CA2738805A1 - Circulated heated transfer fluid systems used to treat a subsurface formation - Google Patents
Circulated heated transfer fluid systems used to treat a subsurface formation Download PDFInfo
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- CA2738805A1 CA2738805A1 CA2738805A CA2738805A CA2738805A1 CA 2738805 A1 CA2738805 A1 CA 2738805A1 CA 2738805 A CA2738805 A CA 2738805A CA 2738805 A CA2738805 A CA 2738805A CA 2738805 A1 CA2738805 A1 CA 2738805A1
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- formation
- heater
- heat transfer
- transfer fluid
- heat
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
- E21B43/2401—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection by means of electricity
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
- E21B44/02—Automatic control of the tool feed
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C3/00—Non-adjustable metal resistors made of wire or ribbon, e.g. coiled, woven or formed as grids
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/42—Heating elements having the shape of rods or tubes non-flexible
- H05B3/48—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
- E21B43/2405—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection in association with fracturing or crevice forming processes
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2214/00—Aspects relating to resistive heating, induction heating and heating using microwaves, covered by groups H05B3/00, H05B6/00
- H05B2214/03—Heating of hydrocarbons
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49082—Resistor making
- Y10T29/49083—Heater type
Abstract
Systems and methods for treating a subsurface formation are described herein.
A method of heating a subsurface formation may include applying heat from a plurality of heaters to the formation, and allowing a portion of one or more of the heaters to move out of wellheads equipped with sliding seals to accommodate thermal expansion of the heaters.
A method of heating a subsurface formation may include applying heat from a plurality of heaters to the formation, and allowing a portion of one or more of the heaters to move out of wellheads equipped with sliding seals to accommodate thermal expansion of the heaters.
Description
CIRCULATED HEATED TRANSFER FLUID SYSTEMS USED TO TREAT A
SUBSURFACE FORMATION
BACKGROUND
1. Field of the Invention [0001] The present invention relates generally to methods and systems for production of hydrocarbons, hydrogen, and/or other products from various subsurface formations such as hydrocarbon containing formations. In particular, certain embodiments relate to using a closed loop circulation system for heating a portion of the formation during an in situ conversion process.
SUBSURFACE FORMATION
BACKGROUND
1. Field of the Invention [0001] The present invention relates generally to methods and systems for production of hydrocarbons, hydrogen, and/or other products from various subsurface formations such as hydrocarbon containing formations. In particular, certain embodiments relate to using a closed loop circulation system for heating a portion of the formation during an in situ conversion process.
2. Description of Related Art [0002] Hydrocarbons obtained from subterranean formations are often used as energy resources, as feedstocks, and as consumer products. Concerns over depletion of available hydrocarbon resources and concerns over declining overall quality of produced hydrocarbons have led to development of processes for more efficient recovery, processing and/or use of available hydrocarbon resources. In situ processes may be used to remove hydrocarbon materials from subterranean formations. Chemical and/or physical properties of hydrocarbon material in a subterranean formation may need to be changed to allow hydrocarbon material to be more easily removed from the subterranean formation. The chemical and physical changes may include in situ reactions that produce removable fluids, composition changes, solubility changes, density changes, phase changes, and/or viscosity changes of the hydrocarbon material in the formation. A fluid may be, but is not limited to, a gas, a liquid, an emulsion, a slurry, and/or a stream of solid particles that has flow characteristics similar to liquid flow.
[0003] Many different types of wells or wellbores may be used to treat the hydrocarbon containing formation using an in situ heat treatment process. In some embodiments, vertical and/or substantially vertical wells are used to treat the formation.
In some embodiments, horizontal or substantially horizontal wells (such as J-shaped wells and/or L-shaped wells), and/or u-shaped wells are used to treat the formation. In some embodiments, combinations of horizontal wells, vertical wells, and/or other combinations are used to treat the formation. In certain embodiments, wells extend through the overburden of the formation to a hydrocarbon containing layer of the formation. In some situations, heat in the wells is lost to the overburden. In some situations, surface and I
overburden infrastructures used to support heaters and/or production equipment in horizontal wellbores or u-shaped wellbores are large in size and/or numerous.
In some embodiments, horizontal or substantially horizontal wells (such as J-shaped wells and/or L-shaped wells), and/or u-shaped wells are used to treat the formation. In some embodiments, combinations of horizontal wells, vertical wells, and/or other combinations are used to treat the formation. In certain embodiments, wells extend through the overburden of the formation to a hydrocarbon containing layer of the formation. In some situations, heat in the wells is lost to the overburden. In some situations, surface and I
overburden infrastructures used to support heaters and/or production equipment in horizontal wellbores or u-shaped wellbores are large in size and/or numerous.
[0004] U.S. Patent No. 7,575,052 to Sandberg et al. describes an in situ heat treatment process that utilizes a circulation system to heat one or more treatment areas. The circulation system may use a heated liquid heat transfer fluid that passes through piping in the formation to transfer heat to the formation.
[0005] U.S. Patent Application Publication No. 2008-0135254 to Vinegar et al.
describes systems and methods for an in situ heat treatment process that utilizes a circulation system to heat one or more treatment areas. The circulation system uses a heated liquid heat transfer fluid that passes through piping in the formation to transfer heat to the formation.
In some embodiments, the piping is positioned in at least two wellbores.
describes systems and methods for an in situ heat treatment process that utilizes a circulation system to heat one or more treatment areas. The circulation system uses a heated liquid heat transfer fluid that passes through piping in the formation to transfer heat to the formation.
In some embodiments, the piping is positioned in at least two wellbores.
[0006] U.S. Patent Application Publication No. 2009-0095476 to Nguyen et al.
describes a heating system for a subsurface formation includes a conduit located in an opening in the subsurface formation. An insulated conductor is located in the conduit. A
material is in the conduit between a portion of the insulated conductor and a portion of the conduit. The material may be a salt. The material is a fluid at operating temperature of the heating system. Heat transfers from the insulated conductor to the fluid, from the fluid to the conduit, and from the conduit to the subsurface formation.
describes a heating system for a subsurface formation includes a conduit located in an opening in the subsurface formation. An insulated conductor is located in the conduit. A
material is in the conduit between a portion of the insulated conductor and a portion of the conduit. The material may be a salt. The material is a fluid at operating temperature of the heating system. Heat transfers from the insulated conductor to the fluid, from the fluid to the conduit, and from the conduit to the subsurface formation.
[0007] There has been a significant amount of effort to develop methods and systems to economically produce hydrocarbons, hydrogen, and/or other products from hydrocarbon containing formations. At present, however, there are still many hydrocarbon containing formations from which hydrocarbons, hydrogen, and/or other products cannot be economically produced. There is also a need for improved methods and systems that reduce energy costs for treating the formation, reduce emissions from the treatment process, facilitate heating system installation, and/or reduce heat loss to the overburden as compared to hydrocarbon recovery processes that utilize surface based equipment.
SUMMARY
SUMMARY
[0008] Embodiments described herein generally relate to systems and methods for treating a subsurface formation.
[0009] The invention, in some embodiments provides, a method for heating a subsurface formation, comprising: applying heat from a plurality of heaters to the formation; and allowing a portion of one or more of the heaters to move out of wellheads equipped with sliding seals to accommodate thermal expansion of the heaters.
[0010] The invention, in some embodiments provides, a method for heating a subsurface formation, comprising: applying heat from a plurality of heaters to the formation; and allowing a portion of one or more of the heaters to move out of wellheads using one or more slip joints.
[0011] The invention, in some embodiments provides, a method for accommodating thermal expansion of a heater in a formation, comprising: heating a heater in the formation;
and lifting a portion of the heater out of the formation to accommodate thermal expansion of the heater.
and lifting a portion of the heater out of the formation to accommodate thermal expansion of the heater.
[0012] The invention, in some embodiments provides, a system for heating a subsurface formation, comprising: a plurality of heaters positioned in the formation, the heaters configured to provide heat to the formation; and at least one lifter coupled to a portion of a heater, the lifter configured to lift portions of the heater out of the formation to accommodate thermal expansion of the heater.
[0013] In further embodiments, features from specific embodiments may be combined with features from other embodiments. For example, features from one embodiment may be combined with features from any of the other embodiments. In further embodiments, treating a subsurface formation is performed using any of the methods and systems described herein. In further embodiments, additional features may be added to the specific embodiments described herein.
BRIEF DESCRIPTION OF THE DRAWINGS
BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Advantages of the present invention may become apparent to those skilled in the art with the benefit of the following detailed description and upon reference to the accompanying drawings in which:
[0015] FIG. 1 shows a schematic view of an embodiment of a portion of an in situ heat treatment system for treating a hydrocarbon containing formation.
[0016] FIG. 2 depicts a schematic representation of an embodiment of a heat transfer fluid circulation system for heating a portion of a formation.
[0017] FIG. 3 depicts a schematic representation of an embodiment of an L-shaped heater for use with a heat transfer fluid circulation system for heating a portion of a formation.
[0018] FIG. 4 depicts a schematic representation of an embodiment of a vertical heater for use with a heat transfer fluid circulation system for heating a portion of a formation where thermal expansion of the heater is accommodated below the surface.
[0019] FIG. 5 depicts a schematic representation of another embodiment of a vertical heater for use with a heat transfer fluid circulation system for heating a portion of a formation where thermal expansion of the heater is accommodated above and below the surface.
[0020] FIG. 6 depicts a cross-sectional view of an embodiment of overburden insulation that utilizes insulating cement.
[0021] FIG. 7 depicts a cross-sectional view of an embodiment of overburden insulation that utilizes an insulating sleeve.
[0022] FIG. 8 depicts a cross-sectional view of an embodiment of overburden insulation that utilizes an insulating sleeve and a vacuum.
[0023] FIG. 9 depicts a representation an embodiment of bellows used to accommodate thermal expansion.
[0024] FIG. 10A depicts a representation of an embodiment of piping with an expansion loop for accommodating thermal expansion.
[0025] FIG. IOB depicts a representation of an embodiment of piping with coiled or spooled piping for accommodating thermal expansion.
[0026] FIG. IOC depicts a representation of an embodiment of piping with coiled or spooled piping for accommodating thermal expansion enclosed in an insulated volume.
[0027] FIG. 11 depicts a representation of an embodiment of insulated piping in a large diameter casing in the overburden.
[0028] FIG. 12 depicts a representation of an embodiment of insulated piping in a large diameter casing in the overburden to accommodate thermal expansion.
[0029] FIG. 13 depicts a representation of an embodiment of a wellhead with a sliding seal, stuffing box, or other pressure control equipment that allows a portion of a heater to move relative to the wellhead.
[0030] FIG. 14 depicts a representation of an embodiment of a wellhead with a slip joint that interacts with a fixed conduit above the wellhead.
[0031] FIG. 15 depicts a representation of an embodiment of a wellhead with a slip joint that interacts with a fixed conduit coupled to the wellhead.
[0032] FIG. 16 depicts a schematic representation of an embodiment a heat transfer fluid circulating system with seals.
[0033] FIG. 17 depicts a schematic representation of another embodiment a heat transfer fluid circulating system with seals.
[0034] FIG. 18 depicts a schematic representation an embodiment a heat transfer fluid circulating system with locking mechanisms and seals.
[0035] FIG. 19 depicts a representation of a u-shaped wellbore with a hot heat transfer fluid circulation system heater positioned in the wellbore.
[0036] FIG. 20 depicts an end view representation of an embodiment of a conduit-in-conduit heater for a heat transfer circulation heating system adjacent to the treatment area.
[0037] FIG. 21 depicts a representation of an embodiment for heating various portions of a heater to restart flow of heat transfer fluid in the heater.
[0038] FIG. 22 depicts a schematic of an embodiment of conduit-in-conduit heaters of a fluid circulation heating system positioned in the formation.
[0039] FIG. 23 depicts a cross-sectional view of an embodiment of a conduit-in-conduit heater adjacent to the overburden.
[0040] FIG. 24 depicts a schematic representation of an embodiment of a circulation system for a liquid heat transfer fluid.
[0041] While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and may herein be described in detail. The drawings may not be to scale. It should be understood, however, that the drawings and detailed description thereto are not intended to limit the invention to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents and alternatives falling within the spirit and scope of the present invention as defined by the appended claims.
DETAILED DESCRIPTION
DETAILED DESCRIPTION
[0042] The following description generally relates to systems and methods for treating hydrocarbons in the formations. Such formations may be treated to yield hydrocarbon products, hydrogen, and other products.
[0043] "API gravity" refers to API gravity at 15.5 C (60 F). API gravity is as determined by ASTM Method D6822 or ASTM Method D1298.
[0044] "Fluid pressure" is a pressure generated by a fluid in a formation.
"Lithostatic pressure" (sometimes referred to as "lithostatic stress") is a pressure in a formation equal to a weight per unit area of an overlying rock mass. "Hydrostatic pressure" is a pressure in a formation exerted by a column of water.
"Lithostatic pressure" (sometimes referred to as "lithostatic stress") is a pressure in a formation equal to a weight per unit area of an overlying rock mass. "Hydrostatic pressure" is a pressure in a formation exerted by a column of water.
[0045] A "formation" includes one or more hydrocarbon containing layers, one or more non-hydrocarbon layers, an overburden, and/or an underburden. "Hydrocarbon layers"
refer to layers in the formation that contain hydrocarbons. The hydrocarbon layers may contain non-hydrocarbon material and hydrocarbon material. The "overburden"
and/or the "underburden" include one or more different types of impermeable materials.
For example, the overburden and/or underburden may include rock, shale, mudstone, or wet/tight carbonate. In some embodiments of in situ heat treatment processes, the overburden and/or the underburden may include a hydrocarbon containing layer or hydrocarbon containing layers that are relatively impermeable and are not subjected to temperatures during in situ heat treatment processing that result in significant characteristic changes of the hydrocarbon containing layers of the overburden and/or the underburden.
For example, the underburden may contain shale or mudstone, but the underburden is not allowed to heat to pyrolysis temperatures during the in situ heat treatment process. In some cases, the overburden and/or the underburden may be somewhat permeable.
refer to layers in the formation that contain hydrocarbons. The hydrocarbon layers may contain non-hydrocarbon material and hydrocarbon material. The "overburden"
and/or the "underburden" include one or more different types of impermeable materials.
For example, the overburden and/or underburden may include rock, shale, mudstone, or wet/tight carbonate. In some embodiments of in situ heat treatment processes, the overburden and/or the underburden may include a hydrocarbon containing layer or hydrocarbon containing layers that are relatively impermeable and are not subjected to temperatures during in situ heat treatment processing that result in significant characteristic changes of the hydrocarbon containing layers of the overburden and/or the underburden.
For example, the underburden may contain shale or mudstone, but the underburden is not allowed to heat to pyrolysis temperatures during the in situ heat treatment process. In some cases, the overburden and/or the underburden may be somewhat permeable.
[0046] "Formation fluids" refer to fluids present in a formation and may include pyrolyzation fluid, synthesis gas, mobilized hydrocarbons, and water (steam).
Formation fluids may include hydrocarbon fluids as well as non-hydrocarbon fluids. The term "mobilized fluid" refers to fluids in a hydrocarbon containing formation that are able to flow as a result of thermal treatment of the formation. "Produced fluids"
refer to fluids removed from the formation.
Formation fluids may include hydrocarbon fluids as well as non-hydrocarbon fluids. The term "mobilized fluid" refers to fluids in a hydrocarbon containing formation that are able to flow as a result of thermal treatment of the formation. "Produced fluids"
refer to fluids removed from the formation.
[0047] A "heat source" is any system for providing heat to at least a portion of a formation substantially by conductive and/or radiative heat transfer. For example, a heat source may electrically conducting materials and/or include electric heaters such as an insulated conductor, an elongated member, and/or a conductor disposed in a conduit. A
heat source may also include systems that generate heat by burning a fuel external to or in a formation.
The systems may be surface burners, downhole gas burners, flameless distributed combustors, and natural distributed combustors. In some embodiments, heat provided to or generated in one or more heat sources may be supplied by other sources of energy. The other sources of energy may directly heat a formation, or the energy may be applied to a transfer medium that directly or indirectly heats the formation. It is to be understood that one or more heat sources that are applying heat to a formation may use different sources of energy. Thus, for example, for a given formation some heat sources may supply heat from electrically conducting materials, electric resistance heaters, some heat sources may provide heat from combustion, and some heat sources may provide heat from one or more other energy sources (for example, chemical reactions, solar energy, wind energy, biomass, or other sources of renewable energy). A chemical reaction may include an exothermic reaction (for example, an oxidation reaction). A heat source may also include a electrically conducting material and/or a heater that provides heat to a zone proximate and/or surrounding a heating location such as a heater well.
heat source may also include systems that generate heat by burning a fuel external to or in a formation.
The systems may be surface burners, downhole gas burners, flameless distributed combustors, and natural distributed combustors. In some embodiments, heat provided to or generated in one or more heat sources may be supplied by other sources of energy. The other sources of energy may directly heat a formation, or the energy may be applied to a transfer medium that directly or indirectly heats the formation. It is to be understood that one or more heat sources that are applying heat to a formation may use different sources of energy. Thus, for example, for a given formation some heat sources may supply heat from electrically conducting materials, electric resistance heaters, some heat sources may provide heat from combustion, and some heat sources may provide heat from one or more other energy sources (for example, chemical reactions, solar energy, wind energy, biomass, or other sources of renewable energy). A chemical reaction may include an exothermic reaction (for example, an oxidation reaction). A heat source may also include a electrically conducting material and/or a heater that provides heat to a zone proximate and/or surrounding a heating location such as a heater well.
[0048] A "heater" is any system or heat source for generating heat in a well or a near wellbore region. Heaters may be, but are not limited to, electric heaters, burners, combustors that react with material in or produced from a formation, and/or combinations thereof.
[0049] "Heavy hydrocarbons" are viscous hydrocarbon fluids. Heavy hydrocarbons may include highly viscous hydrocarbon fluids such as heavy oil, tar, and/or asphalt. Heavy hydrocarbons may include carbon and hydrogen, as well as smaller concentrations of sulfur, oxygen, and nitrogen. Additional elements may also be present in heavy hydrocarbons in trace amounts. Heavy hydrocarbons may be classified by API
gravity.
Heavy hydrocarbons generally have an API gravity below about 20 . Heavy oil, for example, generally has an API gravity of about 10-20 , whereas tar generally has an API
gravity below about 10 . The viscosity of heavy hydrocarbons is generally greater than about 100 centipoise at 15 C. Heavy hydrocarbons may include aromatics or other complex ring hydrocarbons.
gravity.
Heavy hydrocarbons generally have an API gravity below about 20 . Heavy oil, for example, generally has an API gravity of about 10-20 , whereas tar generally has an API
gravity below about 10 . The viscosity of heavy hydrocarbons is generally greater than about 100 centipoise at 15 C. Heavy hydrocarbons may include aromatics or other complex ring hydrocarbons.
[0050] Heavy hydrocarbons may be found in a relatively permeable formation.
The relatively permeable formation may include heavy hydrocarbons entrained in, for example, sand or carbonate. "Relatively permeable" is defined, with respect to formations or portions thereof, as an average permeability of 10 millidarcy or more (for example, 10 or 100 millidarcy). "Relatively low permeability" is defined, with respect to formations or portions thereof, as an average permeability of less than about 10 millidarcy.
One darcy is equal to about 0.99 square micrometers. An impermeable layer generally has a permeability of less than about 0.1 millidarcy.
The relatively permeable formation may include heavy hydrocarbons entrained in, for example, sand or carbonate. "Relatively permeable" is defined, with respect to formations or portions thereof, as an average permeability of 10 millidarcy or more (for example, 10 or 100 millidarcy). "Relatively low permeability" is defined, with respect to formations or portions thereof, as an average permeability of less than about 10 millidarcy.
One darcy is equal to about 0.99 square micrometers. An impermeable layer generally has a permeability of less than about 0.1 millidarcy.
[0051] Certain types of formations that include heavy hydrocarbons may also include, but are not limited to, natural mineral waxes, or natural asphaltites. "Natural mineral waxes"
typically occur in substantially tubular veins that may be several meters wide, several kilometers long, and hundreds of meters deep. "Natural asphaltites" include solid hydrocarbons of an aromatic composition and typically occur in large veins. In situ recovery of hydrocarbons from formations such as natural mineral waxes and natural asphaltites may include melting to form liquid hydrocarbons and/or solution mining of hydrocarbons from the formations.
typically occur in substantially tubular veins that may be several meters wide, several kilometers long, and hundreds of meters deep. "Natural asphaltites" include solid hydrocarbons of an aromatic composition and typically occur in large veins. In situ recovery of hydrocarbons from formations such as natural mineral waxes and natural asphaltites may include melting to form liquid hydrocarbons and/or solution mining of hydrocarbons from the formations.
[0052] "Hydrocarbons" are generally defined as molecules formed primarily by carbon and hydrogen atoms. Hydrocarbons may also include other elements such as, but not limited to, halogens, metallic elements, nitrogen, oxygen, and/or sulfur. Hydrocarbons may be, but are not limited to, kerogen, bitumen, pyrobitumen, oils, natural mineral waxes, and asphaltites. Hydrocarbons may be located in or adjacent to mineral matrices in the earth.
Matrices may include, but are not limited to, sedimentary rock, sands, silicilytes, carbonates, diatomites, and other porous media. "Hydrocarbon fluids" are fluids that include hydrocarbons. Hydrocarbon fluids may include, entrain, or be entrained in non-hydrocarbon fluids such as hydrogen, nitrogen, carbon monoxide, carbon dioxide, hydrogen sulfide, water, and ammonia.
Matrices may include, but are not limited to, sedimentary rock, sands, silicilytes, carbonates, diatomites, and other porous media. "Hydrocarbon fluids" are fluids that include hydrocarbons. Hydrocarbon fluids may include, entrain, or be entrained in non-hydrocarbon fluids such as hydrogen, nitrogen, carbon monoxide, carbon dioxide, hydrogen sulfide, water, and ammonia.
[0053] An "in situ conversion process" refers to a process of heating a hydrocarbon containing formation from heat sources to raise the temperature of at least a portion of the formation above a pyrolysis temperature so that pyrolyzation fluid is produced in the formation.
[0054] An "in situ heat treatment process" refers to a process of heating a hydrocarbon containing formation with heat sources to raise the temperature of at least a portion of the formation above a temperature that results in mobilized fluid, visbreaking, and/or pyrolysis of hydrocarbon containing material so that mobilized fluids, visbroken fluids, and/or pyrolyzation fluids are produced in the formation.
[0055] "Insulated conductor" refers to any elongated material that is able to conduct electricity and that is covered, in whole or in part, by an electrically insulating material.
[0056] "Pyrolysis" is the breaking of chemical bonds due to the application of heat. For example, pyrolysis may include transforming a compound into one or more other substances by heat alone. Heat may be transferred to a section of the formation to cause pyrolysis.
[0057] "Pyrolyzation fluids" or "pyrolysis products" refers to fluid produced substantially during pyrolysis of hydrocarbons. Fluid produced by pyrolysis reactions may mix with other fluids in a formation. The mixture would be considered pyrolyzation fluid or pyrolyzation product. As used herein, "pyrolysis zone" refers to a volume of a formation (for example, a relatively permeable formation such as a tar sands formation) that is reacted or reacting to form a pyrolyzation fluid.
[0058] "Superposition of heat" refers to providing heat from two or more heat sources to a selected section of a formation such that the temperature of the formation at least at one location between the heat sources is influenced by the heat sources.
[0059] A "tar sands formation" is a formation in which hydrocarbons are predominantly present in the form of heavy hydrocarbons and/or tar entrained in a mineral grain framework or other host lithology (for example, sand or carbonate). Examples of tar sands formations include formations such as the Athabasca formation, the Grosmont formation, and the Peace River formation, all three in Alberta, Canada; and the Faja formation in the Orinoco belt in Venezuela.
[0060] "Temperature limited heater" generally refers to a heater that regulates heat output (for example, reduces heat output) above a specified temperature without the use of external controls such as temperature controllers, power regulators, rectifiers, or other devices. Temperature limited heaters may be AC (alternating current) or modulated (for example, "chopped") DC (direct current) powered electrical resistance heaters.
[0061] "Thickness" of a layer refers to the thickness of a cross section of the layer, wherein the cross section is normal to a face of the layer.
[0062] A "u-shaped wellbore" refers to a wellbore that extends from a first opening in the formation, through at least a portion of the formation, and out through a second opening in the formation. In this context, the wellbore may be only roughly in the shape of a "v" or "u", with the understanding that the "legs" of the "u" do not need to be parallel to each other, or perpendicular to the "bottom" of the "u" for the wellbore to be considered "u-shaped".
[0063] "Upgrade" refers to increasing the quality of hydrocarbons. For example, upgrading heavy hydrocarbons may result in an increase in the API gravity of the heavy hydrocarbons.
[0064] "Visbreaking" refers to the untangling of molecules in fluid during heat treatment and/or to the breaking of large molecules into smaller molecules during heat treatment, which results in a reduction of the viscosity of the fluid.
[0065] "Viscosity" refers to kinematic viscosity at 40 C unless otherwise specified.
Viscosity is as determined by ASTM Method D445.
Viscosity is as determined by ASTM Method D445.
[0066] The term "wellbore" refers to a hole in a formation made by drilling or insertion of a conduit into the formation. A wellbore may have a substantially circular cross section, or another cross-sectional shape. As used herein, the terms "well" and "opening,"
when referring to an opening in the formation may be used interchangeably with the term "wellbore."
when referring to an opening in the formation may be used interchangeably with the term "wellbore."
[0067] A formation may be treated in various ways to produce many different products.
Different stages or processes may be used to treat the formation during an in situ heat treatment process. In some embodiments, one or more sections of the formation are solution mined to remove soluble minerals from the sections. Solution mining minerals may be performed before, during, and/or after the in situ heat treatment process. In some embodiments, the average temperature of one or more sections being solution mined may be maintained below about 120 C.
Different stages or processes may be used to treat the formation during an in situ heat treatment process. In some embodiments, one or more sections of the formation are solution mined to remove soluble minerals from the sections. Solution mining minerals may be performed before, during, and/or after the in situ heat treatment process. In some embodiments, the average temperature of one or more sections being solution mined may be maintained below about 120 C.
[0068] In some embodiments, one or more sections of the formation are heated to remove water from the sections and/or to remove methane and other volatile hydrocarbons from the sections. In some embodiments, the average temperature may be raised from ambient temperature to temperatures below about 220 C during removal of water and volatile hydrocarbons.
[0069] In some embodiments, one or more sections of the formation are heated to temperatures that allow for movement and/or visbreaking of hydrocarbons in the formation. In some embodiments, the average temperature of one or more sections of the formation are raised to mobilization temperatures of hydrocarbons in the sections (for example, to temperatures ranging from 100 C to 250 C, from 120 C to 240 C, or from 150 C to 230 C).
[0070] In some embodiments, one or more sections are heated to temperatures that allow for pyrolysis reactions in the formation. In some embodiments, the average temperature of one or more sections of the formation may be raised to pyrolysis temperatures of hydrocarbons in the sections (for example, temperatures ranging from 230 C to 900 C, from 240 C to 400 C or from 250 C to 350 C).
[0071] Heating the hydrocarbon containing formation with a plurality of heat sources may establish thermal gradients around the heat sources that raise the temperature of hydrocarbons in the formation to desired temperatures at desired heating rates. The rate of temperature increase through mobilization temperature range and/or pyrolysis temperature range for desired products may affect the quality and quantity of the formation fluids produced from the hydrocarbon containing formation. Slowly raising the temperature of the formation through the mobilization temperature range and/or pyrolysis temperature range may allow for the production of high quality, high API gravity hydrocarbons from the formation. Slowly raising the temperature of the formation through the mobilization temperature range and/or pyrolysis temperature range may allow for the removal of a large amount of the hydrocarbons present in the formation as hydrocarbon product.
[0072] In some in situ heat treatment embodiments, a portion of the formation is heated to a desired temperature instead of slowly heating the temperature through a temperature range. In some embodiments, the desired temperature is 300 C, 325 C, or 350 C. Other temperatures may be selected as the desired temperature.
[0073] Superposition of heat from heat sources allows the desired temperature to be relatively quickly and efficiently established in the formation. Energy input into the formation from the heat sources may be adjusted to maintain the temperature in the formation substantially at a desired temperature.
[0074] Mobilization and/or pyrolysis products may be produced from the formation through production wells. In some embodiments, the average temperature of one or more sections is raised to mobilization temperatures and hydrocarbons are produced from the production wells. The average temperature of one or more of the sections may be raised to pyrolysis temperatures after production due to mobilization decreases below a selected value. In some embodiments, the average temperature of one or more sections may be raised to pyrolysis temperatures without significant production before reaching pyrolysis temperatures. Formation fluids including pyrolysis products may be produced through the production wells.
[0075] In some embodiments, the average temperature of one or more sections may be raised to temperatures sufficient to allow synthesis gas production after mobilization and/or pyrolysis. In some embodiments, hydrocarbons may be raised to temperatures sufficient to allow synthesis gas production without significant production before reaching the temperatures sufficient to allow synthesis gas production. For example, synthesis gas may be produced in a temperature range from about 400 C to about 1200 C, about 500 C to about 1100 C, or about 550 C to about 1000 C. A synthesis gas generating fluid (for example, steam and/or water) may be introduced into the sections to generate synthesis gas. Synthesis gas may be produced from production wells.
[0076] Solution mining, removal of volatile hydrocarbons and water, mobilizing hydrocarbons, pyrolyzing hydrocarbons, generating synthesis gas, and/or other processes may be performed during the in situ heat treatment process. In some embodiments, some processes may be performed after the in situ heat treatment process. Such processes may include, but are not limited to, recovering heat from treated sections, storing fluids (for example, water and/or hydrocarbons) in previously treated sections, and/or sequestering carbon dioxide in previously treated sections.
[0077] FIG. 1 depicts a schematic view of an embodiment of a portion of the in situ heat treatment system for treating the hydrocarbon containing formation. The in situ heat treatment system may include barrier wells 100. Barrier wells are used to form a barrier around a treatment area. The barrier inhibits fluid flow into and/or out of the treatment area. Barrier wells include, but are not limited to, dewatering wells, vacuum wells, capture wells, injection wells, grout wells, freeze wells, or combinations thereof. In some embodiments, barrier wells 100 are dewatering wells. Dewatering wells may remove liquid water and/or inhibit liquid water from entering a portion of the formation to be heated, or to the formation being heated. In the embodiment depicted in FIG.
1, the barrier wells 100 are shown extending only along one side of heat sources 102, but the barrier wells typically encircle all heat sources 102 used, or to be used, to heat a treatment area of the formation.
1, the barrier wells 100 are shown extending only along one side of heat sources 102, but the barrier wells typically encircle all heat sources 102 used, or to be used, to heat a treatment area of the formation.
[0078] Heat sources 102 are placed in at least a portion of the formation.
Heat sources 102 may include electrically conducting materials. In some embodiments, heaters such as insulated conductors, conductor-in-conduit heaters, surface burners, flameless distributed combustors, and/or natural distributed combustors. Heat sources 102 may also include other types of heaters. Heat sources 102 provide heat to at least a portion of the formation to heat hydrocarbons in the formation. Energy may be supplied to heat sources through supply lines 104. Supply lines 104 may be structurally different depending on the type of heat source or heat sources used to heat the formation. Supply lines 104 for heat sources may transmit electricity for electrically conducting materials or electric heaters, may transport fuel for combustors, or may transport heat exchange fluid that is circulated in the formation. In some embodiments, electricity for an in situ heat treatment process may be provided by a nuclear power plant or nuclear power plants. The use of nuclear power may allow for reduction or elimination of carbon dioxide emissions from the in situ heat treatment process.
Heat sources 102 may include electrically conducting materials. In some embodiments, heaters such as insulated conductors, conductor-in-conduit heaters, surface burners, flameless distributed combustors, and/or natural distributed combustors. Heat sources 102 may also include other types of heaters. Heat sources 102 provide heat to at least a portion of the formation to heat hydrocarbons in the formation. Energy may be supplied to heat sources through supply lines 104. Supply lines 104 may be structurally different depending on the type of heat source or heat sources used to heat the formation. Supply lines 104 for heat sources may transmit electricity for electrically conducting materials or electric heaters, may transport fuel for combustors, or may transport heat exchange fluid that is circulated in the formation. In some embodiments, electricity for an in situ heat treatment process may be provided by a nuclear power plant or nuclear power plants. The use of nuclear power may allow for reduction or elimination of carbon dioxide emissions from the in situ heat treatment process.
[0079] Heating the formation may cause an increase in permeability and/or porosity of the formation. Increases in permeability and/or porosity may result from a reduction of mass in the formation due to vaporization and removal of water, removal of hydrocarbons, and/or creation of fractures. Fluid may flow more easily in the heated portion of the formation because of the increased permeability and/or porosity of the formation. Fluid in the heated portion of the formation may move a considerable distance through the formation because of the increased permeability and/or porosity. The considerable distance may be over 1000 m depending on various factors, such as permeability of the formation, properties of the fluid, temperature of the formation, and pressure gradient allowing movement of the fluid. The ability of fluid to travel considerable distance in the formation allows production wells 106 to be spaced relatively far apart in the formation.
[0080] Production wells 106 are used to remove formation fluid from the formation. In some embodiments, production well 106 includes a heat source. The heat source in the production well may heat one or more portions of the formation at or near the production well. In some in situ heat treatment process embodiments, the amount of heat supplied to the formation from the production well per meter of the production well is less than the amount of heat applied to the formation from a heat source that heats the formation per meter of the heat source. Heat applied to the formation from the production well may increase formation permeability adjacent to the production well by vaporizing and removing liquid phase fluid adjacent to the production well and/or by increasing the permeability of the formation adjacent to the production well by formation of macro and/or micro fractures.
[0081] In some embodiments, the heat source in production well 106 allows for vapor phase removal of formation fluids from the formation. Providing heating at or through the production well may: (1) inhibit condensation and/or refluxing of production fluid when such production fluid is moving in the production well proximate the overburden, (2) increase heat input into the formation, (3) increase production rate from the production well as compared to a production well without a heat source, (4) inhibit condensation of high carbon number compounds (C6 hydrocarbons and above) in the production well, and/or (5) increase formation permeability at or proximate the production well.
[0082] Subsurface pressure in the formation may correspond to the fluid pressure generated in the formation. As temperatures in the heated portion of the formation increase, the pressure in the heated portion may increase as a result of thermal expansion of in situ fluids, increased fluid generation and vaporization of water.
Controlling rate of fluid removal from the formation may allow for control of pressure in the formation.
Pressure in the formation may be determined at a number of different locations, such as near or at production wells, near or at heat sources, or at monitor wells.
Controlling rate of fluid removal from the formation may allow for control of pressure in the formation.
Pressure in the formation may be determined at a number of different locations, such as near or at production wells, near or at heat sources, or at monitor wells.
[0083] In some hydrocarbon containing formations, production of hydrocarbons from the formation is inhibited until at least some hydrocarbons in the formation have been mobilized and/or pyrolyzed. Formation fluid may be produced from the formation when the formation fluid is of a selected quality. In some embodiments, the selected quality includes an API gravity of at least about 20 , 30 , or 40 . Inhibiting production until at least some hydrocarbons are mobilized and/or pyrolyzed may increase conversion of heavy hydrocarbons to light hydrocarbons. Inhibiting initial production may minimize the production of heavy hydrocarbons from the formation. Production of substantial amounts of heavy hydrocarbons may require expensive equipment and/or reduce the life of production equipment.
[0084] In some embodiments, pressure generated by expansion of mobilized fluids, pyrolysis fluids or other fluids generated in the formation may be allowed to increase although an open path to production wells 106 or any other pressure sink may not yet exist in the formation. The fluid pressure may be allowed to increase towards a lithostatic pressure. Fractures in the hydrocarbon containing formation may form when the fluid approaches the lithostatic pressure. For example, fractures may form from heat sources 102 to production wells 106 in the heated portion of the formation. The generation of fractures in the heated portion may relieve some of the pressure in the portion. Pressure in the formation may have to be maintained below a selected pressure to inhibit unwanted production, fracturing of the overburden or underburden, and/or coking of hydrocarbons in the formation.
[0085] After mobilization and/or pyrolysis temperatures are reached and production from the formation is allowed, pressure in the formation may be varied to alter and/or control a composition of formation fluid produced, to control a percentage of condensable fluid as compared to non-condensable fluid in the formation fluid, and/or to control an API gravity of formation fluid being produced. For example, decreasing pressure may result in production of a larger condensable fluid component. The condensable fluid component may contain a larger percentage of olefins.
[0086] In some in situ heat treatment process embodiments, pressure in the formation may be maintained high enough to promote production of formation fluid with an API
gravity of greater than 20 . Maintaining increased pressure in the formation may inhibit formation subsidence during in situ heat treatment. Maintaining increased pressure may reduce or eliminate the need to compress formation fluids at the surface to transport the fluids in collection conduits to treatment facilities.
gravity of greater than 20 . Maintaining increased pressure in the formation may inhibit formation subsidence during in situ heat treatment. Maintaining increased pressure may reduce or eliminate the need to compress formation fluids at the surface to transport the fluids in collection conduits to treatment facilities.
[0087] Maintaining increased pressure in a heated portion of the formation may surprisingly allow for production of large quantities of hydrocarbons of increased quality and of relatively low molecular weight. Pressure may be maintained so that formation fluid produced has a minimal amount of compounds above a selected carbon number. The selected carbon number may be at most 25, at most 20, at most 12, or at most 8. Some high carbon number compounds may be entrained in vapor in the formation and may be removed from the formation with the vapor. Maintaining increased pressure in the formation may inhibit entrainment of high carbon number compounds and/or multi-ring hydrocarbon compounds in the vapor. High carbon number compounds and/or multi-ring hydrocarbon compounds may remain in a liquid phase in the formation for significant time periods. The significant time periods may provide sufficient time for the compounds to pyrolyze to form lower carbon number compounds.
[0088] Formation fluid produced from production wells 106 may be transported through collection piping 108 to treatment facilities 110. Formation fluids may also be produced from heat sources 102. For example, fluid may be produced from heat sources 102 to control pressure in the formation adjacent to the heat sources. Fluid produced from heat sources 102 may be transported through tubing or piping to collection piping 108 or the produced fluid may be transported through tubing or piping directly to treatment facilities 110. Treatment facilities 110 may include separation units, reaction units, upgrading units, fuel cells, turbines, storage vessels, and/or other systems and units for processing produced formation fluids. The treatment facilities may form transportation fuel from at least a portion of the hydrocarbons produced from the formation. In some embodiments, the transportation fuel may be jet fuel, such as JP-8.
[0089] In certain embodiments, heat sources, heat source power sources, production equipment, supply lines, and/or other heat source or production support equipment are positioned in tunnels to enable smaller sized heat sources and/or smaller sized equipment to be used to treat the formation. Positioning such equipment and/or structures in tunnels may also reduce energy costs for treating the formation, reduce emissions from the treatment process, facilitate heating system installation, and/or reduce heat loss to the overburden as compared to hydrocarbon recovery processes that utilize surface based equipment. The tunnels may be, for example, substantially horizontal tunnels and/or inclined tunnels.
[0090] In some in situ heat treatment process embodiments, a circulation system is used to heat the formation. Using the circulation system for in situ heat treatment of a hydrocarbon containing formation may reduce energy costs for treating the formation, reduce emissions from the treatment process, and/or facilitate heating system installation. In certain embodiments, the circulation system is a closed loop circulation system. FIG.
2 depicts a schematic representation of a system for heating a formation using a circulation system.
The system may be used to heat hydrocarbons that are relatively deep in the ground and that are in formations that are relatively large in extent. In some embodiments, the hydrocarbons may be 100 m, 200 m, 300 m or more below the surface. The circulation system may also be used to heat hydrocarbons that are not as deep in the ground. The hydrocarbons may be in formations that extend lengthwise up to 1000 m, 3000 m, 5000 m, or more. The heaters of the circulation system may be positioned relative to adjacent heaters such that superposition of heat between heaters of the circulation system allows the temperature of the formation to be raised at least above the boiling point of aqueous formation fluid in the formation.
2 depicts a schematic representation of a system for heating a formation using a circulation system.
The system may be used to heat hydrocarbons that are relatively deep in the ground and that are in formations that are relatively large in extent. In some embodiments, the hydrocarbons may be 100 m, 200 m, 300 m or more below the surface. The circulation system may also be used to heat hydrocarbons that are not as deep in the ground. The hydrocarbons may be in formations that extend lengthwise up to 1000 m, 3000 m, 5000 m, or more. The heaters of the circulation system may be positioned relative to adjacent heaters such that superposition of heat between heaters of the circulation system allows the temperature of the formation to be raised at least above the boiling point of aqueous formation fluid in the formation.
[0091] In some embodiments, heaters 200 may be formed in the formation by drilling a first wellbore and then drilling a second wellbore that connects with the first wellbore.
Piping may be positioned in the u-shaped wellbore to form u-shaped heater 200.
Heaters 200 are connected to heat transfer fluid circulation system 202 by piping. In some embodiments, the heaters are positioned in triangular patterns. In some embodiments, other regular or irregular patterns are used. Production wells and/or injection wells may also be located in the formation. The production wells and/or the injection wells may have long substantially horizontal sections similar to the heating portions of heaters 200, or the production wells and/or injection wells may be otherwise oriented (for example, the wells may be vertically oriented wells, or wells that include one or more slanted portions).
Piping may be positioned in the u-shaped wellbore to form u-shaped heater 200.
Heaters 200 are connected to heat transfer fluid circulation system 202 by piping. In some embodiments, the heaters are positioned in triangular patterns. In some embodiments, other regular or irregular patterns are used. Production wells and/or injection wells may also be located in the formation. The production wells and/or the injection wells may have long substantially horizontal sections similar to the heating portions of heaters 200, or the production wells and/or injection wells may be otherwise oriented (for example, the wells may be vertically oriented wells, or wells that include one or more slanted portions).
[0092] As depicted in FIG. 2, heat transfer fluid circulation system 202 may include heat supply 204, first heat exchanger 206, second heat exchanger 208, and fluid movers 210.
Heat supply 204 heats the heat transfer fluid to a high temperature. Heat supply 204 may be a furnace, solar collector, chemical reactor, nuclear reactor, fuel cell, and/or other high temperature source able to supply heat to the heat transfer fluid. If the heat transfer fluid is a gas, fluid movers 210 may be compressors. If the heat transfer fluid is a liquid, fluid movers 210 may be pumps.
Heat supply 204 heats the heat transfer fluid to a high temperature. Heat supply 204 may be a furnace, solar collector, chemical reactor, nuclear reactor, fuel cell, and/or other high temperature source able to supply heat to the heat transfer fluid. If the heat transfer fluid is a gas, fluid movers 210 may be compressors. If the heat transfer fluid is a liquid, fluid movers 210 may be pumps.
[0093] After exiting formation 212, the heat transfer fluid passes through first heat exchanger 206 and second heat exchanger 208 to fluid movers 210. First heat exchanger 206 transfers heat between heat transfer fluid exiting formation 212 and heat transfer fluid exiting fluid movers 210 to raise the temperature of the heat transfer fluid that enters heat supply 204 and reduce the temperature of the fluid exiting formation 212.
Second heat exchanger 208 further reduces the temperature of the heat transfer fluid. In some embodiments, second heat exchanger 208 includes or is a storage tank for the heat transfer fluid.
Second heat exchanger 208 further reduces the temperature of the heat transfer fluid. In some embodiments, second heat exchanger 208 includes or is a storage tank for the heat transfer fluid.
[0094] Heat transfer fluid passes from second heat exchanger 208 to fluid movers 210.
Fluid movers 210 may be located before heat supply 204 so that the fluid movers do not have to operate at a high temperature.
Fluid movers 210 may be located before heat supply 204 so that the fluid movers do not have to operate at a high temperature.
[0095] In an embodiment, the heat transfer fluid is carbon dioxide. Heat supply 204 is a furnace that heats the heat transfer fluid to a temperature in a range from about 700 C to about 920 C, from about 770 C to about 870 C, or from about 800 C to about 850 C.
In an embodiment, heat supply 204 heats the heat transfer fluid to a temperature of about 820 C. The heat transfer fluid flows from heat supply 204 to heaters 200.
Heat transfers from heaters 200 to formation 212 adjacent to the heaters. The temperature of the heat transfer fluid exiting formation 212 may be in a range from about 350 C to about 580 C, from about 400 C to about 530 C, or from about 450 C to about 500 C. In an embodiment, the temperature of the heat transfer fluid exiting formation 212 is about 480 C. The metallurgy of the piping used to form heat transfer fluid circulation system 202 may be varied to significantly reduce costs of the piping. High temperature steel may be used from heat supply 204 to a point where the temperature is sufficiently low so that less expensive steel can be used from that point to first heat exchanger 206.
Several different steel grades may be used to form the piping of heat transfer fluid circulation system 202.
In an embodiment, heat supply 204 heats the heat transfer fluid to a temperature of about 820 C. The heat transfer fluid flows from heat supply 204 to heaters 200.
Heat transfers from heaters 200 to formation 212 adjacent to the heaters. The temperature of the heat transfer fluid exiting formation 212 may be in a range from about 350 C to about 580 C, from about 400 C to about 530 C, or from about 450 C to about 500 C. In an embodiment, the temperature of the heat transfer fluid exiting formation 212 is about 480 C. The metallurgy of the piping used to form heat transfer fluid circulation system 202 may be varied to significantly reduce costs of the piping. High temperature steel may be used from heat supply 204 to a point where the temperature is sufficiently low so that less expensive steel can be used from that point to first heat exchanger 206.
Several different steel grades may be used to form the piping of heat transfer fluid circulation system 202.
[0096] In some embodiments, solar salt (for example, a salt containing 60 wt%
NaNO3 and 40 wt% KNO3) is used as the heat transfer fluid in the circulated fluid system. Solar salt may have a melting point of about 230 C and an upper working temperature limit of about 565 C. In some embodiments, LiNO3 (for example, between about 10% by weight and about 30% by weight LiNO3) may be added to the solar salt to produce tertiary salt mixtures with wider operating temperature ranges and lower melting temperatures with only a slight decrease in the maximum working temperature as compared to solar salt. The lower melting temperature of the tertiary salt mixtures may decrease the preheating requirements and allow the use of pressurized water and/or pressurized brine as a heat transfer fluid for preheating the piping of the circulation system. The corrosion rates of the metal of the heaters due to the tertiary salt compositions at 550 C is comparable to the corrosion rate of the metal of the heaters due to solar salt at 565 C. TABLE
1 shows melting points and upper limits for solar salt and tertiary salt mixtures.
Aqueous solutions of tertiary salt mixtures may transition into a molten salt upon removal of water without solidification, thus allowing the molten salts to be provided and/or stored as aqueous solutions.
NO3 Salt Composition of NO3 Melting Point ( C) of Upper working Salt (weight %) NO3 salt temperature limit ( C) of NO3 salt Na:K 60:40 230 600 Li:Na:K 12:18:70 200 550 Li:Na:K 20:28:52 150 550 Li:Na:K 27:33:40 160 550 Li:Na:K 30:18:52 120 550 [0097] Heat supply 204 may be a furnace that heats the heat transfer fluid to a temperature of about 560 C. The return temperature of the heat transfer fluid may be from about 350 C to about 450 C. Piping from heat transfer fluid circulation system 202 may be insulated and/or heat traced to facilitate startup and to ensure fluid flow.
NaNO3 and 40 wt% KNO3) is used as the heat transfer fluid in the circulated fluid system. Solar salt may have a melting point of about 230 C and an upper working temperature limit of about 565 C. In some embodiments, LiNO3 (for example, between about 10% by weight and about 30% by weight LiNO3) may be added to the solar salt to produce tertiary salt mixtures with wider operating temperature ranges and lower melting temperatures with only a slight decrease in the maximum working temperature as compared to solar salt. The lower melting temperature of the tertiary salt mixtures may decrease the preheating requirements and allow the use of pressurized water and/or pressurized brine as a heat transfer fluid for preheating the piping of the circulation system. The corrosion rates of the metal of the heaters due to the tertiary salt compositions at 550 C is comparable to the corrosion rate of the metal of the heaters due to solar salt at 565 C. TABLE
1 shows melting points and upper limits for solar salt and tertiary salt mixtures.
Aqueous solutions of tertiary salt mixtures may transition into a molten salt upon removal of water without solidification, thus allowing the molten salts to be provided and/or stored as aqueous solutions.
NO3 Salt Composition of NO3 Melting Point ( C) of Upper working Salt (weight %) NO3 salt temperature limit ( C) of NO3 salt Na:K 60:40 230 600 Li:Na:K 12:18:70 200 550 Li:Na:K 20:28:52 150 550 Li:Na:K 27:33:40 160 550 Li:Na:K 30:18:52 120 550 [0097] Heat supply 204 may be a furnace that heats the heat transfer fluid to a temperature of about 560 C. The return temperature of the heat transfer fluid may be from about 350 C to about 450 C. Piping from heat transfer fluid circulation system 202 may be insulated and/or heat traced to facilitate startup and to ensure fluid flow.
[0098] In some embodiments vertical, slanted, or L-shaped wells heater wellbores may be used instead of u-shaped wellbores (for example, wellbores that have an entrance at a first location and an exit at another location). FIG. 3 depicts L-shaped heater 200.
Heater 200 may be coupled to heat transfer fluid circulation system 202 and may include inlet conduit 214, and outlet conduit 216. Heat transfer fluid circulation system 202 may supply heat transfer fluid to multiple heaters. Heat transfer fluid from heat transfer fluid circulation system 202 may flow down inlet conduit 214 and back up outlet conduit 216.
Inlet conduit 214 and outlet conduit 216 may be insulated through overburden 218. In some embodiments, inlet conduit 214 is insulated through overburden 218 and hydrocarbon containing layer 220 to inhibit undesired heat transfer between ingoing and outgoing heat transfer fluid.
Heater 200 may be coupled to heat transfer fluid circulation system 202 and may include inlet conduit 214, and outlet conduit 216. Heat transfer fluid circulation system 202 may supply heat transfer fluid to multiple heaters. Heat transfer fluid from heat transfer fluid circulation system 202 may flow down inlet conduit 214 and back up outlet conduit 216.
Inlet conduit 214 and outlet conduit 216 may be insulated through overburden 218. In some embodiments, inlet conduit 214 is insulated through overburden 218 and hydrocarbon containing layer 220 to inhibit undesired heat transfer between ingoing and outgoing heat transfer fluid.
[0099] In some embodiments, portions of wellbore 222 adjacent to overburden 218 are larger than portions of the wellbore adjacent to hydrocarbon containing layer 220. Having a larger opening adjacent to the overburden may allow for accommodation of insulation used to insulate inlet conduit 214 and/or outlet conduit 216. Some heat loss to the overburden from the return flow may not affect the efficiency significantly, especially when the heat transfer fluid is molten salt or another fluid that needs to be heated to remain a liquid. The heated overburden adjacent to heater 200 may maintain the heat transfer fluid as a liquid for a significant time should circulation of heat transfer fluid stop. Having some allowance for some heat transfer to overburden 218 may eliminate the need for expensive insulation systems between outlet conduit 216 and the overburden. In some embodiments, insulative cement is used between overburden 218 and outlet conduit 216.
[0100] For vertical, slanted, or L-shaped heaters, the wellbores may be drilled longer than needed to accommodate non-energized heaters (for example, installed but inactive heaters).
Thermal expansion of the heaters after energization may cause portions of the heaters to move into the extra length of the wellbores designed to accommodate the thermal expansion of the heaters. For L-shaped heaters, remaining drilling fluid and/or formation fluid in the wellbore may facilitate movement of the heater deeper into the wellbore as the heater expands during preheating and/or heating with heat transfer fluid.
Thermal expansion of the heaters after energization may cause portions of the heaters to move into the extra length of the wellbores designed to accommodate the thermal expansion of the heaters. For L-shaped heaters, remaining drilling fluid and/or formation fluid in the wellbore may facilitate movement of the heater deeper into the wellbore as the heater expands during preheating and/or heating with heat transfer fluid.
[0101] For vertical or slanted wellbores, the wellbores may be drilled deeper than needed to accommodate the non-energized heaters. When the heater is preheated and/or heated with the heat transfer fluid, the heater may expand into the extra depth of the wellbore. In some embodiments, an expansion sleeve may be attached at the end of the heater to ensure available space for thermal expansion in case of unstable boreholes.
[0102] FIG. 4 depicts a schematic representation of an embodiment of a portion of vertical heater 200. Heat transfer fluid circulation system 202 may provide heat transfer fluid to inlet conduit 214 of heater 200. Heat transfer fluid circulation system 202 may receive heat transfer fluid from outlet conduit heat 216. Inlet conduit 214 may be secured to outlet conduit 216 by welds 228. Inlet conduit 214 may include insulating sleeve 224.
Insulating sleeve 224 may be formed of a number of sections. Each section of insulating sleeve 224 for inlet conduit 214 is able to accommodate the thermal expansion caused by the temperature difference between the temperature of the inlet conduit and the temperature outside the insulating sleeve. Change in length of inlet conduit 214 and insulation sleeve 224 due to thermal expansion is accommodated in outlet conduit 216.
Insulating sleeve 224 may be formed of a number of sections. Each section of insulating sleeve 224 for inlet conduit 214 is able to accommodate the thermal expansion caused by the temperature difference between the temperature of the inlet conduit and the temperature outside the insulating sleeve. Change in length of inlet conduit 214 and insulation sleeve 224 due to thermal expansion is accommodated in outlet conduit 216.
[0103] Outlet conduit 216 may include insulating sleeve 224'. Insulating sleeve 224' may end near the boundary between overburden 218 and hydrocarbon layer 220. In some embodiments, insulating sleeve 224' is installed using a coiled tubing rig. An upper first portion of insulating sleeve 224' may be secured to outlet conduit 216 above or near wellhead 226 by weld 228. Heater 200 may be supported in wellhead 226 by a coupling between the outer support member of insulating sleeve 224' and the wellhead.
The outer support member of insulating sleeve 224' may have sufficient strength to support heater 200.
The outer support member of insulating sleeve 224' may have sufficient strength to support heater 200.
[0104] In some embodiments, insulating sleeve 224' includes a second portion (insulating sleeve portion 224") that is separate and lower than the first portion of insulating sleeve 224'. Insulating sleeve portion 224" may be secured to outlet conduit 216 by welds 228 or other types of seals that can withstand high temperatures below packer 230.
Welds 228 between insulating sleeve portion 224" and outlet conduit 216 may inhibit formation fluid from passing between the insulating sleeve and the outlet conduit. During heating, differential thermal expansion between the cooler outer surface and the hotter inner surface of insulating sleeve 224' may cause separation between the first portion of the insulating sleeve and the second portion of the insulating sleeve (insulating sleeve portion 224").
This separation may occur adjacent to the overburden portion of heater 200 above packer 230. Insulating cement between casing 238 and the formation may further inhibit heat loss to the formation and improve the overall energy efficiency of the system.
Welds 228 between insulating sleeve portion 224" and outlet conduit 216 may inhibit formation fluid from passing between the insulating sleeve and the outlet conduit. During heating, differential thermal expansion between the cooler outer surface and the hotter inner surface of insulating sleeve 224' may cause separation between the first portion of the insulating sleeve and the second portion of the insulating sleeve (insulating sleeve portion 224").
This separation may occur adjacent to the overburden portion of heater 200 above packer 230. Insulating cement between casing 238 and the formation may further inhibit heat loss to the formation and improve the overall energy efficiency of the system.
[0105] Packer 230 may be a polished bore receptacle. Packer 230 may be fixed to casing 238 of the wellbore 222. In some embodiments, packer 230 is 1000 in or more below the surface. Packer 230 may be located at a depth above 1000 in if desired. Packer 230 may inhibit formation fluid from flowing from the heated portion of the formation up the wellbore to wellhead 226. Packer 230 may allow movement of insulating sleeve portion 224" downwards to accommodate thermal expansion of heater 200.
[0106] In some embodiments, wellhead 226 includes fixed seal 232. Fixed seal 232 may be a second seal that inhibits formation fluid from reaching the surface through wellbore 222 of heater 200.
[0107] FIG. 5 depicts a schematic representation of another embodiment of a portion of vertical heater 200 in wellbore 222. The embodiment depicted in FIG. 5 is similar to the embodiment depicted in FIG. 4, but fixed seal 232 is located adjacent to overburden 218, and sliding seal 234 is located in wellhead 226. The portion of insulating sleeve 224' from fixed seal 232 to wellhead 226 is able to expand upward out of the wellhead to accommodate thermal expansion. The portion of heater located below fixed seal 232 is able to expand into the excess length of wellbore 222 to accommodate thermal expansion.
[0108] In some embodiments, the heater includes a flow switcher. The flow switcher may allow the heat transfer fluid from the circulation system to flow down through the overburden in the inlet conduit of the heater. The return flow from the heater may flow upwards through the annular region between the inlet conduit and the outlet conduit. The flow switcher may change the downward flow from the inlet conduit to the annular region between the outlet conduit and the inlet conduit. The flow switcher may also change the upward flow from the inlet conduit to the annular region. The use of the flow switcher may allow the heater to operate at a higher temperature adjacent to the treatment area without increasing the initial temperature of the heat transfer fluid provided to the heaters.
[0109] For vertical, slanted, or L-shaped heaters where the flow of heat transfer fluid is directed down the inlet conduit and returns through the annular region between the inlet conduit and the outlet conduit, a temperature gradient may form in the heater with the hottest portion being located at a distal end of the heater. For L-shaped heaters, horizontal portions of a set of first heaters may be alternated with the horizontal portions of a second set of heaters. The hottest portions used to heat the formation of the first set of heaters may be adjacent to the coldest portions used to heat the formation of the second set of heaters, while the hottest portions used to heat the formation of the second set of heaters are adjacent to the coldest portions used to heat the formation of the first set of heaters. For vertical or slanted heaters, flow switchers in selected heaters may allow the heaters to be arranged with the hottest portions used to heat the formation of first heaters adjacent to coldest portions used to heat the formation of second heaters. Having hottest portions used to heat the formation of the first set of heaters adjacent to coldest portions used to heat the formation of the second set of heaters may allow for more uniform heating of the formation.
[0110] In some embodiments, the diameter of the conduit through which the heat transfer fluid flows in overburden 218 may be smaller than the diameter of the conduit through the treatment area. For example, the diameter of the pipe in the overburden may be about 3 inches (about 7.6 cm), and the diameter of the pipe adjacent to the treatment area may be about 5 inches (about 12.7 cm). The smaller diameter pipe through overburden 218 may reduce heat loss from the heat transfer fluid to the overburden. Reducing heat loss to overburden 218 reduces cooling of the heat transfer fluid supplied to the conduit adjacent to hydrocarbon layer 220. In certain embodiments, any increased heat loss in the smaller diameter pipe due to increased velocity of the heat transfer fluid through the smaller diameter pipe is offset by the smaller surface area of the smaller diameter pipe and the decrease in residence time of the heat transfer fluid in the smaller diameter pipe.
[0111] Heat transfer fluid from heat supply 204 of heat transfer fluid circulation system 202 passes through overburden 218 of formation 212 to hydrocarbon layer 220.
In certain embodiments, portions of heaters 200 extending through overburden 218 are insulated. In some embodiments, the insulation or part of the insulation is a polyimide insulating material. In some embodiments, inlet portions of heaters 200 in hydrocarbon layer 220 have tapering insulation to reduce overheating of the hydrocarbon layer near the inlet of the heater into the hydrocarbon layer.
In certain embodiments, portions of heaters 200 extending through overburden 218 are insulated. In some embodiments, the insulation or part of the insulation is a polyimide insulating material. In some embodiments, inlet portions of heaters 200 in hydrocarbon layer 220 have tapering insulation to reduce overheating of the hydrocarbon layer near the inlet of the heater into the hydrocarbon layer.
[0112] The overburden section of heaters 200 may be insulated to prevent or inhibit heat loss into non-hydrocarbon bearing zones of the formation. In some embodiments, thermal insulation is provided by a conduit-in-conduit design. The heat transfer fluid flows through the inner conduit. Insulation fills the space between the inner conduit and the outer conduit. An effective insulation may be a combination of metal foil to inhibit radiative heat loss and microporous silica powder to inhibit conductive heat loss.
Reducing the pressure in the space between the inner conduit and the outer conduit by pulling a vacuum during assembly and/or with getters may further reduce heat losses when using the conduit-in-conduit design. To account for the differential thermal expansion of the inner conduit and the outer conduit, the inner conduit may be pre-stressed or made of a material with low thermal expansion (for example, Invar alloys). The insulated conduit-in-conduit may be installed continuously in conjunction with coiled tubing installation.
Insulated conduit-in-conduit systems may be available from Industrial Thermo Polymers Limited (Ontario, Canada) and Oil Tech Services, Inc. (Houston, Texas, U.S.A.). Other effective insulation materials include, but are not limited to, ceramic blankets, foam cements, cements with low thermal conductivity aggregates (such as vermiculite), IzoflexTM insulation, and aerogel/glass-fiber composites such as those provided by Aspen Aerogels, Inc.
(Northborough, Massachusetts, U.S.A.).
Reducing the pressure in the space between the inner conduit and the outer conduit by pulling a vacuum during assembly and/or with getters may further reduce heat losses when using the conduit-in-conduit design. To account for the differential thermal expansion of the inner conduit and the outer conduit, the inner conduit may be pre-stressed or made of a material with low thermal expansion (for example, Invar alloys). The insulated conduit-in-conduit may be installed continuously in conjunction with coiled tubing installation.
Insulated conduit-in-conduit systems may be available from Industrial Thermo Polymers Limited (Ontario, Canada) and Oil Tech Services, Inc. (Houston, Texas, U.S.A.). Other effective insulation materials include, but are not limited to, ceramic blankets, foam cements, cements with low thermal conductivity aggregates (such as vermiculite), IzoflexTM insulation, and aerogel/glass-fiber composites such as those provided by Aspen Aerogels, Inc.
(Northborough, Massachusetts, U.S.A.).
[0113] FIG. 6 depicts a cross-sectional view of an embodiment of overburden insulation.
Insulating cement 236 may be placed between casing 238 and formation 212.
Insulating cement 236 may also be placed between heat transfer fluid conduit 240 and casing 238.
Insulating cement 236 may be placed between casing 238 and formation 212.
Insulating cement 236 may also be placed between heat transfer fluid conduit 240 and casing 238.
[0114] FIG. 7 depicts a cross-sectional view of an alternate embodiment of overburden insulation that includes insulating sleeve 224 around heat transfer fluid conduit 240.
Insulating sleeve 224 may include, for example, an aerogel. Gap 242 may be located between insulating sleeve 224 and casing 238. The emissivities of insulating sleeve 224 and casing 238 may be low to inhibit radiative heat transfer in gas 242. A non-reactive gas may be placed in gap 242 between insulating sleeve 224 and casing 238. Gas in gap 242 may inhibit conductive heat transfer between insulating sleeve 224 and casing 238. In some embodiments, a vacuum may be drawn and maintained in gap 242. Insulating cement 236 may be placed between casing 238 and formation 212. In some embodiments, insulating sleeve 224 has a significantly smaller thermal conductivity value than the thermal conductivity value of insulating cement. In certain embodiments, the insulation provided by the insulation depicted in FIG. 7 may be better than the insulation provided by the insulation depicted in FIG. 6.
Insulating sleeve 224 may include, for example, an aerogel. Gap 242 may be located between insulating sleeve 224 and casing 238. The emissivities of insulating sleeve 224 and casing 238 may be low to inhibit radiative heat transfer in gas 242. A non-reactive gas may be placed in gap 242 between insulating sleeve 224 and casing 238. Gas in gap 242 may inhibit conductive heat transfer between insulating sleeve 224 and casing 238. In some embodiments, a vacuum may be drawn and maintained in gap 242. Insulating cement 236 may be placed between casing 238 and formation 212. In some embodiments, insulating sleeve 224 has a significantly smaller thermal conductivity value than the thermal conductivity value of insulating cement. In certain embodiments, the insulation provided by the insulation depicted in FIG. 7 may be better than the insulation provided by the insulation depicted in FIG. 6.
[0115] FIG. 8 depicts a cross-sectional view of an alternative embodiment of overburden insulation with insulating sleeve 224 around heat transfer fluid conduit 240, vacuum gap 244 between the insulating sleeve and conduit 246, and gap 242 between the conduit and casing 238. Insulating cement 236 may be placed between casing 238 and formation 212.
A non-reactive gas may be placed in gap 242 between conduit 246 and casing 238. In some embodiments, a vacuum may be drawn and maintained in gap 242. A vacuum may be drawn and maintained in vacuum gap 244 between insulating sleeve 224 and conduit 246. Insulating sleeve 224 may include layers of insulating material separated by foil 248.
The insulation material may be, for example, aerogel. The layers of insulating material separated by foil 248 may provide substantial insulation around heat transfer fluid conduit 240. Vacuum gap 244 may inhibit radiative, convective, and/or conductive heat transfer between insulating sleeve 224 and conduit 246. A non-reactive gas may be placed in gap 242. The emissivities of conduit 246 and casing 238 may be low to inhibit radiative heat transfer between the conduit and the casing. In certain embodiments, the insulation provided by the insulation depicted in FIG. 8 may be better than the insulation provided by the insulation depicted in FIG. 7.
A non-reactive gas may be placed in gap 242 between conduit 246 and casing 238. In some embodiments, a vacuum may be drawn and maintained in gap 242. A vacuum may be drawn and maintained in vacuum gap 244 between insulating sleeve 224 and conduit 246. Insulating sleeve 224 may include layers of insulating material separated by foil 248.
The insulation material may be, for example, aerogel. The layers of insulating material separated by foil 248 may provide substantial insulation around heat transfer fluid conduit 240. Vacuum gap 244 may inhibit radiative, convective, and/or conductive heat transfer between insulating sleeve 224 and conduit 246. A non-reactive gas may be placed in gap 242. The emissivities of conduit 246 and casing 238 may be low to inhibit radiative heat transfer between the conduit and the casing. In certain embodiments, the insulation provided by the insulation depicted in FIG. 8 may be better than the insulation provided by the insulation depicted in FIG. 7.
[0116] When heat transfer fluid is circulated through piping in the formation to heat the formation, the heat of the heat transfer fluid may cause changes in the piping. The heat in the piping may reduce the strength of the piping since Young's modulus and other strength characteristics vary with temperature. The high temperatures in the piping may raise creep concerns, may cause buckling conditions, and may move the piping from the elastic deformation region to the plastic deformation region.
[0117] Heating the piping may cause thermal expansion of the piping. For long heaters placed in the wellbore, the piping may expand 20 m or more. In some embodiments, the horizontal portion of the piping is cemented in the formation with thermally conductive cement. Care may need to be taken to ensure that there are no significant gaps in the cement to inhibit expansion of the piping into the gaps and possible failure.
Thermal expansion of the piping may cause ripples in the pipe and/or an increase in the wall thickness of the pipe.
Thermal expansion of the piping may cause ripples in the pipe and/or an increase in the wall thickness of the pipe.
[0118] For long heaters with gradual bend radii (for example, about 10 of bend per 30 m), thermal expansion of the piping may be accommodated in the overburden or at the surface of the formation. After thermal expansion is completed, the position of the heaters relative to the wellheads may be secured. When heating is finished and the formation is cooled, the position of the heaters may be unsecured so that thermal contraction of the heaters does not destroy the heaters.
[0119] FIGS. 9-19 depict schematic representations of various methods for accommodating thermal expansion. In some embodiments, change in length of the heater due to thermal expansion may be accommodated above the wellhead. After substantial changes in the length of the heater due to thermal expansion cease, the heater position relative to the wellhead may be fixed. The heater position relative to the wellhead may remain fixed until the end of heating of the formation. After heating is ended, the position of the heater relative to the wellhead may be freed (unfixed) to accommodate thermal contraction of the heater as the heater cools.
[0120] FIG. 9 depicts a representation of bellows 250. Length L of bellows 250 may change to accommodate thermal expansion and/or contraction of piping 252.
Bellows 250 may be located subsurface or above the surface. In some embodiments, bellows includes a fluid that transfers heat out of the wellhead.
Bellows 250 may be located subsurface or above the surface. In some embodiments, bellows includes a fluid that transfers heat out of the wellhead.
[0121] FIG. 10A depicts a representation of piping 252 with expansion loop 254 above wellhead 226 for accommodating thermal expansion. Sliding seals in wellhead 226, stuffing boxes, or other pressure control equipment of the wellhead allow piping 252 to move relative to casing 238. Expansion of piping 252 is accommodated in expansion loop 254. In some embodiments, two or more expansion loops 254 are used to accommodate expansion of piping 252.
[0122] FIG. lOB depicts a representation of piping 252 with coiled or spooled piping 256 above wellhead 226 for accommodating thermal expansion. Sliding seals in wellhead 226, stuffing boxes, or other pressure control equipment of the wellhead allow piping 252 to move relative to casing 238. Expansion of piping 252 is accommodated in coiled piping 256. In some embodiments, expansion is accommodated by coiling the portion of the heater exiting the formation on a spool using a coiled tubing rig.
[0123] In some embodiments, coiled piping 256 may be enclosed in insulated volume 258, as shown in FIG. I OC. Enclosing coiled piping 256 in insulated volume 258 may reduce heat loss from the coiled piping and fluids inside the coiled piping. In some embodiments, coiled piping 256 has a diameter between 2' (about 0.6 m) and 4' (about 1.2 m) to accommodate up to about 30' (about 9.1 m) of expansion in piping 252.
[0124] FIG. 11 depicts a portion of piping 252 in overburden 218 after thermal expansion of the piping has occurred. Casing 23 8 has a large diameter to accommodate buckling of piping 252. Insulating cement 236 may be between overburden 218 and casing 238.
Thermal expansion of piping 252 causes helical or sinusoidal buckling of the piping. The helical or sinusoidal buckling of piping 252 accommodates the thermal expansion of the piping, including the horizontal piping adjacent to the treatment area being heated. As depicted in FIG. 12, piping 252 may be more than one conduit positioned in large diameter casing 238. Having piping 252 as multiple conduits allows for accommodation of thermal expansion of all of the piping in the formation without increasing the pressure drop of the fluid flowing through piping in overburden 218.
Thermal expansion of piping 252 causes helical or sinusoidal buckling of the piping. The helical or sinusoidal buckling of piping 252 accommodates the thermal expansion of the piping, including the horizontal piping adjacent to the treatment area being heated. As depicted in FIG. 12, piping 252 may be more than one conduit positioned in large diameter casing 238. Having piping 252 as multiple conduits allows for accommodation of thermal expansion of all of the piping in the formation without increasing the pressure drop of the fluid flowing through piping in overburden 218.
[0125] In some embodiments, thermal expansion of subsurface piping is translated up to the wellhead. Expansion may be accommodated by one or more sliding seals at the wellhead. The seals may include Grafoil gaskets, Stellite gaskets, and/or Nitronic gaskets. In some embodiments, the seals include seals available from BST Lift Systems, Inc. (Ventura, California, U.S.A.).
[0126] FIG. 13 depicts a representation of wellhead 226 with sliding seal 234.
Wellhead 226 may include a stuffing box and/or other pressure control equipment.
Circulated fluid may pass through conduit 240. Conduit 240 may be at least partially surrounded by insulated conduit 224. The use of insulated conduit 224 may obviate the need for a high temperature sliding seal and the need to seal against the heat transfer fluid.
Expansion of conduit 240 may be handled at the surface with expansion loops, bellows, coiled or spooled pipe, and/or sliding joints. In some embodiments, packers 260 between insulated conduit 224 and casing 238 seal the wellbore against formation pressure and hold gas for additional insulation. Packers 260 may be inflatable packers and/or polished bore receptacles. In certain embodiments, packers 260 are operable up to temperatures of about 600 C. In some embodiments, packers 260 include seals available from BST Lift Systems, Inc.
(Ventura, California, U.S.A.).
Wellhead 226 may include a stuffing box and/or other pressure control equipment.
Circulated fluid may pass through conduit 240. Conduit 240 may be at least partially surrounded by insulated conduit 224. The use of insulated conduit 224 may obviate the need for a high temperature sliding seal and the need to seal against the heat transfer fluid.
Expansion of conduit 240 may be handled at the surface with expansion loops, bellows, coiled or spooled pipe, and/or sliding joints. In some embodiments, packers 260 between insulated conduit 224 and casing 238 seal the wellbore against formation pressure and hold gas for additional insulation. Packers 260 may be inflatable packers and/or polished bore receptacles. In certain embodiments, packers 260 are operable up to temperatures of about 600 C. In some embodiments, packers 260 include seals available from BST Lift Systems, Inc.
(Ventura, California, U.S.A.).
[0127] In some embodiments, thermal expansion of subsurface piping is handled at the surface with a slip joint that allows the heat transfer fluid conduit to expand out of the formation to accommodate the thermal expansion. Hot heat transfer fluid may pass from a fixed conduit into the heat transfer fluid conduit in the formation. Return heat transfer fluid from the formation may pass from the heat transfer fluid conduit into the fixed conduit. A sliding seal between the fixed conduit and the piping in the formation, and a sliding seal between the wellhead and the piping in the formation, may accommodate expansion of the heat transfer fluid conduit as the slip joint.
[0128] FIG. 14 depicts a representation of a system where heat transfer fluid in conduit 240 is transferred to or from fixed conduit 262. Insulating sleeve 224 may surround conduit 240. Sliding seal 234 may be between insulated sleeve 224 and wellhead 226.
Packers between insulating sleeve 224 and casing 238 may seal the wellbore against formation pressure. Heat transfer fluid seals 264 may be positioned between a portion of fixed conduit 262 and conduit 240. Heat transfer fluid seals 264 may be secured to fixed conduit 262. The resulting slip joint allows insulating sleeve 224 and conduit 240 to move relative to wellhead 226 to accommodate thermal expansion of the piping positioned in the formation. Conduit 240 is also able to move relative to fixed conduit 262 in order to accommodate thermal expansion. Heat transfer fluid seals 264 may be uninsulated and spatially separated from the flowing heat transfer fluid to maintain the heat transfer fluid seals at relatively low temperatures.
Packers between insulating sleeve 224 and casing 238 may seal the wellbore against formation pressure. Heat transfer fluid seals 264 may be positioned between a portion of fixed conduit 262 and conduit 240. Heat transfer fluid seals 264 may be secured to fixed conduit 262. The resulting slip joint allows insulating sleeve 224 and conduit 240 to move relative to wellhead 226 to accommodate thermal expansion of the piping positioned in the formation. Conduit 240 is also able to move relative to fixed conduit 262 in order to accommodate thermal expansion. Heat transfer fluid seals 264 may be uninsulated and spatially separated from the flowing heat transfer fluid to maintain the heat transfer fluid seals at relatively low temperatures.
[0129] In some embodiments, thermal expansion is handled at the surface with a slip joint where the heat transfer fluid conduit is free to move and the fixed conduit is part of the wellhead. FIG. 15 depicts a representation of a system where fixed conduit 262 is secured to wellhead 226. Fixed conduit 262 may include insulating sleeve 224. Heat transfer fluid seals 264 may be coupled to an upper portion of conduit 240. Heat transfer fluid seals 264 may be uninsulated and spatially separated from the flowing heat transfer fluid to maintain the heat transfer fluid seals at relatively low temperatures. Conduit 240 is able to move relative to fixed conduit 262 without the need for a sliding seal in wellhead 226.
[0130] FIG. 16 depicts an embodiment of seals 264. Seals 264 may include seal stack 266 attached to packer body 268. Packer body 268 may be coupled to conduit 240 using packer setting slips 270 and packer insulation seal 272. Seal stack 266 may engage polished portion 274 of conduit 262. In some embodiments, cam rollers 276 are used to provide support to seal stack 266. For example, if side loads are too large for the seal stack. In some embodiments, wipers 278 are coupled to packer body 268. Wipers may be used to clean polished portion 274 as conduit 262 is inserted through seal 264.
Wipers 278 may be placed on the upper side of seals 264, if needed. In some embodiments, seal stack 266 is loaded for better contact using a bow spring or other preloaded means to enhance compression of the seals.
Wipers 278 may be placed on the upper side of seals 264, if needed. In some embodiments, seal stack 266 is loaded for better contact using a bow spring or other preloaded means to enhance compression of the seals.
[0131] In some embodiments, seals 264 and conduit 262 are run together into conduit 240.
Locking mechanisms such as mandrels may be used to secure the seals and the conduits in place. FIG. 17 depicts an embodiment of seals 264, conduit 240, and conduit 262 secured in place with locking mechanisms 280. Locking mechanisms 280 include insulation seals 282 and locking slips 284. Locking mechanisms 280 may be activated as seals 264 and conduit 262 enter into conduit 240.
Locking mechanisms such as mandrels may be used to secure the seals and the conduits in place. FIG. 17 depicts an embodiment of seals 264, conduit 240, and conduit 262 secured in place with locking mechanisms 280. Locking mechanisms 280 include insulation seals 282 and locking slips 284. Locking mechanisms 280 may be activated as seals 264 and conduit 262 enter into conduit 240.
[0132] As locking mechanisms 280 engage a selected portion of conduit 240, springs in the locking mechanisms are activated and open and expose insulations seals 282 against the surface of conduit 240 just above locking slips 284. Locking mechanisms 280 allow insulations seals 282 to be retracted as the assembly is moved into conduit 240. The insulation seals are opened and exposed when the profile of conduit 240 activates the locking mechanisms.
[0133] Pins 286 secure locking mechanisms 280, seals 264, conduit 240, and conduit 262 in place. In certain embodiments, pins 286 unlock the assembly after a selected temperature to allow movement (travel) of the conduits. For example, pins 286 may be made of materials that thermally degrade (for example, melt) above a desired temperature.
[0134] In some embodiments, locking mechanisms 280 are set in place using soft metal seals (for example, soft metal friction seals commonly used to set rod pumps in thermal wells). FIG. 18 depicts an embodiment with locking mechanisms 280 set in place using soft metal seals 288. Soft metal seals 288 work by collapsing against a reduction in the inner diameter of conduit 240. Using metal seals may increase the lifetime of the assembly versus using elastomeric seals.
[0135] In certain embodiments, lift systems are coupled to the piping of a heater that extends out of the formation. The lift systems may lift portions of the heater out of the formation to accommodate thermal expansion. FIG. 19 depicts a representation of u-shaped wellbore 222 with heater 200 positioned in the wellbore. Wellbore 222 may include casings 238 and lower seals 290. Heater 200 may include insulated portions 292 with heater portion 294 adjacent to treatment area 300. Moving seals 264 may be coupled to an upper portion of heater 200. Lifting systems 296 may be coupled to insulated portions 292 above wellheads 226. A non-reactive gas (for example, nitrogen and/or carbon dioxide) may be introduced in subsurface annular region 298 between casings 238 and insulated portions 292 to inhibit gaseous formation fluid from rising to wellhead 226 and to provide an insulating gas blanket. Insulated portions 292 may be conduit-in-conduits with the heat transfer fluid of the circulation system flowing through the inner conduit. The outer conduit of each insulated portion 292 may be at a substantially lower temperature than the inner conduit. The lower temperature of the outer conduit allows the outer conduits to be used as load bearing members for lifting heater 200.
Differential expansion between the outer conduit and the inner conduit may be mitigated by internal bellows and/or by sliding seals.
Differential expansion between the outer conduit and the inner conduit may be mitigated by internal bellows and/or by sliding seals.
[0136] Lifting systems 296 may include hydraulic lifters, powered coiled tubing rigs, and/or counterweight systems capable of supporting heater 200 and moving insulated portions 292 into or out of the formation. When lifting systems 296 include hydraulic lifters, the outer conduits of insulated portions 292 may be kept cool at the hydraulic lifters by dedicated slick transition joints. The hydraulic lifters may include two sets of slips. A
first set of slips may be coupled to the heater. The hydraulic lifters may maintain a constant pressure against the heater for the full stroke of the hydraulic cylinder. A second set of slips may periodically be set against the outer conduit while the stroke of the hydraulic cylinder is reset. Lifting systems 296 may also include strain gauges and control systems. The strain gauges may be attached to the outer conduit of insulated portions 292, or the strain gauges may be attached to the inner conduits of the insulated portions below the insulation. Attaching the strain gauges to the outer conduit may be easier and the attachment coupling may be more reliable.
first set of slips may be coupled to the heater. The hydraulic lifters may maintain a constant pressure against the heater for the full stroke of the hydraulic cylinder. A second set of slips may periodically be set against the outer conduit while the stroke of the hydraulic cylinder is reset. Lifting systems 296 may also include strain gauges and control systems. The strain gauges may be attached to the outer conduit of insulated portions 292, or the strain gauges may be attached to the inner conduits of the insulated portions below the insulation. Attaching the strain gauges to the outer conduit may be easier and the attachment coupling may be more reliable.
[0137] Before heating begins, set points for the control systems may be established by using lifting systems 296 to lift heater 200 such that portions of the heater contact casing 238 in the bend portions of wellbore 222. The strain when heater 200 is lifted may be used as the set point for the control system. In other embodiments, the set point is chosen in a different manner. When heating begins, heater portion 294 will begin expanding and some of the heater section will advance horizontally. If the expansion forces portions of heater 200 against casing 23 8, the weight of the heater will be supported at the contact points of insulated portions 292 and the casing. The strain measured by lifting system 296 will go towards zero. Additional thermal expansion may cause heater 200 to buckle and fail.
Instead of allowing heater 200 to press against casing 238, hydraulic lifters of lifting systems 296 may move sections of insulated portions 292 upwards and out of the formation to keep the heater against the top of the casing. The control systems of lifting systems 296 may lift heater 200 to maintain the strain measured by the strain gauges near the set point value. Lifting system 296 may also be used to reintroduce insulated portions 292 into the formation when the formation cools to avoid damage to heater 200 during thermal contraction.
Instead of allowing heater 200 to press against casing 238, hydraulic lifters of lifting systems 296 may move sections of insulated portions 292 upwards and out of the formation to keep the heater against the top of the casing. The control systems of lifting systems 296 may lift heater 200 to maintain the strain measured by the strain gauges near the set point value. Lifting system 296 may also be used to reintroduce insulated portions 292 into the formation when the formation cools to avoid damage to heater 200 during thermal contraction.
[0138] In certain embodiments, thermal expansion of the heater is completed in a relatively short time frame. In some embodiments, the position of the heater is fixed relative to the wellbore after thermal expansion is completed. The lifting systems may be removed from the heaters and used on other heaters that have not yet been heated. Lifting systems may be reattached to the heaters when the formation is cooled to accommodate thermal contraction of the heaters.
[0139] In some embodiments, the lifting systems are controlled based on the hydraulic pressure of the lifters. Changes in the tension of the pipe may result in a change in the hydraulic pressure. The control system may maintain the hydraulic pressure substantially at a set hydraulic pressure to provide accommodation of thermal expansion of the heater in the formation.
[0140] In certain embodiments, the circulation system uses a liquid to heat the formation.
The use of liquid heat transfer fluid may allow for high overall energy efficiency for the system as compared to electrical heating or gas heaters due to the high energy efficiency of heat supplies used to heat the liquid heat transfer fluid. If furnaces are used to heat the liquid heat transfer fluid, the carbon dioxide footprint of the process may be reduced as compared to electrically heating or using gas burners positioned in wellbores due to the efficiencies of the furnaces. If nuclear power is used to heat the liquid heat transfer fluid, the carbon dioxide footprint of the process may be significantly reduced or even eliminated. The surface facilities for the heating system may be formed from commonly available industrial equipment in simple layouts. Commonly available equipment in simple layouts may increase the overall reliability of the system.
The use of liquid heat transfer fluid may allow for high overall energy efficiency for the system as compared to electrical heating or gas heaters due to the high energy efficiency of heat supplies used to heat the liquid heat transfer fluid. If furnaces are used to heat the liquid heat transfer fluid, the carbon dioxide footprint of the process may be reduced as compared to electrically heating or using gas burners positioned in wellbores due to the efficiencies of the furnaces. If nuclear power is used to heat the liquid heat transfer fluid, the carbon dioxide footprint of the process may be significantly reduced or even eliminated. The surface facilities for the heating system may be formed from commonly available industrial equipment in simple layouts. Commonly available equipment in simple layouts may increase the overall reliability of the system.
[0141] In certain embodiments, the liquid heat transfer fluid is a molten salt or other liquid that has the potential to solidify if the temperature is below a selected temperature. A
secondary heating system may be needed to ensure that heat transfer fluid remains in liquid form and that the heat transfer fluid is at a temperature that allows the heat transfer fluid to flow through the heaters from the circulation system. In certain embodiments, the secondary heating system heats the heater and/or the heat transfer fluid to a temperature that is sufficient to melt and ensure flowability of the heat transfer fluid instead of heating to a higher temperature. The secondary heating system may only be needed for a short period of time during startup and/or re-startup of the fluid circulation system. In some embodiments, the secondary heating system is removable from the heater. In some embodiments, the secondary heating system does not have an expected lifetime on the order of the life of the heater.
secondary heating system may be needed to ensure that heat transfer fluid remains in liquid form and that the heat transfer fluid is at a temperature that allows the heat transfer fluid to flow through the heaters from the circulation system. In certain embodiments, the secondary heating system heats the heater and/or the heat transfer fluid to a temperature that is sufficient to melt and ensure flowability of the heat transfer fluid instead of heating to a higher temperature. The secondary heating system may only be needed for a short period of time during startup and/or re-startup of the fluid circulation system. In some embodiments, the secondary heating system is removable from the heater. In some embodiments, the secondary heating system does not have an expected lifetime on the order of the life of the heater.
[0142] In certain embodiments, molten salt is used as the heat transfer fluid.
Insulated return storage tanks receive return molten salt from the formation.
Temperatures in the return storage tanks may be, for example, in the vicinity of about 350 C.
Pumps may move the molten salt from the return storage tanks to furnaces. Each of the pumps may need to move between 4 kg/s and 30 kg/s of the molten salt. Each furnace may provide heat to the molten salt. Exit temperatures of the molten salt from the furnaces may be about 550 C. The molten salt may pass from the furnaces to insulated feed storage tanks through piping. Each feed storage stank may supply molten salt to, for example, 50 or more piping systems that enter into the formation. The molten salt flows through the formation and to the return storage tanks. In certain embodiments, the furnaces have efficiencies that are 90% or greater. In certain embodiments, heat loss to the overburden is 8% or less.
Insulated return storage tanks receive return molten salt from the formation.
Temperatures in the return storage tanks may be, for example, in the vicinity of about 350 C.
Pumps may move the molten salt from the return storage tanks to furnaces. Each of the pumps may need to move between 4 kg/s and 30 kg/s of the molten salt. Each furnace may provide heat to the molten salt. Exit temperatures of the molten salt from the furnaces may be about 550 C. The molten salt may pass from the furnaces to insulated feed storage tanks through piping. Each feed storage stank may supply molten salt to, for example, 50 or more piping systems that enter into the formation. The molten salt flows through the formation and to the return storage tanks. In certain embodiments, the furnaces have efficiencies that are 90% or greater. In certain embodiments, heat loss to the overburden is 8% or less.
[0143] In some embodiments, the heaters for the circulation systems include insulation along the lengths of the heaters, including portions of the heaters that are used to heat the treatment area. The insulation may facilitate insertion of the heaters into the formation.
The insulation adjacent to portions used to heat the treatment area maybe sufficient to provide insulation during preheating, but may decompose at temperatures produced by steady state circulation of the heat transfer fluid. In some embodiments, the insulation layer changes the emissivity of the heater to inhibit radiative heat transfer from the heater.
After decomposition of the insulation, the emissivity of the heater may promote radiative heat transfer to the treatment area. The insulation may reduce the time needed to raise the temperature of the heaters and/or the heat transfer fluid in the heaters to temperatures sufficient to ensure melt and flowability of the heat transfer fluid. In some embodiments, the insulation adjacent to portions of the heaters that will heat the treatment area may include polymer coatings. In certain embodiments, insulation of portions of the heaters adjacent to the overburden is different than the insulation of the heaters adjacent to the portions of the heaters used to heat the treatment area. The insulation of the heaters adjacent to the overburden may have an expected lifetime equal to or greater than the lifetime of the heaters.
The insulation adjacent to portions used to heat the treatment area maybe sufficient to provide insulation during preheating, but may decompose at temperatures produced by steady state circulation of the heat transfer fluid. In some embodiments, the insulation layer changes the emissivity of the heater to inhibit radiative heat transfer from the heater.
After decomposition of the insulation, the emissivity of the heater may promote radiative heat transfer to the treatment area. The insulation may reduce the time needed to raise the temperature of the heaters and/or the heat transfer fluid in the heaters to temperatures sufficient to ensure melt and flowability of the heat transfer fluid. In some embodiments, the insulation adjacent to portions of the heaters that will heat the treatment area may include polymer coatings. In certain embodiments, insulation of portions of the heaters adjacent to the overburden is different than the insulation of the heaters adjacent to the portions of the heaters used to heat the treatment area. The insulation of the heaters adjacent to the overburden may have an expected lifetime equal to or greater than the lifetime of the heaters.
[0144] In some embodiments, degradable insulation material (for example, a polymer foam) may be introduced into the wellbore after or during placement of the heater. The degradable insulation may provide insulation adjacent to the portions of the heaters used to heat the treatment area during preheating. The liquid heat transfer fluid used to heat the treatment area may raise the temperature of the heater sufficiently enough to degrade and eliminate the insulation layer.
[0145] In some embodiments of circulation systems that use molten salt or another liquid as the heat transfer fluid, the heater may be a single conduit in the formation. The conduit may be preheated to a temperature sufficient to ensure flowability of the heat transfer fluid.
In some embodiments, a secondary heat transfer fluid is circulated through the conduit to preheat the conduit and/or the formation adjacent to the conduit. After the temperature of the conduit and/or the formation adjacent to the conduit is sufficiently hot, the secondary fluid may be flushed from the conduit and the heat transfer fluid may be circulated through the pipe.
In some embodiments, a secondary heat transfer fluid is circulated through the conduit to preheat the conduit and/or the formation adjacent to the conduit. After the temperature of the conduit and/or the formation adjacent to the conduit is sufficiently hot, the secondary fluid may be flushed from the conduit and the heat transfer fluid may be circulated through the pipe.
[0146] In some embodiments, aqueous solutions of the salt composition (for example, Li:Na:K:N03) that is to be used as the heat transfer fluid are used to preheat the conduit. A
temperature of the secondary heat transfer fluid may be below or equal to a temperature of a subsurface outlet of the wellhead.
temperature of the secondary heat transfer fluid may be below or equal to a temperature of a subsurface outlet of the wellhead.
[0147] In some embodiments, the secondary heat transfer fluid (for example, water) is heated to a temperature ranging from 0 C to about 95 C or up to the boiling point of the secondary heat transfer fluid. The salt composition may be added to the secondary heat transfer fluid while in a storage tank of the circulation systems. The composition of the salt and/or the pressure of the system may be adjusted to inhibit boiling of the aqueous solution as the temperature is increased. When the conduit is preheated to a temperature sufficient to ensure flowability of the molten salt, the remaining water may be removed from the aqueous solution to leave only the molten salt. The water may be removed by evaporation while the salt solution is in a storage tank of the circulation system. In some embodiments, the temperature of the molten salt solution is raised to above 100 C. When the conduit is preheated to a temperature sufficient to ensure flowability of the molten salt, substantially or all of the remaining secondary heat transfer fluid (for example, water) may be removed from the salt solution to leave only the molten salt. In some embodiments, the temperature of the molten salt solution during the evaporation process ranges from 100 C
to 250 C.
to 250 C.
[0148] Upon completion of the in situ heat treatment process, the molten salt may be cooled and water added to the salt to form another aqueous solution. The aqueous solution may be transferred to another treatment area and the process continued. Use of tertiary molten salts as aqueous solutions facilitates transportation of the solution and allows more than one section of a formation to be treated with the same salt.
[0149] In some embodiments of circulation systems that use molten salt or other liquid as the heat transfer fluid, the heater may have a conduit-in-conduit configuration. The liquid heat transfer fluid used to heat the formation may flow through a first passageway through the heater. A secondary heat transfer fluid may flow through a second passageway through the conduit-in-conduit heater for preheating and/or for flow assurance of the liquid heat transfer fluid. After the heater is raised to a temperature sufficient to ensure continued flow of heat transfer fluid through the heater, a vacuum may be drawn on the passageway for the secondary heat transfer fluid to inhibit heat transfer from the first passageway to the second passageway. In some embodiments, the passageway for the secondary heat transfer fluid is filled with insulating material and/or is otherwise blocked. The passageways in the conduit of the conduit-in-conduit heater may include the inner conduit and the annular region between the inner conduit and the outer conduit. In some embodiments, one or more flow switchers are used to change the flow in the conduit-in-conduit heater from the inner conduit to the annular region and/or vice versa.
[0150] FIG. 20 depicts a cross-sectional view of an embodiment of conduit-in-conduit heater 200 for a heat transfer circulation heating system adjacent to treatment area 300.
Heater 200 may be positioned in wellbore 222. Heater 200 may include outer conduit 304 and inner conduit 306. During normal operation of heater 200, liquid heat transfer fluid may flow through annular region 308 between outer conduit 304 and inner conduit 306.
During normal operation, fluid flow through inner conduit 306 may not be needed.
Heater 200 may be positioned in wellbore 222. Heater 200 may include outer conduit 304 and inner conduit 306. During normal operation of heater 200, liquid heat transfer fluid may flow through annular region 308 between outer conduit 304 and inner conduit 306.
During normal operation, fluid flow through inner conduit 306 may not be needed.
[0151] During preheating and/or for flow assurance, a secondary heat transfer fluid may flow through inner conduit 306. The secondary fluid may be, but is not limited to, air, carbon dioxide, exhaust gas, and/or a natural or synthetic oil (for example, DowTherm A, Syltherm, or Therminol 59), room temperature molten salts (for example, NaC12-SrC12, VC14, SnC14, or TiC14), high pressure liquid water, steam, or room temperature molten metal alloys (for example, a K-Na eutectic or a Ga-In-Sn eutectic). In some embodiments, outer conduit 304 is heated by the secondary heat transfer fluid flowing through annular region 308 (for example, carbon dioxide or exhaust gas) before the heat transfer fluid that is used to heat the formation is introduced into the annular region. If exhaust gas or other high temperature fluid is used, another heat transfer fluid (for example, water or steam) may be passed through the heater to reduce the temperature below the upper working temperature limit of the liquid heat transfer fluid. The secondary heat transfer fluid may be displaced from the annular region when the liquid heat transfer fluid is introduced into the heater. The secondary heat transfer fluid in inner conduit 306 may be the same fluid or a different fluid than the secondary fluid used to preheat outer conduit 304 during preheating.
Using two different secondary heat transfer fluids may help in the identification of integrity problems in heater 200. Any integrity problems may be identified and fixed before the use of the molten salt is initiated.
Using two different secondary heat transfer fluids may help in the identification of integrity problems in heater 200. Any integrity problems may be identified and fixed before the use of the molten salt is initiated.
[0152] In some embodiments, the secondary heat transfer fluid that flows through annular region 308 during preheating is an aqueous mixture of the salt to be used during normal operation. The salt concentration may be increased periodically to increase temperature while remaining below the boiling temperature of the aqueous mixture. The aqueous mixture may be used to raise the temperature of outer conduit 304 to a temperature sufficient to allow the molten salt to flow in annular region 308. When the temperature is reached, the remaining water in the aqueous mixture may evaporate out of the mixture to leave the molten salt. The molten salt may be used to heat treatment area 300.
[0153] In some embodiments, inner conduit 306 may be made of a relatively inexpensive material such as carbon steel. In some embodiments, inner conduit 306 is made of material that survives through an initial early stage of the heat treatment process.
Outer conduit 304 may be made of material resistant to corrosion by the molten salt and formation fluid (for example, P91 steel).
Outer conduit 304 may be made of material resistant to corrosion by the molten salt and formation fluid (for example, P91 steel).
[0154] For a given mass flow rate of liquid heat transfer fluid, heating the treatment area using liquid heat transfer fluid flowing in annular region 308 between outer conduit 304 and inner conduit 306 may have certain advantages over flowing the liquid heat transfer fluid through a single conduit. Flowing secondary heat transfer fluid through inner conduit 306 may pre-heat heater 200 and ensure flow when liquid heat transfer fluid is first used and/or when flow needs to be restarted after a stop of circulation. The large outer surface area of outer conduit 304 provides a large surface area for heat transfer to the formation while the amount of liquid heat transfer fluid needed for the circulation system is reduced because of the presence of inner conduit 306. The circulated liquid heat transfer fluid may provide a better power injection rate distribution to the treatment area due to increased velocity of the liquid heat transfer fluid for the same mass flow rate.
Reliability of the heater may also be improved.
Reliability of the heater may also be improved.
[0155] In some embodiments, the heat transfer fluid (molten salt) may thicken and flow of the heat transfer fluid through outer conduit 304 and/or inner conduit 306 is slowed and/or impaired. Selectively heating various portions of inner conduit 306 may provide sufficient heat to various parts of the heater 200 to increase flow of the heat transfer fluid through the heater. Portions of heater 200 may include ferromagnetic material, for example insulated conductors, to allow current to be passed along selected portions of the heater. Resistively heating inner conduit 306 transfers sufficient heat to thickened heat transfer fluid in outer conduit 304 and/or inner conduit 306 to lower the viscosity of the heat transfer fluid such that increased flow, as compared to flow prior to heating of the molten salt, through the conduits is obtained. Using time-varying current allows current to be passed along the inner conduit without passing current through the heat transfer fluid.
[0156] FIG. 21 depicts a schematic for heating various portions of heater 200 to restart flow of thickened or immobilized heat transfer fluid (for example, a molten salt) in the heater. In certain embodiments, portions of inner conduit 306 and/or outer conduit 304 include ferromagnetic materials surrounded by thermal insulation. Thus, these portions of inner conduit 306 and/or outer conduit 304 may be insulated conductors 302.
Insulated conductors 302 may operate as temperature limited heaters or skin-effect heaters. Because of the skin-effect of insulated conductors 302, electrical current provided to the insulated conductors remains confined to inner conduit 306 and/or outer conduit 304 and does not flow through the heat transfer fluid located in the conduits.
Insulated conductors 302 may operate as temperature limited heaters or skin-effect heaters. Because of the skin-effect of insulated conductors 302, electrical current provided to the insulated conductors remains confined to inner conduit 306 and/or outer conduit 304 and does not flow through the heat transfer fluid located in the conduits.
[0157] In certain embodiments, insulated conductors 302 are positioned along a selected length of inner conduit 306 (for example, the entire length of the inner conduit or only the overburden portion of the inner conduit). Applying electricity to inner conduit 306 generates heat in insulated conductors 302. The generated heat may heat thickened or immobilized heat transfer fluid along the selected length of the inner conduit. The generated heat may heat the heat transfer fluid both inside the inner conduit and in the annulus between the inner conduit and outer conduit 304. In certain embodiments, inner conduit 306 only includes insulated conductors 302 positioned in the overburden portion of the inner conduit. These insulated conductors selectively generate heat in the overburden portions of inner conduit 306. Selectively heating the overburden portion of inner conduit 306 may transfer heat to thickened heat transfer fluid and restart flow in the overburden portion of the inner conduit. Such selective heating may increase heater life and minimize electrical heating costs by concentrating heat in the region most likely to encounter thickening or immobilization of the heat transfer fluid.
[0158] In certain embodiments, insulated conductors 302 are positioned along a selected length of outer conduit 304 (for example, the overburden portion of the outer conduit).
Applying electricity to outer conduit 304 generates heat in insulated conductors 302. The generated heat may selectively heat the overburden portions of the annulus between inner conduit 306 and outer conduit 304. Sufficient heat may be transferred from outer conduit 304 to lower the viscosity of the thickened heat transfer fluid to allow unimpaired flow of the molten salt in the annulus.
Applying electricity to outer conduit 304 generates heat in insulated conductors 302. The generated heat may selectively heat the overburden portions of the annulus between inner conduit 306 and outer conduit 304. Sufficient heat may be transferred from outer conduit 304 to lower the viscosity of the thickened heat transfer fluid to allow unimpaired flow of the molten salt in the annulus.
[0159] In certain embodiments, having a conduit-in-conduit heater configuration allows flow switchers to be used that change the flow of heat transfer fluid in the heater from flow through the annular region between the outer conduit and the inner conduit, when flow is adjacent to the treatment area, to flow through the inner conduit, when flow is adjacent to the overburden. FIG. 22 depicts a schematic representation of conduit-in-conduit heaters 200 that are used with fluid circulation systems 202, 202' to heat treatment area 300. In certain embodiments, heaters 200 include outer conduit 304, inner conduit 306, and flow switchers 310. Fluid circulation systems 202, 202' provide heated liquid heat transfer fluid to wellheads 226. The direction of flow of liquid heat transfer fluid is indicated by arrows 312.
[0160] Heat transfer fluid from fluid circulation system 202 passes through wellhead 226 to inner conduit 306. The heat transfer fluid passes through flow switcher 310, which changes the flow from inner conduit 306 to the annular region between outer conduit 304 and the inner conduit. The heat transfer fluid then flows through heater 200 in treatment area 300. Heat transfer from the heat transfer fluid provides heat to treatment area 300.
The heat transfer fluid then passes through second flow switcher 310', which changes the flow from the annular region back to inner conduit 306. The heat transfer fluid is removed from the formation through second wellhead 226' and is provided to fluid circulation system 202'. Heated heat transfer fluid from fluid circulation system 202' passes through heater 200' back to fluid circulation system 202.
The heat transfer fluid then passes through second flow switcher 310', which changes the flow from the annular region back to inner conduit 306. The heat transfer fluid is removed from the formation through second wellhead 226' and is provided to fluid circulation system 202'. Heated heat transfer fluid from fluid circulation system 202' passes through heater 200' back to fluid circulation system 202.
[0161] Using flow switchers 310 to pass the fluid through the annular region while the fluid is adjacent to treatment area 300 promotes increased heat transfer to the treatment area due in part to the large heat transfer area of outer conduit 304. Using flow switchers 310 to pass the fluid through the inner conduit when adjacent to overburden 218 may reduce heat losses to the overburden. Additionally, heaters 200 may be insulated adjacent to overburden 218 to reduce heat losses to the formation.
[0162] FIG. 23 depicts a cross-sectional view of an embodiment of a conduit-in-conduit heater 200 adjacent to overburden 218. Insulation 314 may be positioned between outer conduit 304 and inner conduit 306. Liquid heat transfer fluid may flow through the center of inner conduit 306. Insulation 314 may be a highly porous insulation layer that inhibits radiation at high temperatures (for example, temperatures above 500 C) and allows flow of a secondary heat transfer fluid during preheating and/or flow assurance stages of heating. During normal operation, flow of fluid through the annular region between outer conduit 304 and inner conduit 306 adjacent to overburden 218 may be stopped or inhibited.
[0163] Insulating sleeve 224 may be positioned around outer conduit 304.
Insulating sleeves 224 on each side of a u-shaped heater may be securely coupled to outer conduit 304 over a long length when the system is not heated so that the insulating sleeves on each side of the u-shaped wellbore are able to support the weight of the heater.
Insulating sleeve 224 may include an outer member that is a structural member that allows heater 200 to be lifted to accommodate thermal expansion of the heater. Casing 238 may surround insulating sleeve 224. Insulating cement 236 may couple casing 238 to overburden 218.
Insulating cement 236 may be a low thermal conductivity cement that reduces conductive heat losses.
For example, insulating cement 236 may be a vermiculite/cement aggregate. A
non-reactive gas may be introduced into gap 242 between insulating sleeve 224 and casing 238 to inhibit formation fluid from rising in the wellbore and/or to provide an insulating gas blanket.
Insulating sleeves 224 on each side of a u-shaped heater may be securely coupled to outer conduit 304 over a long length when the system is not heated so that the insulating sleeves on each side of the u-shaped wellbore are able to support the weight of the heater.
Insulating sleeve 224 may include an outer member that is a structural member that allows heater 200 to be lifted to accommodate thermal expansion of the heater. Casing 238 may surround insulating sleeve 224. Insulating cement 236 may couple casing 238 to overburden 218.
Insulating cement 236 may be a low thermal conductivity cement that reduces conductive heat losses.
For example, insulating cement 236 may be a vermiculite/cement aggregate. A
non-reactive gas may be introduced into gap 242 between insulating sleeve 224 and casing 238 to inhibit formation fluid from rising in the wellbore and/or to provide an insulating gas blanket.
[0164] FIG. 24 depicts a schematic of an embodiment of circulation system 202 that supplies liquid heat transfer fluid to conduit-in-conduit heaters positioned in the formation (for example, the heaters depicted in FIG. 22). Circulation system 202 may include heat supply 204, compressor 316, heat exchanger 318, exhaust system 320, liquid storage tank 322, fluid movers 210 (for example, pumps), supply manifold 324, return manifold 326, and secondary heat transfer fluid circulation system 328. In certain embodiments, heat supply 204 is a furnace. Fuel for heat supply 204 may be supplied through fuel line 330.
Control valve 332 may regulate the amount of fuel supplied to heat supply 204 based on the temperature of hot heat transfer fluid as measured by temperature monitor 334.
Control valve 332 may regulate the amount of fuel supplied to heat supply 204 based on the temperature of hot heat transfer fluid as measured by temperature monitor 334.
[0165] Oxidant for heat supply 204 may be supplied through oxidant line 336.
Exhaust from heat supply 204 may pass through heat exchanger 318 to exhaust system 320.
Oxidant from compressor 316 may pass through heat exchanger 318 to be heated by the exhaust from heat supply 204.
Exhaust from heat supply 204 may pass through heat exchanger 318 to exhaust system 320.
Oxidant from compressor 316 may pass through heat exchanger 318 to be heated by the exhaust from heat supply 204.
[0166] In some embodiments, valve 338 may be opened during preheating and/or during start-up of fluid circulation to the heaters to supply secondary heat transfer fluid circulation system 328 with a heating fluid. In some embodiments, exhaust gas is circulated through the heaters by secondary heat transfer fluid circulation system 328. In some embodiments, the exhaust gas passes through one or more heat exchangers of secondary heat transfer fluid circulation system 328 to heat fluid that is circulated through the heaters.
[0167] During preheating, secondary heat transfer fluid circulation system 328 may supply secondary heat transfer fluid to the inner conduit of the heaters and/or to the annular region between the inner conduit and the outer conduit. Line 340 may provide secondary heat transfer fluid to the part of supply manifold 324 that supplies fluid to the inner conduits of the heaters. Line 342 may provide secondary heat transfer fluid to the part of supply manifold 324 that supplies fluid to the annular regions between the inner conduits and the outer conduits of the heaters. Line 344 may return secondary heat transfer fluid from the part of the return manifold 326 that returns fluid from the inner conduits of the heaters.
Line 346 may return secondary heat transfer fluid from the part of the return manifold 326 that returns fluid from the annular regions of the heaters. Valves 348 of secondary heat transfer fluid circulation system 328 may allow or stop secondary heat transfer flow to or from supply manifold 324 and/or return manifold 326. During preheating, all valves 348 may be open. During the flow assurance stage of heating, valves 348 for line 340 and for line 344 may be closed, and valves 348 for line 342 and line 346 may be open.
Liquid heat transfer fluid from heat supply 204 may be provided to the part of supply manifold 324 that supplies fluid to the inner conduits of the heaters during the flow assurance stage of heating. Liquid heat transfer fluid may return to liquid storage tank 322 from the portion of return manifold 326 that returns fluid from the inner conduits of the heaters. During normal operation, all valves 348 may be closed.
Line 346 may return secondary heat transfer fluid from the part of the return manifold 326 that returns fluid from the annular regions of the heaters. Valves 348 of secondary heat transfer fluid circulation system 328 may allow or stop secondary heat transfer flow to or from supply manifold 324 and/or return manifold 326. During preheating, all valves 348 may be open. During the flow assurance stage of heating, valves 348 for line 340 and for line 344 may be closed, and valves 348 for line 342 and line 346 may be open.
Liquid heat transfer fluid from heat supply 204 may be provided to the part of supply manifold 324 that supplies fluid to the inner conduits of the heaters during the flow assurance stage of heating. Liquid heat transfer fluid may return to liquid storage tank 322 from the portion of return manifold 326 that returns fluid from the inner conduits of the heaters. During normal operation, all valves 348 may be closed.
[0168] In some embodiments, secondary heat transfer fluid circulation system 328 is a mobile system. Once normal flow of heat transfer fluid through the heaters is established, mobile secondary heat transfer fluid circulation system 328 may be moved and attached to another circulation system that has not been initiated.
[0169] During normal operation, liquid storage tank 322 may receive heat transfer fluid from return manifold 326. Liquid storage tank 322 may be insulated and heat traced. Heat tracing may include steam circulation system 350 that circulates steam through coils in liquid storage tank 322. Steam passed through the coils maintains heat transfer fluid in liquid storage tank 322 at a desired temperature or in a desired temperature range.
[0170] Fluid movers 210 may move liquid heat transfer fluid from liquid storage tank 322 to heat supply 204. In some embodiments, fluid movers 210 are submersible pumps that are positioned in liquid storage tank 322. Having fluid movers 210 in storage tanks may keep the pumps at temperatures well within the operating temperature limits of the pumps.
Also, the heat transfer fluid may function as a lubricant for the pumps. One or more redundant pump systems may be placed in liquid storage tank 322. A redundant pump system may be used if the primary pump system shuts down or needs to be serviced.
Also, the heat transfer fluid may function as a lubricant for the pumps. One or more redundant pump systems may be placed in liquid storage tank 322. A redundant pump system may be used if the primary pump system shuts down or needs to be serviced.
[0171] During start-up of heat supply 204, valves 352 may direct liquid heat transfer fluid to liquid storage tank. After preheating of a heater in the formation is completed, valves 352 may be reconfigured to direct liquid heat transfer fluid to the part of supply manifold 324 that supplies the liquid heat transfer fluid to the inner conduit of the preheated heater.
Return liquid heat transfer fluid from the inner conduit of a preheated return conduit may pass through the part of return manifold 326 that receives heat transfer fluid that has passed through the formation and directs the heat transfer fluid to liquid storage tank 322.
Return liquid heat transfer fluid from the inner conduit of a preheated return conduit may pass through the part of return manifold 326 that receives heat transfer fluid that has passed through the formation and directs the heat transfer fluid to liquid storage tank 322.
[0172] To begin using fluid circulation system 202, liquid storage tank 322 may be heated using steam circulation system 350. The heat transfer fluid may be added to liquid storage tank 322. The heat transfer fluid may be added as solid particles that melt in liquid storage tank 322 or liquid heat transfer fluid may be added to the liquid storage tank. Heat supply 204 may be started, and fluid movers 210 may be used to circulate heat transfer fluid from liquid storage tank 322 to the heat supply and back. Secondary heat transfer fluid circulation system 328 may be used to heat heaters in the formation that are coupled to supply manifolds 324 and return manifolds 326. Supply of secondary heat transfer fluid to the portion of supply manifold 324 that feeds the inner conduits of the heaters may be stopped. The return of secondary heat transfer fluid from the portion of return manifold that receives heat transfer fluid from the inner conduits of the heaters may also be stopped.
Heat transfer fluid from heat supply 204 may then be directed to the inner conduit of the heaters.
Heat transfer fluid from heat supply 204 may then be directed to the inner conduit of the heaters.
[0173] The heat transfer fluid may flow through the inner conduits of the heaters to flow switchers that change the flow of fluid from the inner conduits to the annular regions between the inner conduits and the outer conduits. The heat transfer fluid may then pass through flow switchers that change the flow back to the inner conduits. Valves coupled to the heaters may allow heat transfer fluid flow to the individual heaters to be started sequentially instead of having the fluid circulation system supply heat transfer fluid to all of the heaters at once.
[0174] Return manifold 326 receives heat transfer fluid that has passed through heaters in the formation that are supplied from a second fluid circulation system. Heat transfer fluid in return manifold 326 may be directed back into liquid storage tank 322.
[0175] During initial heating, secondary heat transfer fluid circulation system 328 may continue to circulate secondary heat transfer fluid through the portion of the heater not receiving the heat transfer fluid supplied from heat supply 204. In some embodiments, secondary heat transfer fluid circulation system 328 directs the secondary heat transfer fluid in the same direction as the flow of heat transfer fluid supplied from heat supply 204.
In some embodiments, secondary heat transfer fluid circulation system 328 directs the secondary heat transfer fluid in the opposite direction to the flow of heat transfer fluid supplied from heat supply 204. The secondary heat transfer fluid may ensure continued flow of the heat transfer fluid supplied from heat supply 204. Flow of the secondary heat transfer fluid may be stopped when the secondary heat transfer fluid leaving the formation is hotter than the secondary heat transfer fluid supplied to the formation due to heat transfer with the heat transfer fluid supplied from heat supply 204. In some embodiments, flow of secondary heat transfer fluid may be stopped when other conditions are met, after a selected period of time.
In some embodiments, secondary heat transfer fluid circulation system 328 directs the secondary heat transfer fluid in the opposite direction to the flow of heat transfer fluid supplied from heat supply 204. The secondary heat transfer fluid may ensure continued flow of the heat transfer fluid supplied from heat supply 204. Flow of the secondary heat transfer fluid may be stopped when the secondary heat transfer fluid leaving the formation is hotter than the secondary heat transfer fluid supplied to the formation due to heat transfer with the heat transfer fluid supplied from heat supply 204. In some embodiments, flow of secondary heat transfer fluid may be stopped when other conditions are met, after a selected period of time.
[0176] Further modifications and alternative embodiments of various aspects of the invention may be apparent to those skilled in the art in view of this description.
Accordingly, this description is to be construed as illustrative only and is for the purpose of teaching those skilled in the art the general manner of carrying out the invention. It is to be understood that the forms of the invention shown and described herein are to be taken as the presently preferred embodiments. Elements and materials may be substituted for those illustrated and described herein, parts and processes may be reversed, and certain features of the invention may be utilized independently, all as would be apparent to one skilled in the art after having the benefit of this description of the invention. Changes may be made in the elements described herein without departing from the spirit and scope of the invention as described in the following claims. In addition, it is to be understood that features described herein independently may, in certain embodiments, be combined.
Accordingly, this description is to be construed as illustrative only and is for the purpose of teaching those skilled in the art the general manner of carrying out the invention. It is to be understood that the forms of the invention shown and described herein are to be taken as the presently preferred embodiments. Elements and materials may be substituted for those illustrated and described herein, parts and processes may be reversed, and certain features of the invention may be utilized independently, all as would be apparent to one skilled in the art after having the benefit of this description of the invention. Changes may be made in the elements described herein without departing from the spirit and scope of the invention as described in the following claims. In addition, it is to be understood that features described herein independently may, in certain embodiments, be combined.
Claims (20)
1. A method for heating a subsurface formation, comprising:
applying heat from a plurality of heaters to the formation; and allowing a portion of one or more of the heaters to move out of wellheads equipped with sliding seals to accommodate thermal expansion of the heaters.
applying heat from a plurality of heaters to the formation; and allowing a portion of one or more of the heaters to move out of wellheads equipped with sliding seals to accommodate thermal expansion of the heaters.
2. The method of claim 1, wherein applying heat from the plurality of heaters comprises flowing heat transfer fluid through one or more heaters.
3. The method of claim 1, wherein the portion of a heater that moves out of a wellhead is insulated.
4. The method of claim 1, further comprising fixing a position of a heater relative to a wellhead through which the heater passes after significant change in length of the heater due to thermal expansion ceases.
5. A method for heating a subsurface formation, comprising:
applying heat from a plurality of heaters to the formation; and allowing a portion of one or more of the heaters to move out of wellheads using one or more slip joints.
applying heat from a plurality of heaters to the formation; and allowing a portion of one or more of the heaters to move out of wellheads using one or more slip joints.
6. The method of claim 5, wherein at least a portion of at least one slip joint comprises at least one sliding seal, wherein the sliding seal is spatially separated from heat.
7. The method of claim 5, wherein applying heat from the plurality of heaters comprises flowing heat transfer fluid through one or more heaters.
8. The method of claim 5, wherein the portion of a heater that moves out of a wellhead is insulated.
9. The method of claim 5, further comprising fixing a position of a heater relative to a wellhead through which the heater passes after significant change in length of the heater due to thermal expansion ceases.
10. A method for accommodating thermal expansion of a heater in a formation, comprising:
heating a heater in the formation; and lifting a portion of the heater out of the formation to accommodate thermal expansion of the heater.
heating a heater in the formation; and lifting a portion of the heater out of the formation to accommodate thermal expansion of the heater.
11. The method of claim 10, wherein at least a portion of at least one slip joint comprises at least one sliding seal, wherein the sliding seal is spatially separated from heat.
12. The method of claim 10, wherein applying heat from the plurality of heaters comprises flowing heat transfer fluid through one or more heaters.
13. The method of claim 10, wherein the portion of a heater that moves out of a wellhead is insulated.
14. The method of claim 10, further comprising fixing a position of a heater relative to a wellhead through which the heater passes after significant change in length of the heater due to thermal expansion ceases.
15. A system for heating a subsurface formation, comprising:
a plurality of heaters positioned in the formation, the heaters configured to provide heat to the formation; and at least one lifter coupled to a portion of a heater, the lifter configured to lift portions of the heater out of the formation to accommodate thermal expansion of the heater.
a plurality of heaters positioned in the formation, the heaters configured to provide heat to the formation; and at least one lifter coupled to a portion of a heater, the lifter configured to lift portions of the heater out of the formation to accommodate thermal expansion of the heater.
16. The system of claim 15, wherein applying heat from the plurality of heaters comprises flowing heat transfer fluid through one or more heaters.
17. The system of claim 15, wherein at least one lifter comprises a hydraulic lifter.
18. The system of claim 15, further comprising measuring the strain of the heater near at least one lifter, and controlling the amount of lift applied to the heater from the lifter based on the measured strain.
19. The system of claim 15, further comprising measuring a first hydraulic pressure of a lifter coupled to a heater before heating the heater, and controlling the hydraulic pressure of the lifter after heating is initiated to maintain the hydraulic pressure of the lifter at least close to the first hydraulic pressure.
20. The system of claim 15, further comprising fixing a position of a heater relative to a wellhead through which the heater passes after significant change in length of the heater due to thermal expansion ceases.
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US61/168,498 | 2009-04-10 | ||
PCT/US2009/060092 WO2010045098A1 (en) | 2008-10-13 | 2009-10-09 | Circulated heated transfer fluid systems used to treat a subsurface formation |
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CA2738804A Abandoned CA2738804A1 (en) | 2008-10-13 | 2009-10-09 | Circulated heated transfer fluid heating of subsurface hydrocarbon formations |
CA2739086A Abandoned CA2739086A1 (en) | 2008-10-13 | 2009-10-09 | Using self-regulating nuclear reactors in treating a subsurface formation |
CA2738939A Abandoned CA2738939A1 (en) | 2008-10-13 | 2009-10-09 | Using self-regulating nuclear reactors in treating a subsurface formation |
CA2739088A Abandoned CA2739088A1 (en) | 2008-10-13 | 2009-10-09 | Systems and methods of forming subsurface wellbores |
CA2738805A Abandoned CA2738805A1 (en) | 2008-10-13 | 2009-10-09 | Circulated heated transfer fluid systems used to treat a subsurface formation |
CA2739039A Active CA2739039C (en) | 2008-10-13 | 2009-10-09 | Systems and methods for treating a subsurface formation with electrical conductors |
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CA2739086A Abandoned CA2739086A1 (en) | 2008-10-13 | 2009-10-09 | Using self-regulating nuclear reactors in treating a subsurface formation |
CA2738939A Abandoned CA2738939A1 (en) | 2008-10-13 | 2009-10-09 | Using self-regulating nuclear reactors in treating a subsurface formation |
CA2739088A Abandoned CA2739088A1 (en) | 2008-10-13 | 2009-10-09 | Systems and methods of forming subsurface wellbores |
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Families Citing this family (236)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001081239A2 (en) | 2000-04-24 | 2001-11-01 | Shell Internationale Research Maatschappij B.V. | In situ recovery from a hydrocarbon containing formation |
AU2002257221B2 (en) | 2001-04-24 | 2008-12-18 | Shell Internationale Research Maatschappij B.V. | In situ recovery from a oil shale formation |
NZ532089A (en) | 2001-10-24 | 2005-09-30 | Shell Int Research | Installation and use of removable heaters in a hydrocarbon containing formation |
US8161998B2 (en) | 2007-06-04 | 2012-04-24 | Matos Jeffrey A | Frozen/chilled fluid for pipelines and for storage facilities |
NZ567052A (en) | 2003-04-24 | 2009-11-27 | Shell Int Research | Thermal process for subsurface formations |
US7320364B2 (en) | 2004-04-23 | 2008-01-22 | Shell Oil Company | Inhibiting reflux in a heated well of an in situ conversion system |
US7987613B2 (en) * | 2004-10-12 | 2011-08-02 | Great River Energy | Control system for particulate material drying apparatus and process |
US8224165B2 (en) | 2005-04-22 | 2012-07-17 | Shell Oil Company | Temperature limited heater utilizing non-ferromagnetic conductor |
US7533719B2 (en) | 2006-04-21 | 2009-05-19 | Shell Oil Company | Wellhead with non-ferromagnetic materials |
US8159825B1 (en) | 2006-08-25 | 2012-04-17 | Hypres Inc. | Method for fabrication of electrical contacts to superconducting circuits |
US20080083566A1 (en) * | 2006-10-04 | 2008-04-10 | George Alexander Burnett | Reclamation of components of wellbore cuttings material |
GB2455947B (en) | 2006-10-20 | 2011-05-11 | Shell Int Research | Heating hydrocarbon containing formations in a checkerboard pattern staged process |
EP2115368A1 (en) * | 2007-02-02 | 2009-11-11 | Steve D. Shivvers | High efficiency drier with multi stage heating and drying zones |
AU2009201961B2 (en) * | 2007-02-12 | 2011-04-14 | Valkyrie Commissioning Services, Inc | Apparatus and methods for subsea control system testing |
GB2460980B (en) | 2007-04-20 | 2011-11-02 | Shell Int Research | Controlling and assessing pressure conditions during treatment of tar sands formations |
JP5063195B2 (en) * | 2007-05-31 | 2012-10-31 | ラピスセミコンダクタ株式会社 | Data processing device |
US8146661B2 (en) | 2007-10-19 | 2012-04-03 | Shell Oil Company | Cryogenic treatment of gas |
US9188086B2 (en) | 2008-01-07 | 2015-11-17 | Mcalister Technologies, Llc | Coupled thermochemical reactors and engines, and associated systems and methods |
US8318131B2 (en) | 2008-01-07 | 2012-11-27 | Mcalister Technologies, Llc | Chemical processes and reactors for efficiently producing hydrogen fuels and structural materials, and associated systems and methods |
AT10660U1 (en) * | 2008-03-19 | 2009-07-15 | Binder Co Ag | DRYER WITH COOLING MEDIUM |
WO2009129143A1 (en) | 2008-04-18 | 2009-10-22 | Shell Oil Company | Systems, methods, and processes utilized for treating hydrocarbon containing subsurface formations |
WO2010045115A2 (en) | 2008-10-13 | 2010-04-22 | Shell Oil Company | Treating subsurface hydrocarbon containing formations and the systems, methods, and processes utilized |
US8441361B2 (en) | 2010-02-13 | 2013-05-14 | Mcallister Technologies, Llc | Methods and apparatuses for detection of properties of fluid conveyance systems |
US20110203776A1 (en) * | 2009-02-17 | 2011-08-25 | Mcalister Technologies, Llc | Thermal transfer device and associated systems and methods |
CA2758192A1 (en) | 2009-04-10 | 2010-10-14 | Shell Internationale Research Maatschappij B.V. | Treatment methodologies for subsurface hydrocarbon containing formations |
US7792250B1 (en) * | 2009-04-30 | 2010-09-07 | Halliburton Energy Services Inc. | Method of selecting a wellbore cement having desirable characteristics |
GB2474249B (en) | 2009-10-07 | 2015-11-04 | Mark Collins | An apparatus for generating heat |
US8356935B2 (en) | 2009-10-09 | 2013-01-22 | Shell Oil Company | Methods for assessing a temperature in a subsurface formation |
WO2011044489A1 (en) * | 2009-10-09 | 2011-04-14 | Shell Oil Company | Methods for assessing a temperature in a subsurface formation |
US9466896B2 (en) | 2009-10-09 | 2016-10-11 | Shell Oil Company | Parallelogram coupling joint for coupling insulated conductors |
US8816203B2 (en) | 2009-10-09 | 2014-08-26 | Shell Oil Company | Compacted coupling joint for coupling insulated conductors |
AU2010310966A1 (en) * | 2009-10-28 | 2011-10-06 | Csir | Integrated sensing device for assessing integrity of a rock mass and corresponding method |
US8386221B2 (en) * | 2009-12-07 | 2013-02-26 | Nuovo Pignone S.P.A. | Method for subsea equipment subject to hydrogen induced stress cracking |
US8602658B2 (en) * | 2010-02-05 | 2013-12-10 | Baker Hughes Incorporated | Spoolable signal conduction and connection line and method |
KR20130036001A (en) | 2010-02-13 | 2013-04-09 | 맥알리스터 테크놀로지즈 엘엘씨 | Reactor vessel with transmissive surfaces for producing hydrogen-based fuels and structural elements, and associated systems and methods |
JP5726912B2 (en) * | 2010-02-13 | 2015-06-03 | マクアリスター テクノロジーズ エルエルシー | Chemical reactor with re-radiating surface and related systems and methods |
US8397828B2 (en) * | 2010-03-25 | 2013-03-19 | Baker Hughes Incorporated | Spoolable downhole control system and method |
US8631866B2 (en) | 2010-04-09 | 2014-01-21 | Shell Oil Company | Leak detection in circulated fluid systems for heating subsurface formations |
US8833453B2 (en) | 2010-04-09 | 2014-09-16 | Shell Oil Company | Electrodes for electrical current flow heating of subsurface formations with tapered copper thickness |
US8939207B2 (en) | 2010-04-09 | 2015-01-27 | Shell Oil Company | Insulated conductor heaters with semiconductor layers |
US9127538B2 (en) | 2010-04-09 | 2015-09-08 | Shell Oil Company | Methodologies for treatment of hydrocarbon formations using staged pyrolyzation |
US9033042B2 (en) | 2010-04-09 | 2015-05-19 | Shell Oil Company | Forming bitumen barriers in subsurface hydrocarbon formations |
US8502120B2 (en) | 2010-04-09 | 2013-08-06 | Shell Oil Company | Insulating blocks and methods for installation in insulated conductor heaters |
US20110277992A1 (en) * | 2010-05-14 | 2011-11-17 | Paul Grimes | Systems and methods for enhanced recovery of hydrocarbonaceous fluids |
US8943850B2 (en) | 2010-05-25 | 2015-02-03 | 7Ac Technologies, Inc. | Desalination methods and systems |
US8857051B2 (en) | 2010-10-08 | 2014-10-14 | Shell Oil Company | System and method for coupling lead-in conductor to insulated conductor |
US8732946B2 (en) | 2010-10-08 | 2014-05-27 | Shell Oil Company | Mechanical compaction of insulator for insulated conductor splices |
WO2012048191A1 (en) * | 2010-10-08 | 2012-04-12 | Shell Oil Company | Methods for joining insulated conductors |
US8943686B2 (en) | 2010-10-08 | 2015-02-03 | Shell Oil Company | Compaction of electrical insulation for joining insulated conductors |
CA2811795A1 (en) * | 2010-10-08 | 2012-04-12 | Renfeng Richard Cao | Methods of heating a subsurface formation using electrically conductive particles |
US20130251547A1 (en) * | 2010-12-28 | 2013-09-26 | Hansen Energy Solutions Llc | Liquid Lift Pumps for Gas Wells |
US9139316B2 (en) | 2010-12-29 | 2015-09-22 | Cardinal Health 414, Llc | Closed vial fill system for aseptic dispensing |
US20120228286A1 (en) * | 2011-03-09 | 2012-09-13 | Central Garden And Pet Company | Inductive Heating Device for Aquarium Tanks |
JP5399436B2 (en) * | 2011-03-30 | 2014-01-29 | 公益財団法人地球環境産業技術研究機構 | Storage substance storage device and storage method |
US9016370B2 (en) | 2011-04-08 | 2015-04-28 | Shell Oil Company | Partial solution mining of hydrocarbon containing layers prior to in situ heat treatment |
EP2695242B1 (en) * | 2011-04-08 | 2017-01-04 | Shell Internationale Research Maatschappij B.V. | Compaction of electrical insulation for joining insulated conductors |
RU2587459C2 (en) | 2011-04-08 | 2016-06-20 | Шелл Интернэшнл Рисерч Маатсхаппий Б.В. | Systems for joining insulated conductors |
CN102200004A (en) * | 2011-05-12 | 2011-09-28 | 刘锋 | Special energy-saving matching device for beam pumping unit and pumping unit thereof |
US8978769B2 (en) * | 2011-05-12 | 2015-03-17 | Richard John Moore | Offshore hydrocarbon cooling system |
US8887806B2 (en) | 2011-05-26 | 2014-11-18 | Halliburton Energy Services, Inc. | Method for quantifying cement blend components |
US20130102772A1 (en) | 2011-07-15 | 2013-04-25 | Cardinal Health 414, Llc | Systems, methods and devices for producing, manufacturing and control of radiopharmaceuticals-full |
WO2013012813A1 (en) | 2011-07-15 | 2013-01-24 | Cardinal Health 414, Llc | Modular cassette synthesis unit |
US9417332B2 (en) | 2011-07-15 | 2016-08-16 | Cardinal Health 414, Llc | Radiopharmaceutical CZT sensor and apparatus |
AU2012287009B2 (en) | 2011-07-25 | 2018-01-18 | H2 Catalyst, Llc | Methods and systems for producing hydrogen |
US9522379B2 (en) | 2011-08-12 | 2016-12-20 | Mcalister Technologies, Llc | Reducing and/or harvesting drag energy from transport vehicles, including for chemical reactors, and associated systems and methods |
WO2013025655A2 (en) | 2011-08-12 | 2013-02-21 | Mcalister Technologies, Llc | Systems and methods for providing supplemental aqueous thermal energy |
WO2013025650A1 (en) | 2011-08-12 | 2013-02-21 | Mcalister Technologies, Llc | Mobile transport platforms for producing hydrogen and structural materials and associated systems and methods |
CN103857873A (en) | 2011-08-12 | 2014-06-11 | 麦卡利斯特技术有限责任公司 | Systems and methods for extracting and processing gases from submerged sources |
US8669014B2 (en) | 2011-08-12 | 2014-03-11 | Mcalister Technologies, Llc | Fuel-cell systems operable in multiple modes for variable processing of feedstock materials and associated devices, systems, and methods |
US8734546B2 (en) | 2011-08-12 | 2014-05-27 | Mcalister Technologies, Llc | Geothermal energization of a non-combustion chemical reactor and associated systems and methods |
US8826657B2 (en) | 2011-08-12 | 2014-09-09 | Mcallister Technologies, Llc | Systems and methods for providing supplemental aqueous thermal energy |
US8888408B2 (en) | 2011-08-12 | 2014-11-18 | Mcalister Technologies, Llc | Systems and methods for collecting and processing permafrost gases, and for cooling permafrost |
WO2013025647A2 (en) | 2011-08-12 | 2013-02-21 | Mcalister Technologies, Llc | Fuel-cell systems operable in multiple modes for variable processing of feedstock materials and associated devices, systems, and methods |
US8911703B2 (en) | 2011-08-12 | 2014-12-16 | Mcalister Technologies, Llc | Reducing and/or harvesting drag energy from transport vehicles, including for chemical reactors, and associated systems and methods |
US20130101492A1 (en) * | 2011-08-12 | 2013-04-25 | Mcalister Technologies, Llc | Geothermal energization of a non-combustion chemical reactor and associated systems and methods |
WO2013052566A1 (en) * | 2011-10-07 | 2013-04-11 | Shell Oil Company | Using dielectric properties of an insulated conductor in a subsurface formation to assess properties of the insulated conductor |
JO3141B1 (en) | 2011-10-07 | 2017-09-20 | Shell Int Research | Integral splice for insulated conductors |
JO3139B1 (en) | 2011-10-07 | 2017-09-20 | Shell Int Research | Forming insulated conductors using a final reduction step after heat treating |
US9309755B2 (en) | 2011-10-07 | 2016-04-12 | Shell Oil Company | Thermal expansion accommodation for circulated fluid systems used to heat subsurface formations |
US9243482B2 (en) | 2011-11-01 | 2016-01-26 | Nem Energy B.V. | Steam supply for enhanced oil recovery |
WO2013070805A1 (en) * | 2011-11-07 | 2013-05-16 | Oklahoma Safety Equipment Company, Inc. (Oseco) | Pressure relief device, system, and method |
CN102436856A (en) * | 2011-12-13 | 2012-05-02 | 匡仲平 | Method for avoiding nuclear radiation pollution caused by nuclear leakage accident |
RU2485300C1 (en) * | 2011-12-14 | 2013-06-20 | Открытое акционерное общество "Татнефть" имени В.Д. Шашина | Development method of oil deposit in fractured reservoirs |
EP2610570B1 (en) * | 2011-12-29 | 2016-11-23 | Ipsen, Inc. | Heating element arrangement for a vacuum heat treating furnace |
EP2612983B1 (en) * | 2012-01-03 | 2014-05-21 | Quantum Technologie GmbH | Apparatus and method for oil sand exploitation |
CA2898956A1 (en) | 2012-01-23 | 2013-08-01 | Genie Ip B.V. | Heater pattern for in situ thermal processing of a subsurface hydrocarbon containing formation |
AU2012367347A1 (en) | 2012-01-23 | 2014-08-28 | Genie Ip B.V. | Heater pattern for in situ thermal processing of a subsurface hydrocarbon containing formation |
AU2013221197A1 (en) * | 2012-02-18 | 2014-08-28 | Genie Ip B.V. | Method and system for heating a bed of hydrocarbon- containing rocks |
CA2811666C (en) | 2012-04-05 | 2021-06-29 | Shell Internationale Research Maatschappij B.V. | Compaction of electrical insulation for joining insulated conductors |
US9303487B2 (en) * | 2012-04-30 | 2016-04-05 | Baker Hughes Incorporated | Heat treatment for removal of bauschinger effect or to accelerate cement curing |
US10435994B2 (en) * | 2012-05-04 | 2019-10-08 | Landmark Graphics Corporation | Systems and methods for optimal spacing of horizontal wells |
US10210961B2 (en) * | 2012-05-11 | 2019-02-19 | Ge-Hitachi Nuclear Energy Americas, Llc | System and method for a commercial spent nuclear fuel repository turning heat and gamma radiation into value |
SG11201407563QA (en) * | 2012-05-16 | 2014-12-30 | Chevron Usa Inc | Process, method, and system for removing mercury from fluids |
US9447675B2 (en) * | 2012-05-16 | 2016-09-20 | Chevron U.S.A. Inc. | In-situ method and system for removing heavy metals from produced fluids |
JP2013249605A (en) * | 2012-05-31 | 2013-12-12 | Ihi Corp | Gas-hydrate collecting system |
CN104508417B (en) | 2012-06-11 | 2017-03-29 | 7Ac技术公司 | For the method and system of the corrosion resistant heat exchanger of turbulence type |
US10076001B2 (en) * | 2012-07-05 | 2018-09-11 | Nvent Services Gmbh | Mineral insulated cable having reduced sheath temperature |
US8424784B1 (en) | 2012-07-27 | 2013-04-23 | MBJ Water Partners | Fracture water treatment method and system |
US9896918B2 (en) | 2012-07-27 | 2018-02-20 | Mbl Water Partners, Llc | Use of ionized water in hydraulic fracturing |
EP2882931A1 (en) * | 2012-08-13 | 2015-06-17 | Chevron U.S.A. Inc. | Enhancing production of clathrates by use of thermosyphons |
EP3348783B1 (en) * | 2012-09-20 | 2020-07-15 | nVent Services GmbH | Downhole wellbore heating system |
WO2014058777A1 (en) * | 2012-10-09 | 2014-04-17 | Shell Oil Company | Method for heating a subterranean formation penetrated by a wellbore |
WO2014062862A1 (en) * | 2012-10-16 | 2014-04-24 | Genie Ip B.V. | System and method for thermally treating a subsurface formation by a heated molten salt mixture |
US10443315B2 (en) * | 2012-11-28 | 2019-10-15 | Nextstream Wired Pipe, Llc | Transmission line for wired pipe |
RU2549654C2 (en) * | 2012-12-04 | 2015-04-27 | Общество с ограниченной ответственностью "Краснодарский Компрессорный Завод" | Nitrogen compressor plant to increase bed production rate (versions) |
US9506697B2 (en) | 2012-12-04 | 2016-11-29 | 7Ac Technologies, Inc. | Methods and systems for cooling buildings with large heat loads using desiccant chillers |
RU2015126797A (en) | 2012-12-06 | 2017-01-12 | Сименс Акциенгезелльшафт | SYSTEM AND METHOD FOR INTRODUCING HEAT INTO GEOLOGICAL FORMATION USING ELECTROMAGNETIC INDUCTION |
GB201223055D0 (en) * | 2012-12-20 | 2013-02-06 | Carragher Paul | Method and apparatus for use in well abandonment |
WO2014134473A1 (en) | 2013-03-01 | 2014-09-04 | 7Ac Technologies, Inc. | Desiccant air conditioning methods and systems |
US20140251596A1 (en) * | 2013-03-05 | 2014-09-11 | Cenovus Energy Inc. | Single vertical or inclined well thermal recovery process |
US20140251608A1 (en) * | 2013-03-05 | 2014-09-11 | Cenovus Energy Inc. | Single vertical or inclined well thermal recovery process |
WO2014160301A1 (en) | 2013-03-14 | 2014-10-02 | Mcalister Technologies, Llc | Method and apparatus for generating hydrogen from metal |
CN105121966B (en) | 2013-03-14 | 2018-06-01 | 7Ac技术公司 | For the method and system of liquid drier air handling system transformation |
WO2014152905A1 (en) | 2013-03-14 | 2014-09-25 | 7Ac Technologies, Inc. | Methods and systems for mini-split liquid desiccant air conditioning |
US10316644B2 (en) | 2013-04-04 | 2019-06-11 | Shell Oil Company | Temperature assessment using dielectric properties of an insulated conductor heater with selected electrical insulation |
DE102013104643B3 (en) * | 2013-05-06 | 2014-06-18 | Borgwarner Beru Systems Gmbh | Corona ignition device, has housing tube providing support layer and conductive layer, where support layer is made of material with higher electrical conductivity than material of support layer |
WO2014189491A1 (en) * | 2013-05-21 | 2014-11-27 | Halliburton Energy Serviices, Inc. | High-voltage drilling methods and systems using hybrid drillstring conveyance |
KR102302927B1 (en) | 2013-06-12 | 2021-09-17 | 에머슨 클리메이트 테크놀로지즈 인코퍼레이티드 | In-ceiling liquid desiccant air conditioning system |
US9382785B2 (en) | 2013-06-17 | 2016-07-05 | Baker Hughes Incorporated | Shaped memory devices and method for using same in wellbores |
US9822621B2 (en) | 2013-09-20 | 2017-11-21 | Baker Hughes, A Ge Company, Llc | Method of using surface modifying treatment agents to treat subterranean formations |
US9683431B2 (en) | 2013-09-20 | 2017-06-20 | Baker Hughes Incorporated | Method of using surface modifying metallic treatment agents to treat subterranean formations |
US9701892B2 (en) | 2014-04-17 | 2017-07-11 | Baker Hughes Incorporated | Method of pumping aqueous fluid containing surface modifying treatment agent into a well |
RU2676341C2 (en) | 2013-09-20 | 2018-12-28 | Бейкер Хьюз Инкорпорейтед | Organophosphorus containing composites for use in well treatment operations |
CA2922688C (en) | 2013-09-20 | 2018-10-30 | Baker Hughes Incorporated | Composites for use in stimulation and sand control operations |
EP3046986B1 (en) | 2013-09-20 | 2020-07-22 | Baker Hughes Holdings LLC | Method of inhibiting fouling on a metallic surface using a surface modifying treatment agent |
DE102013018210A1 (en) * | 2013-10-30 | 2015-04-30 | Linde Aktiengesellschaft | Method for producing a coherent ice body in a ground icing |
RU2638598C1 (en) * | 2013-12-30 | 2017-12-14 | Хэллибертон Энерджи Сервисиз, Инк. | Ranging by means of current profiling |
US10597579B2 (en) * | 2014-01-13 | 2020-03-24 | Conocophillips Company | Anti-retention agent in steam-solvent oil recovery |
GB2535927B (en) * | 2014-01-24 | 2020-09-16 | Halliburton Energy Services Inc | Method and criteria for trajectory control |
CA3176275A1 (en) | 2014-02-18 | 2015-08-18 | Athabasca Oil Corporation | Cable-based well heater |
WO2015134974A1 (en) * | 2014-03-07 | 2015-09-11 | Greenfire Energy Inc | Process and method of producing geothermal power |
US9637996B2 (en) | 2014-03-18 | 2017-05-02 | Baker Hughes Incorporated | Downhole uses of nanospring filled elastomers |
WO2015143332A2 (en) | 2014-03-20 | 2015-09-24 | 7Ac Technologies, Inc. | Rooftop liquid desiccant systems and methods |
US9618435B2 (en) * | 2014-03-31 | 2017-04-11 | Dmar Engineering, Inc. | Umbilical bend-testing |
RU2686564C2 (en) | 2014-04-04 | 2019-04-29 | Шелл Интернэшнл Рисерч Маатсхаппий Б.В. | Insulated conductors, formed using the stage of final decrease dimension after thermal treatment |
CA2952871C (en) | 2014-06-19 | 2023-04-04 | Evolution Engineering Inc. | Downhole system with integrated backup sensors |
GB2527847A (en) * | 2014-07-04 | 2016-01-06 | Compactgtl Ltd | Catalytic reactors |
RU2559250C1 (en) * | 2014-08-01 | 2015-08-10 | Олег Васильевич Коломийченко | Bottomhole catalytic assembly for thermal impact on formations containing hydrocarbons and solid organic substances |
US9451792B1 (en) * | 2014-09-05 | 2016-09-27 | Atmos Nation, LLC | Systems and methods for vaporizing assembly |
US9939421B2 (en) * | 2014-09-10 | 2018-04-10 | Saudi Arabian Oil Company | Evaluating effectiveness of ceramic materials for hydrocarbons recovery |
BR112017005431A2 (en) | 2014-09-17 | 2019-05-14 | Garrison Dental Solutions Llc | dental curing light |
RU2569375C1 (en) * | 2014-10-21 | 2015-11-27 | Николай Борисович Болотин | Method and device for heating producing oil-bearing formation |
DE102014223621A1 (en) * | 2014-11-19 | 2016-05-19 | Siemens Aktiengesellschaft | deposit Heating |
EP3221648B1 (en) | 2014-11-21 | 2020-01-08 | 7AC Technologies, Inc. | Liquid desiccant air conditioning system |
AR103391A1 (en) | 2015-01-13 | 2017-05-03 | Bp Corp North America Inc | METHODS AND SYSTEMS TO PRODUCE HYDROCARBONS FROM ROCA HYDROCARBON PRODUCER THROUGH THE COMBINED TREATMENT OF THE ROCK AND INJECTION OF BACK WATER |
RU2591860C1 (en) * | 2015-02-05 | 2016-07-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Южно-Уральский государственный университет" (национальный исследовательский университет) (ФГБОУ ВПО "ЮУрГУ" (НИУ)) | Method of extracting heavy oil from production reservoir and device for its implementation |
FR3032564B1 (en) * | 2015-02-11 | 2017-03-03 | Saipem Sa | METHOD FOR CONNECTING CABLES WITH A UNIT DRIVING SECTION FOR VERTICALLY ASSEMBLING AN UNDERWATER FLUID TRANSPORT DRIVE |
WO2016161439A1 (en) | 2015-04-03 | 2016-10-06 | Yelundur Rama Rau | Apparatus and method of focused in-situ electrical heating of hydrocarbon bearing formations |
WO2016187318A1 (en) * | 2015-05-20 | 2016-11-24 | Saudi Arabian Oil Company | Sampling techniques to detect hydrocarbon seepage |
GB2539045A (en) * | 2015-06-05 | 2016-12-07 | Statoil Asa | Subsurface heater configuration for in situ hydrocarbon production |
US11359338B2 (en) * | 2015-09-01 | 2022-06-14 | Exotex, Inc. | Construction products and systems for providing geothermal heat |
US9556719B1 (en) | 2015-09-10 | 2017-01-31 | Don P. Griffin | Methods for recovering hydrocarbons from shale using thermally-induced microfractures |
CA3003887A1 (en) | 2015-11-06 | 2017-05-11 | Oklahoma Safety Equipment Company, Inc. | Rupture disc device and method of assembly thereof |
US10304591B1 (en) * | 2015-11-18 | 2019-05-28 | Real Power Licensing Corp. | Reel cooling method |
US10117042B2 (en) * | 2015-12-09 | 2018-10-30 | Saudi Arabian Oil Company | Environment-aware cross-layer communication protocol in underground oil reservoirs |
CN106917616B (en) * | 2015-12-28 | 2019-11-08 | 中国石油天然气股份有限公司 | The preheating device and method of heavy crude reservoir |
GB2547672B (en) * | 2016-02-25 | 2018-02-21 | Rejuvetech Ltd | System and method |
US10067201B2 (en) * | 2016-04-14 | 2018-09-04 | Texas Instruments Incorporated | Wiring layout to reduce magnetic field |
WO2017189397A1 (en) | 2016-04-26 | 2017-11-02 | Shell Oil Company | Roller injector for deploying insulated conductor heaters |
GB2550849B (en) * | 2016-05-23 | 2020-06-17 | Equinor Energy As | Interface and integration method for external control of the drilling control system |
US10125588B2 (en) * | 2016-06-30 | 2018-11-13 | Must Holding Llc | Systems and methods for recovering bitumen from subterranean formations |
NO343262B1 (en) * | 2016-07-22 | 2019-01-14 | Norges Miljoe Og Biovitenskapelige Univ Nmbu | Solar thermal collecting and storage |
CN106168119B (en) * | 2016-08-15 | 2018-07-13 | 中国石油天然气股份有限公司 | Downhole electric heating horizontal production well tubular column structure |
CN106292277B (en) * | 2016-08-15 | 2020-01-07 | 上海交通大学 | Subcritical thermal power generating unit coordination control method based on global sliding mode control |
WO2018067713A1 (en) | 2016-10-06 | 2018-04-12 | Shell Oil Company | Subsurface electrical connections for high voltage, low current mineral insulated cable heaters |
WO2018067715A1 (en) | 2016-10-06 | 2018-04-12 | Shell Oil Company | High voltage, low current mineral insulated cable heater |
CN106595113A (en) * | 2016-12-12 | 2017-04-26 | 吉林省联冠石油科技有限公司 | Heat exchange device and method for superconductive heating |
EP3337290B1 (en) * | 2016-12-13 | 2019-11-27 | Nexans | Subsea direct electric heating system |
CN110199009A (en) * | 2017-01-31 | 2019-09-03 | 沙特阿拉伯石油公司 | HIC in situ increases monitoring probe |
US10041163B1 (en) | 2017-02-03 | 2018-08-07 | Ge-Hitachi Nuclear Energy Americas Llc | Plasma spray coating for sealing a defect area in a workpiece |
US20180292133A1 (en) * | 2017-04-05 | 2018-10-11 | Rex Materials Group | Heat treating furnace |
EP3389088A1 (en) * | 2017-04-12 | 2018-10-17 | ABB Schweiz AG | Heat exchanging arrangement and subsea electronic system |
CN107387180B (en) * | 2017-07-17 | 2019-08-20 | 浙江陆特能源科技股份有限公司 | The method of stratum coal slurrying heating system and stratum coal slurrying power generation and heat supply on the spot on the spot |
US10724341B2 (en) | 2017-08-14 | 2020-07-28 | Schlumberger Technology Corporation | Electrical power transmission for well construction apparatus |
US10649427B2 (en) | 2017-08-14 | 2020-05-12 | Schlumberger Technology Corporation | Electrical power transmission for well construction apparatus |
US10697275B2 (en) | 2017-08-14 | 2020-06-30 | Schlumberger Technology Corporation | Electrical power transmission for well construction apparatus |
US10745975B2 (en) | 2017-08-14 | 2020-08-18 | Schlumberger Technology Corporation | Electrical power transmission for well construction apparatus |
US10760348B2 (en) | 2017-08-14 | 2020-09-01 | Schlumberger Technology Corporation | Electrical power transmission for well construction apparatus |
US10699822B2 (en) | 2017-08-14 | 2020-06-30 | Schlumberger Technology Corporation | Electrical power transmission for well construction apparatus |
RU2652909C1 (en) * | 2017-08-28 | 2018-05-03 | Общество с ограниченной ответственностью "Научно-техническая и торгово-промышленная фирма "ТЕХНОПОДЗЕМЭНЕРГО" (ООО "Техноподземэнерго") | Well gas-turbine-nuclear oil-and-gas producing complex (plant) |
US10472953B2 (en) | 2017-09-06 | 2019-11-12 | Schlumberger Technology Corporation | Local electrical room module for well construction apparatus |
US10662709B2 (en) | 2017-09-06 | 2020-05-26 | Schlumberger Technology Corporation | Local electrical room module for well construction apparatus |
US10655292B2 (en) | 2017-09-06 | 2020-05-19 | Schlumberger Technology Corporation | Local electrical room module for well construction apparatus |
ES2884110T3 (en) * | 2017-09-12 | 2021-12-10 | Milano Politecnico | CO2-based mixtures as a working fluid in thermodynamic cycles |
WO2019055670A1 (en) * | 2017-09-13 | 2019-03-21 | Chevron Phillips Chemical Company Lp | Pvdf pipe and methods of making and using same |
US10704371B2 (en) * | 2017-10-13 | 2020-07-07 | Chevron U.S.A. Inc. | Low dielectric zone for hydrocarbon recovery by dielectric heating |
EP3704416B1 (en) | 2017-11-01 | 2023-04-12 | Emerson Climate Technologies, Inc. | Methods and apparatus for uniform distribution of liquid desiccant in membrane modules in liquid desiccant air-conditioning systems |
WO2019089967A1 (en) | 2017-11-01 | 2019-05-09 | 7Ac Technologies, Inc. | Tank system for liquid desiccant air conditioning system |
US20200326028A1 (en) * | 2017-11-06 | 2020-10-15 | Concept Group Llc | Thermally-insulated modules and related methods |
MX2020004909A (en) | 2017-11-13 | 2020-10-05 | Essex Furukawa Magnet Wire Usa Llc | Winding wire articles having internal cavities. |
US11274856B2 (en) * | 2017-11-16 | 2022-03-15 | Ari Peter Berman | Method of deploying a heat exchanger pipe |
RU2669647C1 (en) * | 2017-11-29 | 2018-10-12 | Публичное акционерное общество "Татнефть" имени В.Д. Шашина | Method of mining deposit of high viscous and super viscous oil by thermal methods at late stage of mining |
US10399895B2 (en) * | 2017-12-13 | 2019-09-03 | Pike Technologies Of Wisconsin, Inc. | Bismuth-indium alloy for liquid-tight bonding of optical windows |
US10201042B1 (en) * | 2018-01-19 | 2019-02-05 | Trs Group, Inc. | Flexible helical heater |
CN107991158B (en) * | 2018-01-29 | 2021-11-12 | 山东交通学院 | Bituminous mixture Marshall compaction instrument capable of controlling compaction temperature and test method |
US10822942B2 (en) * | 2018-02-13 | 2020-11-03 | Baker Hughes, A Ge Company, Llc | Telemetry system including a super conductor for a resource exploration and recovery system |
EP3963270B1 (en) * | 2018-02-21 | 2023-06-14 | Me Well Services Petrol Ve Saha Hizmetleri San. Tic. Ltd. Sti. | A gas injection system |
US10137486B1 (en) * | 2018-02-27 | 2018-11-27 | Chevron U.S.A. Inc. | Systems and methods for thermal treatment of contaminated material |
US11149538B2 (en) * | 2018-03-01 | 2021-10-19 | Baker Hughes, A Ge Company, Llc | Systems and methods for determining bending of a drilling tool, the drilling tool having electrical conduit |
US10837248B2 (en) | 2018-04-25 | 2020-11-17 | Skye Buck Technology, LLC. | Method and apparatus for a chemical capsule joint |
US11022330B2 (en) | 2018-05-18 | 2021-06-01 | Emerson Climate Technologies, Inc. | Three-way heat exchangers for liquid desiccant air-conditioning systems and methods of manufacture |
US11555473B2 (en) | 2018-05-29 | 2023-01-17 | Kontak LLC | Dual bladder fuel tank |
US11638331B2 (en) | 2018-05-29 | 2023-04-25 | Kontak LLC | Multi-frequency controllers for inductive heating and associated systems and methods |
US11053775B2 (en) * | 2018-11-16 | 2021-07-06 | Leonid Kovalev | Downhole induction heater |
CN109779625B (en) * | 2019-01-25 | 2022-09-09 | 华北科技学院 | Method and device for prominence prediction based on size distribution condition of coal dust in drill hole |
CN112180815A (en) * | 2019-07-01 | 2021-01-05 | 苏州五蕴明泰科技有限公司 | Method for controlling carbon dioxide emission in waste combustion process |
WO2021026432A1 (en) | 2019-08-07 | 2021-02-11 | Saudi Arabian Oil Company | Determination of geologic permeability correlative with magnetic permeability measured in-situ |
CN110705110B (en) * | 2019-10-09 | 2023-04-14 | 浙江强盛压缩机制造有限公司 | Stress and strain calculation method for high-pressure packing box of large reciprocating compressor |
CN110954676B (en) * | 2019-12-03 | 2021-06-29 | 同济大学 | Visual test device for simulating shield tunneling existing tunnel construction |
US11559847B2 (en) | 2020-01-08 | 2023-01-24 | General Electric Company | Superalloy part and method of processing |
CN111271038A (en) * | 2020-03-12 | 2020-06-12 | 内蒙古科技大学 | Novel coalbed methane yield increasing method for low-permeability coal body |
US10912154B1 (en) | 2020-08-06 | 2021-02-02 | Michael E. Brown | Concrete heating system |
CN112096294A (en) * | 2020-09-13 | 2020-12-18 | 江苏刘一刀精密机械有限公司 | Novel diamond bit of high guidance quality |
CN112252121B (en) * | 2020-11-11 | 2021-11-16 | 浙江八咏新型材料有限责任公司 | Pitch heating melting device is used in town road construction |
US11851996B2 (en) | 2020-12-18 | 2023-12-26 | Jack McIntyre | Oil production system and method |
CN112324409B (en) * | 2020-12-31 | 2021-07-06 | 西南石油大学 | Method for producing solvent in situ in oil layer to recover thick oil |
RU2753290C1 (en) * | 2021-02-10 | 2021-08-12 | Общество с ограниченной ответственностью «АСДМ-Инжиниринг» | Method and system for combating asphalt-resin-paraffin and/or gas hydrate deposits in oil and gas wells |
RU2756155C1 (en) * | 2021-03-04 | 2021-09-28 | Акционерное общество «Зарубежнефть» | Well ring heater |
US11642709B1 (en) | 2021-03-04 | 2023-05-09 | Trs Group, Inc. | Optimized flux ERH electrode |
RU2756152C1 (en) * | 2021-03-04 | 2021-09-28 | Акционерное общество «Зарубежнефть» | Well beam heater |
US11214450B1 (en) * | 2021-03-11 | 2022-01-04 | Cciip Llc | Method of proofing an innerduct/microduct and proofing manifold |
GB202104638D0 (en) * | 2021-03-31 | 2021-05-12 | Head Philip | Bismuth metal to metal encapsulated electrical power cable system for ESP |
US11713651B2 (en) * | 2021-05-11 | 2023-08-01 | Saudi Arabian Oil Company | Heating a formation of the earth while drilling a wellbore |
US11725504B2 (en) | 2021-05-24 | 2023-08-15 | Saudi Arabian Oil Company | Contactless real-time 3D mapping of surface equipment |
US11619097B2 (en) | 2021-05-24 | 2023-04-04 | Saudi Arabian Oil Company | System and method for laser downhole extended sensing |
CN113153250B (en) * | 2021-06-11 | 2021-11-19 | 盐城瑞德石化机械有限公司 | Stable type underground injection allocation device with limiting mechanism |
CN113266327A (en) * | 2021-07-05 | 2021-08-17 | 西南石油大学 | Oil gas underground multifunctional eddy heating device and method |
US11879328B2 (en) | 2021-08-05 | 2024-01-23 | Saudi Arabian Oil Company | Semi-permanent downhole sensor tool |
US20230130169A1 (en) * | 2021-10-26 | 2023-04-27 | Jack McIntyre | Fracturing Hot Rock |
US11860077B2 (en) | 2021-12-14 | 2024-01-02 | Saudi Arabian Oil Company | Fluid flow sensor using driver and reference electromechanical resonators |
CN114300213B (en) * | 2022-01-24 | 2024-01-26 | 中国科学院电工研究所 | High-thermal-conductivity niobium three-tin superconducting coil and manufacturing method thereof |
CN114508336B (en) * | 2022-01-30 | 2022-09-30 | 中国矿业大学 | Drilling, unfreezing and fracturing integrated device and method for soft coal seam |
US11867049B1 (en) | 2022-07-19 | 2024-01-09 | Saudi Arabian Oil Company | Downhole logging tool |
CN115050529B (en) * | 2022-08-15 | 2022-10-21 | 中国工程物理研究院流体物理研究所 | Novel water resistance of high security |
CN115340241A (en) * | 2022-08-27 | 2022-11-15 | 辽宁大学 | Mine water treatment device capable of being recycled |
US11913329B1 (en) | 2022-09-21 | 2024-02-27 | Saudi Arabian Oil Company | Untethered logging devices and related methods of logging a wellbore |
Family Cites Families (1050)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA899987A (en) | 1972-05-09 | Chisso Corporation | Method for controlling heat generation locally in a heat-generating pipe utilizing skin effect current | |
US94813A (en) * | 1869-09-14 | Improvement in torpedoes for oil-wells | ||
US2734579A (en) * | 1956-02-14 | Production from bituminous sands | ||
US345586A (en) | 1886-07-13 | Oil from wells | ||
US1457690A (en) * | 1923-06-05 | Percival iv brine | ||
SE123136C1 (en) | 1948-01-01 | |||
SE126674C1 (en) | 1949-01-01 | |||
US326439A (en) * | 1885-09-15 | Protecting wells | ||
SE123138C1 (en) | 1948-01-01 | |||
US48994A (en) * | 1865-07-25 | Improvement in devices for oil-wells | ||
US2732195A (en) * | 1956-01-24 | Ljungstrom | ||
US760304A (en) | 1903-10-24 | 1904-05-17 | Frank S Gilbert | Heater for oil-wells. |
US1342741A (en) * | 1918-01-17 | 1920-06-08 | David T Day | Process for extracting oils and hydrocarbon material from shale and similar bituminous rocks |
US1269747A (en) | 1918-04-06 | 1918-06-18 | Lebbeus H Rogers | Method of and apparatus for treating oil-shale. |
GB156396A (en) | 1919-12-10 | 1921-01-13 | Wilson Woods Hoover | An improved method of treating shale and recovering oil therefrom |
US1457479A (en) | 1920-01-12 | 1923-06-05 | Edson R Wolcott | Method of increasing the yield of oil wells |
US1477802A (en) * | 1921-02-28 | 1923-12-18 | Cutler Hammer Mfg Co | Oil-well heater |
US1510655A (en) | 1922-11-21 | 1924-10-07 | Clark Cornelius | Process of subterranean distillation of volatile mineral substances |
US1634236A (en) * | 1925-03-10 | 1927-06-28 | Standard Dev Co | Method of and apparatus for recovering oil |
US1646599A (en) | 1925-04-30 | 1927-10-25 | George A Schaefer | Apparatus for removing fluid from wells |
US1811560A (en) * | 1926-04-08 | 1931-06-23 | Standard Oil Dev Co | Method of and apparatus for recovering oil |
US1666488A (en) * | 1927-02-05 | 1928-04-17 | Crawshaw Richard | Apparatus for extracting oil from shale |
US1681523A (en) * | 1927-03-26 | 1928-08-21 | Patrick V Downey | Apparatus for heating oil wells |
US2011710A (en) | 1928-08-18 | 1935-08-20 | Nat Aniline & Chem Co Inc | Apparatus for measuring temperature |
US1913395A (en) | 1929-11-14 | 1933-06-13 | Lewis C Karrick | Underground gasification of carbonaceous material-bearing substances |
US2013838A (en) | 1932-12-27 | 1935-09-10 | Rowland O Pickin | Roller core drilling bit |
US2288857A (en) * | 1937-10-18 | 1942-07-07 | Union Oil Co | Process for the removal of bitumen from bituminous deposits |
US2244255A (en) | 1939-01-18 | 1941-06-03 | Electrical Treating Company | Well clearing system |
US2208087A (en) | 1939-11-06 | 1940-07-16 | Carlton J Somers | Electric heater |
US2244256A (en) * | 1939-12-16 | 1941-06-03 | Electrical Treating Company | Apparatus for clearing wells |
US2249926A (en) | 1940-05-13 | 1941-07-22 | John A Zublin | Nontracking roller bit |
US2319702A (en) | 1941-04-04 | 1943-05-18 | Socony Vacuum Oil Co Inc | Method and apparatus for producing oil wells |
US2365591A (en) | 1942-08-15 | 1944-12-19 | Ranney Leo | Method for producing oil from viscous deposits |
US2423674A (en) * | 1942-08-24 | 1947-07-08 | Johnson & Co A | Process of catalytic cracking of petroleum hydrocarbons |
US2381256A (en) | 1942-10-06 | 1945-08-07 | Texas Co | Process for treating hydrocarbon fractions |
US2390770A (en) * | 1942-10-10 | 1945-12-11 | Sun Oil Co | Method of producing petroleum |
US2484063A (en) | 1944-08-19 | 1949-10-11 | Thermactor Corp | Electric heater for subsurface materials |
US2472445A (en) * | 1945-02-02 | 1949-06-07 | Thermactor Company | Apparatus for treating oil and gas bearing strata |
US2595728A (en) * | 1945-03-09 | 1952-05-06 | Westinghouse Electric Corp | Polysiloxanes containing allyl radicals |
US2481051A (en) | 1945-12-15 | 1949-09-06 | Texaco Development Corp | Process and apparatus for the recovery of volatilizable constituents from underground carbonaceous formations |
US2444755A (en) | 1946-01-04 | 1948-07-06 | Ralph M Steffen | Apparatus for oil sand heating |
US2634961A (en) | 1946-01-07 | 1953-04-14 | Svensk Skifferolje Aktiebolage | Method of electrothermal production of shale oil |
US2466945A (en) * | 1946-02-21 | 1949-04-12 | In Situ Gases Inc | Generation of synthesis gas |
US2500305A (en) | 1946-05-28 | 1950-03-14 | Thermactor Corp | Electric oil well heater |
US2497868A (en) * | 1946-10-10 | 1950-02-21 | Dalin David | Underground exploitation of fuel deposits |
US2939689A (en) | 1947-06-24 | 1960-06-07 | Svenska Skifferolje Ab | Electrical heater for treating oilshale and the like |
US2786660A (en) * | 1948-01-05 | 1957-03-26 | Phillips Petroleum Co | Apparatus for gasifying coal |
US2548360A (en) * | 1948-03-29 | 1951-04-10 | Stanley A Germain | Electric oil well heater |
US2685930A (en) * | 1948-08-12 | 1954-08-10 | Union Oil Co | Oil well production process |
US2630307A (en) * | 1948-12-09 | 1953-03-03 | Carbonic Products Inc | Method of recovering oil from oil shale |
US2595979A (en) | 1949-01-25 | 1952-05-06 | Texas Co | Underground liquefaction of coal |
US2642943A (en) * | 1949-05-20 | 1953-06-23 | Sinclair Oil & Gas Co | Oil recovery process |
US2593477A (en) * | 1949-06-10 | 1952-04-22 | Us Interior | Process of underground gasification of coal |
GB674082A (en) | 1949-06-15 | 1952-06-18 | Nat Res Dev | Improvements in or relating to the underground gasification of coal |
GB676543A (en) | 1949-11-14 | 1952-07-30 | Telegraph Constr & Maintenance | Improvements in the moulding and jointing of thermoplastic materials for example in the jointing of electric cables |
US2670802A (en) * | 1949-12-16 | 1954-03-02 | Thermactor Company | Reviving or increasing the production of clogged or congested oil wells |
US2623596A (en) | 1950-05-16 | 1952-12-30 | Atlantic Refining Co | Method for producing oil by means of carbon dioxide |
US2647196A (en) * | 1950-11-06 | 1953-07-28 | Union Oil Co | Apparatus for heating oil wells |
US2714930A (en) * | 1950-12-08 | 1955-08-09 | Union Oil Co | Apparatus for preventing paraffin deposition |
US2695163A (en) | 1950-12-09 | 1954-11-23 | Stanolind Oil & Gas Co | Method for gasification of subterranean carbonaceous deposits |
US2647306A (en) | 1951-04-14 | 1953-08-04 | John C Hockery | Can opener |
US2630306A (en) * | 1952-01-03 | 1953-03-03 | Socony Vacuum Oil Co Inc | Subterranean retorting of shales |
US2757739A (en) | 1952-01-07 | 1956-08-07 | Parelex Corp | Heating apparatus |
US2777679A (en) * | 1952-03-07 | 1957-01-15 | Svenska Skifferolje Ab | Recovering sub-surface bituminous deposits by creating a frozen barrier and heating in situ |
US2780450A (en) | 1952-03-07 | 1957-02-05 | Svenska Skifferolje Ab | Method of recovering oil and gases from non-consolidated bituminous geological formations by a heating treatment in situ |
US2759877A (en) * | 1952-03-18 | 1956-08-21 | Sinclair Refining Co | Process and separation apparatus for use in the conversions of hydrocarbons |
US2789805A (en) | 1952-05-27 | 1957-04-23 | Svenska Skifferolje Ab | Device for recovering fuel from subterraneous fuel-carrying deposits by heating in their natural location using a chain heat transfer member |
US2761663A (en) * | 1952-09-05 | 1956-09-04 | Louis F Gerdetz | Process of underground gasification of coal |
US2780449A (en) * | 1952-12-26 | 1957-02-05 | Sinclair Oil & Gas Co | Thermal process for in-situ decomposition of oil shale |
US2825408A (en) | 1953-03-09 | 1958-03-04 | Sinclair Oil & Gas Company | Oil recovery by subsurface thermal processing |
US2771954A (en) * | 1953-04-29 | 1956-11-27 | Exxon Research Engineering Co | Treatment of petroleum production wells |
US2703621A (en) * | 1953-05-04 | 1955-03-08 | George W Ford | Oil well bottom hole flow increasing unit |
US2743906A (en) | 1953-05-08 | 1956-05-01 | William E Coyle | Hydraulic underreamer |
US2803305A (en) | 1953-05-14 | 1957-08-20 | Pan American Petroleum Corp | Oil recovery by underground combustion |
US2914309A (en) * | 1953-05-25 | 1959-11-24 | Svenska Skifferolje Ab | Oil and gas recovery from tar sands |
US2902270A (en) * | 1953-07-17 | 1959-09-01 | Svenska Skifferolje Ab | Method of and means in heating of subsurface fuel-containing deposits "in situ" |
US2890754A (en) * | 1953-10-30 | 1959-06-16 | Svenska Skifferolje Ab | Apparatus for recovering combustible substances from subterraneous deposits in situ |
US2890755A (en) * | 1953-12-19 | 1959-06-16 | Svenska Skifferolje Ab | Apparatus for recovering combustible substances from subterraneous deposits in situ |
US2841375A (en) | 1954-03-03 | 1958-07-01 | Svenska Skifferolje Ab | Method for in-situ utilization of fuels by combustion |
US2794504A (en) | 1954-05-10 | 1957-06-04 | Union Oil Co | Well heater |
US2793696A (en) * | 1954-07-22 | 1957-05-28 | Pan American Petroleum Corp | Oil recovery by underground combustion |
US2781851A (en) | 1954-10-11 | 1957-02-19 | Shell Dev | Well tubing heater system |
US2787325A (en) | 1954-12-24 | 1957-04-02 | Pure Oil Co | Selective treatment of geological formations |
US2801699A (en) | 1954-12-24 | 1957-08-06 | Pure Oil Co | Process for temporarily and selectively sealing a well |
US2923535A (en) | 1955-02-11 | 1960-02-02 | Svenska Skifferolje Ab | Situ recovery from carbonaceous deposits |
US2799341A (en) | 1955-03-04 | 1957-07-16 | Union Oil Co | Selective plugging in oil wells |
US2801089A (en) | 1955-03-14 | 1957-07-30 | California Research Corp | Underground shale retorting process |
US2818118A (en) * | 1955-12-19 | 1957-12-31 | Phillips Petroleum Co | Production of oil by in situ combustion |
US2862558A (en) * | 1955-12-28 | 1958-12-02 | Phillips Petroleum Co | Recovering oils from formations |
US2819761A (en) * | 1956-01-19 | 1958-01-14 | Continental Oil Co | Process of removing viscous oil from a well bore |
US2857002A (en) | 1956-03-19 | 1958-10-21 | Texas Co | Recovery of viscous crude oil |
US2906340A (en) * | 1956-04-05 | 1959-09-29 | Texaco Inc | Method of treating a petroleum producing formation |
US2991046A (en) * | 1956-04-16 | 1961-07-04 | Parsons Lional Ashley | Combined winch and bollard device |
US2889882A (en) | 1956-06-06 | 1959-06-09 | Phillips Petroleum Co | Oil recovery by in situ combustion |
US3120264A (en) | 1956-07-09 | 1964-02-04 | Texaco Development Corp | Recovery of oil by in situ combustion |
US3016053A (en) | 1956-08-02 | 1962-01-09 | George J Medovick | Underwater breathing apparatus |
US2997105A (en) * | 1956-10-08 | 1961-08-22 | Pan American Petroleum Corp | Burner apparatus |
US2932352A (en) * | 1956-10-25 | 1960-04-12 | Union Oil Co | Liquid filled well heater |
US2804149A (en) | 1956-12-12 | 1957-08-27 | John R Donaldson | Oil well heater and reviver |
US3127936A (en) * | 1957-07-26 | 1964-04-07 | Svenska Skifferolje Ab | Method of in situ heating of subsurface preferably fuel containing deposits |
US2942223A (en) | 1957-08-09 | 1960-06-21 | Gen Electric | Electrical resistance heater |
US2906337A (en) | 1957-08-16 | 1959-09-29 | Pure Oil Co | Method of recovering bitumen |
US3080918A (en) * | 1957-08-29 | 1963-03-12 | Richfield Oil Corp | Petroleum recovery from subsurface oil bearing formation |
US3007521A (en) * | 1957-10-28 | 1961-11-07 | Phillips Petroleum Co | Recovery of oil by in situ combustion |
US3010516A (en) * | 1957-11-18 | 1961-11-28 | Phillips Petroleum Co | Burner and process for in situ combustion |
US2954826A (en) * | 1957-12-02 | 1960-10-04 | William E Sievers | Heated well production string |
GB876401A (en) * | 1957-12-23 | 1961-08-30 | Exxon Research Engineering Co | Moving bed nuclear reactor for process irradiation |
US3085957A (en) * | 1957-12-26 | 1963-04-16 | Richfield Oil Corp | Nuclear reactor for heating a subsurface stratum |
US2994376A (en) * | 1957-12-27 | 1961-08-01 | Phillips Petroleum Co | In situ combustion process |
US3061009A (en) | 1958-01-17 | 1962-10-30 | Svenska Skifferolje Ab | Method of recovery from fossil fuel bearing strata |
US3062282A (en) | 1958-01-24 | 1962-11-06 | Phillips Petroleum Co | Initiation of in situ combustion in a carbonaceous stratum |
US3051235A (en) | 1958-02-24 | 1962-08-28 | Jersey Prod Res Co | Recovery of petroleum crude oil, by in situ combustion and in situ hydrogenation |
US3004603A (en) * | 1958-03-07 | 1961-10-17 | Phillips Petroleum Co | Heater |
US3032102A (en) | 1958-03-17 | 1962-05-01 | Phillips Petroleum Co | In situ combustion method |
US3079995A (en) * | 1958-04-16 | 1963-03-05 | Richfield Oil Corp | Petroleum recovery from subsurface oil-bearing formation |
US3004601A (en) * | 1958-05-09 | 1961-10-17 | Albert G Bodine | Method and apparatus for augmenting oil recovery from wells by refrigeration |
US3048221A (en) | 1958-05-12 | 1962-08-07 | Phillips Petroleum Co | Hydrocarbon recovery by thermal drive |
US3026940A (en) | 1958-05-19 | 1962-03-27 | Electronic Oil Well Heater Inc | Oil well temperature indicator and control |
US3010513A (en) * | 1958-06-12 | 1961-11-28 | Phillips Petroleum Co | Initiation of in situ combustion in carbonaceous stratum |
US2958519A (en) * | 1958-06-23 | 1960-11-01 | Phillips Petroleum Co | In situ combustion process |
US3044545A (en) * | 1958-10-02 | 1962-07-17 | Phillips Petroleum Co | In situ combustion process |
US3050123A (en) | 1958-10-07 | 1962-08-21 | Cities Service Res & Dev Co | Gas fired oil-well burner |
US2950240A (en) * | 1958-10-10 | 1960-08-23 | Socony Mobil Oil Co Inc | Selective cracking of aliphatic hydrocarbons |
US2974937A (en) * | 1958-11-03 | 1961-03-14 | Jersey Prod Res Co | Petroleum recovery from carbonaceous formations |
US2998457A (en) * | 1958-11-19 | 1961-08-29 | Ashland Oil Inc | Production of phenols |
US2970826A (en) | 1958-11-21 | 1961-02-07 | Texaco Inc | Recovery of oil from oil shale |
US3097690A (en) | 1958-12-24 | 1963-07-16 | Gulf Research Development Co | Process for heating a subsurface formation |
US3036632A (en) | 1958-12-24 | 1962-05-29 | Socony Mobil Oil Co Inc | Recovery of hydrocarbon materials from earth formations by application of heat |
US2937228A (en) | 1958-12-29 | 1960-05-17 | Robinson Machine Works Inc | Coaxial cable splice |
US2969226A (en) | 1959-01-19 | 1961-01-24 | Pyrochem Corp | Pendant parting petro pyrolysis process |
US3017168A (en) | 1959-01-26 | 1962-01-16 | Phillips Petroleum Co | In situ retorting of oil shale |
US3110345A (en) | 1959-02-26 | 1963-11-12 | Gulf Research Development Co | Low temperature reverse combustion process |
US3113619A (en) | 1959-03-30 | 1963-12-10 | Phillips Petroleum Co | Line drive counterflow in situ combustion process |
US3113620A (en) | 1959-07-06 | 1963-12-10 | Exxon Research Engineering Co | Process for producing viscous oil |
US3113623A (en) * | 1959-07-20 | 1963-12-10 | Union Oil Co | Apparatus for underground retorting |
US3181613A (en) | 1959-07-20 | 1965-05-04 | Union Oil Co | Method and apparatus for subterranean heating |
US3132692A (en) | 1959-07-27 | 1964-05-12 | Phillips Petroleum Co | Use of formation heat from in situ combustion |
US3116792A (en) | 1959-07-27 | 1964-01-07 | Phillips Petroleum Co | In situ combustion process |
US3150715A (en) | 1959-09-30 | 1964-09-29 | Shell Oil Co | Oil recovery by in situ combustion with water injection |
US3095031A (en) | 1959-12-09 | 1963-06-25 | Eurenius Malte Oscar | Burners for use in bore holes in the ground |
US3131763A (en) * | 1959-12-30 | 1964-05-05 | Texaco Inc | Electrical borehole heater |
US3220479A (en) | 1960-02-08 | 1965-11-30 | Exxon Production Research Co | Formation stabilization system |
US3163745A (en) | 1960-02-29 | 1964-12-29 | Socony Mobil Oil Co Inc | Heating of an earth formation penetrated by a well borehole |
US3127935A (en) | 1960-04-08 | 1964-04-07 | Marathon Oil Co | In situ combustion for oil recovery in tar sands, oil shales and conventional petroleum reservoirs |
US3137347A (en) | 1960-05-09 | 1964-06-16 | Phillips Petroleum Co | In situ electrolinking of oil shale |
US3139928A (en) * | 1960-05-24 | 1964-07-07 | Shell Oil Co | Thermal process for in situ decomposition of oil shale |
US3106244A (en) | 1960-06-20 | 1963-10-08 | Phillips Petroleum Co | Process for producing oil shale in situ by electrocarbonization |
US3142336A (en) | 1960-07-18 | 1964-07-28 | Shell Oil Co | Method and apparatus for injecting steam into subsurface formations |
US3105545A (en) * | 1960-11-21 | 1963-10-01 | Shell Oil Co | Method of heating underground formations |
US3164207A (en) | 1961-01-17 | 1965-01-05 | Wayne H Thessen | Method for recovering oil |
US3138203A (en) | 1961-03-06 | 1964-06-23 | Jersey Prod Res Co | Method of underground burning |
US3191679A (en) | 1961-04-13 | 1965-06-29 | Wendell S Miller | Melting process for recovering bitumens from the earth |
US3207220A (en) | 1961-06-26 | 1965-09-21 | Chester I Williams | Electric well heater |
US3114417A (en) * | 1961-08-14 | 1963-12-17 | Ernest T Saftig | Electric oil well heater apparatus |
US3246695A (en) | 1961-08-21 | 1966-04-19 | Charles L Robinson | Method for heating minerals in situ with radioactive materials |
US3057404A (en) | 1961-09-29 | 1962-10-09 | Socony Mobil Oil Co Inc | Method and system for producing oil tenaciously held in porous formations |
US3183675A (en) * | 1961-11-02 | 1965-05-18 | Conch Int Methane Ltd | Method of freezing an earth formation |
US3170842A (en) | 1961-11-06 | 1965-02-23 | Phillips Petroleum Co | Subcritical borehole nuclear reactor and process |
US3209825A (en) * | 1962-02-14 | 1965-10-05 | Continental Oil Co | Low temperature in-situ combustion |
US3205946A (en) * | 1962-03-12 | 1965-09-14 | Shell Oil Co | Consolidation by silica coalescence |
US3141924A (en) | 1962-03-16 | 1964-07-21 | Amp Inc | Coaxial cable shield braid terminators |
US3165154A (en) | 1962-03-23 | 1965-01-12 | Phillips Petroleum Co | Oil recovery by in situ combustion |
US3149670A (en) | 1962-03-27 | 1964-09-22 | Smclair Res Inc | In-situ heating process |
US3149672A (en) * | 1962-05-04 | 1964-09-22 | Jersey Prod Res Co | Method and apparatus for electrical heating of oil-bearing formations |
US3208531A (en) | 1962-08-21 | 1965-09-28 | Otis Eng Co | Inserting tool for locating and anchoring a device in tubing |
US3182721A (en) | 1962-11-02 | 1965-05-11 | Sun Oil Co | Method of petroleum production by forward in situ combustion |
US3288648A (en) | 1963-02-04 | 1966-11-29 | Pan American Petroleum Corp | Process for producing electrical energy from geological liquid hydrocarbon formation |
US3205942A (en) | 1963-02-07 | 1965-09-14 | Socony Mobil Oil Co Inc | Method for recovery of hydrocarbons by in situ heating of oil shale |
US3221505A (en) | 1963-02-20 | 1965-12-07 | Gulf Research Development Co | Grouting method |
US3221811A (en) | 1963-03-11 | 1965-12-07 | Shell Oil Co | Mobile in-situ heating of formations |
US3250327A (en) | 1963-04-02 | 1966-05-10 | Socony Mobil Oil Co Inc | Recovering nonflowing hydrocarbons |
US3241611A (en) | 1963-04-10 | 1966-03-22 | Equity Oil Company | Recovery of petroleum products from oil shale |
GB959945A (en) | 1963-04-18 | 1964-06-03 | Conch Int Methane Ltd | Constructing a frozen wall within the ground |
US3237689A (en) | 1963-04-29 | 1966-03-01 | Clarence I Justheim | Distillation of underground deposits of solid carbonaceous materials in situ |
US3205944A (en) * | 1963-06-14 | 1965-09-14 | Socony Mobil Oil Co Inc | Recovery of hydrocarbons from a subterranean reservoir by heating |
US3233668A (en) | 1963-11-15 | 1966-02-08 | Exxon Production Research Co | Recovery of shale oil |
US3285335A (en) | 1963-12-11 | 1966-11-15 | Exxon Research Engineering Co | In situ pyrolysis of oil shale formations |
US3273640A (en) | 1963-12-13 | 1966-09-20 | Pyrochem Corp | Pressure pulsing perpendicular permeability process for winning stabilized primary volatiles from oil shale in situ |
US3272261A (en) | 1963-12-13 | 1966-09-13 | Gulf Research Development Co | Process for recovery of oil |
US3303883A (en) | 1964-01-06 | 1967-02-14 | Mobil Oil Corp | Thermal notching technique |
US3275076A (en) | 1964-01-13 | 1966-09-27 | Mobil Oil Corp | Recovery of asphaltic-type petroleum from a subterranean reservoir |
US3342258A (en) | 1964-03-06 | 1967-09-19 | Shell Oil Co | Underground oil recovery from solid oil-bearing deposits |
US3294167A (en) | 1964-04-13 | 1966-12-27 | Shell Oil Co | Thermal oil recovery |
US3284281A (en) | 1964-08-31 | 1966-11-08 | Phillips Petroleum Co | Production of oil from oil shale through fractures |
US3302707A (en) * | 1964-09-30 | 1967-02-07 | Mobil Oil Corp | Method for improving fluid recoveries from earthen formations |
US3310109A (en) | 1964-11-06 | 1967-03-21 | Phillips Petroleum Co | Process and apparatus for combination upgrading of oil in situ and refining thereof |
US3380913A (en) | 1964-12-28 | 1968-04-30 | Phillips Petroleum Co | Refining of effluent from in situ combustion operation |
US3262500A (en) * | 1965-03-01 | 1966-07-26 | Beehler Vernon D | Hot water flood system for oil wells |
US3332480A (en) | 1965-03-04 | 1967-07-25 | Pan American Petroleum Corp | Recovery of hydrocarbons by thermal methods |
US3338306A (en) | 1965-03-09 | 1967-08-29 | Mobil Oil Corp | Recovery of heavy oil from oil sands |
US3358756A (en) | 1965-03-12 | 1967-12-19 | Shell Oil Co | Method for in situ recovery of solid or semi-solid petroleum deposits |
US3299202A (en) | 1965-04-02 | 1967-01-17 | Okonite Co | Oil well cable |
DE1242535B (en) | 1965-04-13 | 1967-06-22 | Deutsche Erdoel Ag | Process for the removal of residual oil from oil deposits |
US3316344A (en) | 1965-04-26 | 1967-04-25 | Central Electr Generat Board | Prevention of icing of electrical conductors |
US3342267A (en) | 1965-04-29 | 1967-09-19 | Gerald S Cotter | Turbo-generator heater for oil and gas wells and pipe lines |
US3352355A (en) | 1965-06-23 | 1967-11-14 | Dow Chemical Co | Method of recovery of hydrocarbons from solid hydrocarbonaceous formations |
US3346044A (en) | 1965-09-08 | 1967-10-10 | Mobil Oil Corp | Method and structure for retorting oil shale in situ by cycling fluid flows |
US3349845A (en) | 1965-10-22 | 1967-10-31 | Sinclair Oil & Gas Company | Method of establishing communication between wells |
US3386515A (en) * | 1965-12-03 | 1968-06-04 | Dresser Ind | Well completion apparatus |
US3379248A (en) | 1965-12-10 | 1968-04-23 | Mobil Oil Corp | In situ combustion process utilizing waste heat |
US3386508A (en) | 1966-02-21 | 1968-06-04 | Exxon Production Research Co | Process and system for the recovery of viscous oil |
US3362751A (en) | 1966-02-28 | 1968-01-09 | Tinlin William | Method and system for recovering shale oil and gas |
US3595082A (en) * | 1966-03-04 | 1971-07-27 | Gulf Oil Corp | Temperature measuring apparatus |
US3410977A (en) | 1966-03-28 | 1968-11-12 | Ando Masao | Method of and apparatus for heating the surface part of various construction materials |
DE1615192B1 (en) | 1966-04-01 | 1970-08-20 | Chisso Corp | Inductively heated heating pipe |
US3410796A (en) | 1966-04-04 | 1968-11-12 | Gas Processors Inc | Process for treatment of saline waters |
US3513913A (en) | 1966-04-19 | 1970-05-26 | Shell Oil Co | Oil recovery from oil shales by transverse combustion |
US3372754A (en) | 1966-05-31 | 1968-03-12 | Mobil Oil Corp | Well assembly for heating a subterranean formation |
US3399623A (en) | 1966-07-14 | 1968-09-03 | James R. Creed | Apparatus for and method of producing viscid oil |
US3428125A (en) * | 1966-07-25 | 1969-02-18 | Phillips Petroleum Co | Hydro-electropyrolysis of oil shale in situ |
US3412011A (en) | 1966-09-02 | 1968-11-19 | Phillips Petroleum Co | Catalytic cracking and in situ combustion process for producing hydrocarbons |
NL153755C (en) | 1966-10-20 | 1977-11-15 | Stichting Reactor Centrum | METHOD FOR MANUFACTURING AN ELECTRIC HEATING ELEMENT, AS WELL AS HEATING ELEMENT MANUFACTURED USING THIS METHOD. |
US3465819A (en) | 1967-02-13 | 1969-09-09 | American Oil Shale Corp | Use of nuclear detonations in producing hydrocarbons from an underground formation |
US3389975A (en) | 1967-03-10 | 1968-06-25 | Sinclair Research Inc | Process for the recovery of aluminum values from retorted shale and conversion of sodium aluminate to sodium aluminum carbonate hydroxide |
NL6803827A (en) | 1967-03-22 | 1968-09-23 | ||
US3515213A (en) | 1967-04-19 | 1970-06-02 | Shell Oil Co | Shale oil recovery process using heated oil-miscible fluids |
US3598182A (en) * | 1967-04-25 | 1971-08-10 | Justheim Petroleum Co | Method and apparatus for in situ distillation and hydrogenation of carbonaceous materials |
US3474863A (en) * | 1967-07-28 | 1969-10-28 | Shell Oil Co | Shale oil extraction process |
US3528501A (en) | 1967-08-04 | 1970-09-15 | Phillips Petroleum Co | Recovery of oil from oil shale |
US3480082A (en) | 1967-09-25 | 1969-11-25 | Continental Oil Co | In situ retorting of oil shale using co2 as heat carrier |
US3434541A (en) | 1967-10-11 | 1969-03-25 | Mobil Oil Corp | In situ combustion process |
NL154577B (en) * | 1967-11-15 | 1977-09-15 | Shell Int Research | PROCEDURE FOR THE WINNING OF HYDROCARBONS FROM A PERMEABLE UNDERGROUND FORMATION. |
US3485300A (en) | 1967-12-20 | 1969-12-23 | Phillips Petroleum Co | Method and apparatus for defoaming crude oil down hole |
US3477058A (en) | 1968-02-01 | 1969-11-04 | Gen Electric | Magnesia insulated heating elements and methods of production |
US3580987A (en) | 1968-03-26 | 1971-05-25 | Pirelli | Electric cable |
US3487753A (en) | 1968-04-10 | 1970-01-06 | Dresser Ind | Well swab cup |
US3455383A (en) | 1968-04-24 | 1969-07-15 | Shell Oil Co | Method of producing fluidized material from a subterranean formation |
US3578080A (en) | 1968-06-10 | 1971-05-11 | Shell Oil Co | Method of producing shale oil from an oil shale formation |
US3529682A (en) | 1968-10-03 | 1970-09-22 | Bell Telephone Labor Inc | Location detection and guidance systems for burrowing device |
US3537528A (en) | 1968-10-14 | 1970-11-03 | Shell Oil Co | Method for producing shale oil from an exfoliated oil shale formation |
US3593789A (en) | 1968-10-18 | 1971-07-20 | Shell Oil Co | Method for producing shale oil from an oil shale formation |
US3565171A (en) | 1968-10-23 | 1971-02-23 | Shell Oil Co | Method for producing shale oil from a subterranean oil shale formation |
US3502372A (en) | 1968-10-23 | 1970-03-24 | Shell Oil Co | Process of recovering oil and dawsonite from oil shale |
US3554285A (en) | 1968-10-24 | 1971-01-12 | Phillips Petroleum Co | Production and upgrading of heavy viscous oils |
US3629551A (en) | 1968-10-29 | 1971-12-21 | Chisso Corp | Controlling heat generation locally in a heat-generating pipe utilizing skin-effect current |
US3501201A (en) | 1968-10-30 | 1970-03-17 | Shell Oil Co | Method of producing shale oil from a subterranean oil shale formation |
US3617471A (en) | 1968-12-26 | 1971-11-02 | Texaco Inc | Hydrotorting of shale to produce shale oil |
US3562401A (en) | 1969-03-03 | 1971-02-09 | Union Carbide Corp | Low temperature electric transmission systems |
US3614986A (en) | 1969-03-03 | 1971-10-26 | Electrothermic Co | Method for injecting heated fluids into mineral bearing formations |
US3542131A (en) | 1969-04-01 | 1970-11-24 | Mobil Oil Corp | Method of recovering hydrocarbons from oil shale |
US3547192A (en) | 1969-04-04 | 1970-12-15 | Shell Oil Co | Method of metal coating and electrically heating a subterranean earth formation |
US3618663A (en) | 1969-05-01 | 1971-11-09 | Phillips Petroleum Co | Shale oil production |
US3605890A (en) | 1969-06-04 | 1971-09-20 | Chevron Res | Hydrogen production from a kerogen-depleted shale formation |
US3526095A (en) | 1969-07-24 | 1970-09-01 | Ralph E Peck | Liquid gas storage system |
DE1939402B2 (en) | 1969-08-02 | 1970-12-03 | Felten & Guilleaume Kabelwerk | Method and device for corrugating pipe walls |
US3599714A (en) | 1969-09-08 | 1971-08-17 | Roger L Messman | Method of recovering hydrocarbons by in situ combustion |
US3547193A (en) | 1969-10-08 | 1970-12-15 | Electrothermic Co | Method and apparatus for recovery of minerals from sub-surface formations using electricity |
US3661423A (en) | 1970-02-12 | 1972-05-09 | Occidental Petroleum Corp | In situ process for recovery of carbonaceous materials from subterranean deposits |
US3943160A (en) | 1970-03-09 | 1976-03-09 | Shell Oil Company | Heat-stable calcium-compatible waterflood surfactant |
US3647358A (en) | 1970-07-23 | 1972-03-07 | Anti Pollution Systems | Method of catalytically inducing oxidation of carbonaceous materials by the use of molten salts |
US3657520A (en) * | 1970-08-20 | 1972-04-18 | Michel A Ragault | Heating cable with cold outlets |
US3759574A (en) | 1970-09-24 | 1973-09-18 | Shell Oil Co | Method of producing hydrocarbons from an oil shale formation |
US4305463A (en) | 1979-10-31 | 1981-12-15 | Oil Trieval Corporation | Oil recovery method and apparatus |
US3703929A (en) * | 1970-11-06 | 1972-11-28 | Union Oil Co | Well for transporting hot fluids through a permafrost zone |
US3679812A (en) | 1970-11-13 | 1972-07-25 | Schlumberger Technology Corp | Electrical suspension cable for well tools |
US3680633A (en) | 1970-12-28 | 1972-08-01 | Sun Oil Co Delaware | Situ combustion initiation process |
US3675715A (en) | 1970-12-30 | 1972-07-11 | Forrester A Clark | Processes for secondarily recovering oil |
US3700280A (en) | 1971-04-28 | 1972-10-24 | Shell Oil Co | Method of producing oil from an oil shale formation containing nahcolite and dawsonite |
US3770398A (en) | 1971-09-17 | 1973-11-06 | Cities Service Oil Co | In situ coal gasification process |
US3743854A (en) | 1971-09-29 | 1973-07-03 | Gen Electric | System and apparatus for dual transmission of petrochemical fluids and unidirectional electric current |
US3812913A (en) | 1971-10-18 | 1974-05-28 | Sun Oil Co | Method of formation consolidation |
US3782465A (en) * | 1971-11-09 | 1974-01-01 | Electro Petroleum | Electro-thermal process for promoting oil recovery |
US3893918A (en) | 1971-11-22 | 1975-07-08 | Engineering Specialties Inc | Method for separating material leaving a well |
US3844352A (en) | 1971-12-17 | 1974-10-29 | Brown Oil Tools | Method for modifying a well to provide gas lift production |
US3766982A (en) | 1971-12-27 | 1973-10-23 | Justheim Petrol Co | Method for the in-situ treatment of hydrocarbonaceous materials |
US3759328A (en) | 1972-05-11 | 1973-09-18 | Shell Oil Co | Laterally expanding oil shale permeabilization |
US3794116A (en) | 1972-05-30 | 1974-02-26 | Atomic Energy Commission | Situ coal bed gasification |
US3779602A (en) | 1972-08-07 | 1973-12-18 | Shell Oil Co | Process for solution mining nahcolite |
US3757860A (en) | 1972-08-07 | 1973-09-11 | Atlantic Richfield Co | Well heating |
US3761599A (en) | 1972-09-05 | 1973-09-25 | Gen Electric | Means for reducing eddy current heating of a tank in electric apparatus |
US3809159A (en) | 1972-10-02 | 1974-05-07 | Continental Oil Co | Process for simultaneously increasing recovery and upgrading oil in a reservoir |
US3804172A (en) | 1972-10-11 | 1974-04-16 | Shell Oil Co | Method for the recovery of oil from oil shale |
US3794113A (en) | 1972-11-13 | 1974-02-26 | Mobil Oil Corp | Combination in situ combustion displacement and steam stimulation of producing wells |
US3804169A (en) | 1973-02-07 | 1974-04-16 | Shell Oil Co | Spreading-fluid recovery of subterranean oil |
US3896260A (en) | 1973-04-03 | 1975-07-22 | Walter A Plummer | Powder filled cable splice assembly |
US3947683A (en) | 1973-06-05 | 1976-03-30 | Texaco Inc. | Combination of epithermal and inelastic neutron scattering methods to locate coal and oil shale zones |
US3859503A (en) * | 1973-06-12 | 1975-01-07 | Richard D Palone | Electric heated sucker rod |
US4076761A (en) | 1973-08-09 | 1978-02-28 | Mobil Oil Corporation | Process for the manufacture of gasoline |
US3881551A (en) | 1973-10-12 | 1975-05-06 | Ruel C Terry | Method of extracting immobile hydrocarbons |
US3907045A (en) | 1973-11-30 | 1975-09-23 | Continental Oil Co | Guidance system for a horizontal drilling apparatus |
US3853185A (en) | 1973-11-30 | 1974-12-10 | Continental Oil Co | Guidance system for a horizontal drilling apparatus |
US3882941A (en) | 1973-12-17 | 1975-05-13 | Cities Service Res & Dev Co | In situ production of bitumen from oil shale |
US3946812A (en) * | 1974-01-02 | 1976-03-30 | Exxon Production Research Company | Use of materials as waterflood additives |
US4199025A (en) | 1974-04-19 | 1980-04-22 | Electroflood Company | Method and apparatus for tertiary recovery of oil |
US4037655A (en) | 1974-04-19 | 1977-07-26 | Electroflood Company | Method for secondary recovery of oil |
US3922148A (en) | 1974-05-16 | 1975-11-25 | Texaco Development Corp | Production of methane-rich gas |
ZA753184B (en) | 1974-05-31 | 1976-04-28 | Standard Oil Co | Process for recovering upgraded hydrocarbon products |
US3948755A (en) | 1974-05-31 | 1976-04-06 | Standard Oil Company | Process for recovering and upgrading hydrocarbons from oil shale and tar sands |
US3894769A (en) | 1974-06-06 | 1975-07-15 | Shell Oil Co | Recovering oil from a subterranean carbonaceous formation |
US3892270A (en) | 1974-06-06 | 1975-07-01 | Chevron Res | Production of hydrocarbons from underground formations |
GB1507675A (en) | 1974-06-21 | 1978-04-19 | Pyrotenax Of Ca Ltd | Heating cables and manufacture thereof |
US4006778A (en) | 1974-06-21 | 1977-02-08 | Texaco Exploration Canada Ltd. | Thermal recovery of hydrocarbon from tar sands |
US4026357A (en) | 1974-06-26 | 1977-05-31 | Texaco Exploration Canada Ltd. | In situ gasification of solid hydrocarbon materials in a subterranean formation |
US3935911A (en) | 1974-06-28 | 1976-02-03 | Dresser Industries, Inc. | Earth boring bit with means for conducting heat from the bit's bearings |
US4029360A (en) | 1974-07-26 | 1977-06-14 | Occidental Oil Shale, Inc. | Method of recovering oil and water from in situ oil shale retort flue gas |
US4005752A (en) | 1974-07-26 | 1977-02-01 | Occidental Petroleum Corporation | Method of igniting in situ oil shale retort with fuel rich flue gas |
US4014575A (en) | 1974-07-26 | 1977-03-29 | Occidental Petroleum Corporation | System for fuel and products of oil shale retort |
US3941421A (en) | 1974-08-13 | 1976-03-02 | Occidental Petroleum Corporation | Apparatus for obtaining uniform gas flow through an in situ oil shale retort |
GB1454324A (en) | 1974-08-14 | 1976-11-03 | Iniex | Recovering combustible gases from underground deposits of coal or bituminous shale |
US3948319A (en) | 1974-10-16 | 1976-04-06 | Atlantic Richfield Company | Method and apparatus for producing fluid by varying current flow through subterranean source formation |
AR205595A1 (en) | 1974-11-06 | 1976-05-14 | Haldor Topsoe As | PROCEDURE FOR PREPARING GASES RICH IN METHANE |
US3933447A (en) | 1974-11-08 | 1976-01-20 | The United States Of America As Represented By The United States Energy Research And Development Administration | Underground gasification of coal |
US4138442A (en) | 1974-12-05 | 1979-02-06 | Mobil Oil Corporation | Process for the manufacture of gasoline |
US3952802A (en) | 1974-12-11 | 1976-04-27 | In Situ Technology, Inc. | Method and apparatus for in situ gasification of coal and the commercial products derived therefrom |
US3986556A (en) | 1975-01-06 | 1976-10-19 | Haynes Charles A | Hydrocarbon recovery from earth strata |
US3958636A (en) | 1975-01-23 | 1976-05-25 | Atlantic Richfield Company | Production of bitumen from a tar sand formation |
US4042026A (en) | 1975-02-08 | 1977-08-16 | Deutsche Texaco Aktiengesellschaft | Method for initiating an in-situ recovery process by the introduction of oxygen |
US3972372A (en) | 1975-03-10 | 1976-08-03 | Fisher Sidney T | Exraction of hydrocarbons in situ from underground hydrocarbon deposits |
US4096163A (en) | 1975-04-08 | 1978-06-20 | Mobil Oil Corporation | Conversion of synthesis gas to hydrocarbon mixtures |
US3924680A (en) | 1975-04-23 | 1975-12-09 | In Situ Technology Inc | Method of pyrolysis of coal in situ |
US3973628A (en) | 1975-04-30 | 1976-08-10 | New Mexico Tech Research Foundation | In situ solution mining of coal |
US4016239A (en) | 1975-05-22 | 1977-04-05 | Union Oil Company Of California | Recarbonation of spent oil shale |
US3987851A (en) | 1975-06-02 | 1976-10-26 | Shell Oil Company | Serially burning and pyrolyzing to produce shale oil from a subterranean oil shale |
US3986557A (en) | 1975-06-06 | 1976-10-19 | Atlantic Richfield Company | Production of bitumen from tar sands |
US3950029A (en) | 1975-06-12 | 1976-04-13 | Mobil Oil Corporation | In situ retorting of oil shale |
US3993132A (en) * | 1975-06-18 | 1976-11-23 | Texaco Exploration Canada Ltd. | Thermal recovery of hydrocarbons from tar sands |
US4069868A (en) | 1975-07-14 | 1978-01-24 | In Situ Technology, Inc. | Methods of fluidized production of coal in situ |
US4199024A (en) | 1975-08-07 | 1980-04-22 | World Energy Systems | Multistage gas generator |
US3954140A (en) | 1975-08-13 | 1976-05-04 | Hendrick Robert P | Recovery of hydrocarbons by in situ thermal extraction |
US3986349A (en) * | 1975-09-15 | 1976-10-19 | Chevron Research Company | Method of power generation via coal gasification and liquid hydrocarbon synthesis |
US4037658A (en) | 1975-10-30 | 1977-07-26 | Chevron Research Company | Method of recovering viscous petroleum from an underground formation |
US3994340A (en) | 1975-10-30 | 1976-11-30 | Chevron Research Company | Method of recovering viscous petroleum from tar sand |
US3994341A (en) | 1975-10-30 | 1976-11-30 | Chevron Research Company | Recovering viscous petroleum from thick tar sand |
US4087130A (en) | 1975-11-03 | 1978-05-02 | Occidental Petroleum Corporation | Process for the gasification of coal in situ |
US4018279A (en) | 1975-11-12 | 1977-04-19 | Reynolds Merrill J | In situ coal combustion heat recovery method |
US4018280A (en) * | 1975-12-10 | 1977-04-19 | Mobil Oil Corporation | Process for in situ retorting of oil shale |
US3992474A (en) | 1975-12-15 | 1976-11-16 | Uop Inc. | Motor fuel production with fluid catalytic cracking of high-boiling alkylate |
US4019575A (en) | 1975-12-22 | 1977-04-26 | Chevron Research Company | System for recovering viscous petroleum from thick tar sand |
US3999607A (en) | 1976-01-22 | 1976-12-28 | Exxon Research And Engineering Company | Recovery of hydrocarbons from coal |
US4031956A (en) | 1976-02-12 | 1977-06-28 | In Situ Technology, Inc. | Method of recovering energy from subsurface petroleum reservoirs |
US4008762A (en) * | 1976-02-26 | 1977-02-22 | Fisher Sidney T | Extraction of hydrocarbons in situ from underground hydrocarbon deposits |
US4010800A (en) | 1976-03-08 | 1977-03-08 | In Situ Technology, Inc. | Producing thin seams of coal in situ |
US4048637A (en) | 1976-03-23 | 1977-09-13 | Westinghouse Electric Corporation | Radar system for detecting slowly moving targets |
DE2615874B2 (en) | 1976-04-10 | 1978-10-19 | Deutsche Texaco Ag, 2000 Hamburg | Application of a method for extracting crude oil and bitumen from underground deposits by means of a combustion front in deposits of any content of intermediate hydrocarbons in the crude oil or bitumen |
US4022280A (en) * | 1976-05-17 | 1977-05-10 | Stoddard Xerxes T | Thermal recovery of hydrocarbons by washing an underground sand |
GB1544245A (en) | 1976-05-21 | 1979-04-19 | British Gas Corp | Production of substitute natural gas |
US4049053A (en) | 1976-06-10 | 1977-09-20 | Fisher Sidney T | Recovery of hydrocarbons from partially exhausted oil wells by mechanical wave heating |
US4193451A (en) * | 1976-06-17 | 1980-03-18 | The Badger Company, Inc. | Method for production of organic products from kerogen |
US4487257A (en) | 1976-06-17 | 1984-12-11 | Raytheon Company | Apparatus and method for production of organic products from kerogen |
US4067390A (en) | 1976-07-06 | 1978-01-10 | Technology Application Services Corporation | Apparatus and method for the recovery of fuel products from subterranean deposits of carbonaceous matter using a plasma arc |
US4057293A (en) | 1976-07-12 | 1977-11-08 | Garrett Donald E | Process for in situ conversion of coal or the like into oil and gas |
US4043393A (en) | 1976-07-29 | 1977-08-23 | Fisher Sidney T | Extraction from underground coal deposits |
US4091869A (en) | 1976-09-07 | 1978-05-30 | Exxon Production Research Company | In situ process for recovery of carbonaceous materials from subterranean deposits |
US4065183A (en) | 1976-11-15 | 1977-12-27 | Trw Inc. | Recovery system for oil shale deposits |
US4059308A (en) * | 1976-11-15 | 1977-11-22 | Trw Inc. | Pressure swing recovery system for oil shale deposits |
US4083604A (en) | 1976-11-15 | 1978-04-11 | Trw Inc. | Thermomechanical fracture for recovery system in oil shale deposits |
US4077471A (en) | 1976-12-01 | 1978-03-07 | Texaco Inc. | Surfactant oil recovery process usable in high temperature, high salinity formations |
US4064943A (en) | 1976-12-06 | 1977-12-27 | Shell Oil Co | Plugging permeable earth formation with wax |
US4084637A (en) | 1976-12-16 | 1978-04-18 | Petro Canada Exploration Inc. | Method of producing viscous materials from subterranean formations |
US4089374A (en) | 1976-12-16 | 1978-05-16 | In Situ Technology, Inc. | Producing methane from coal in situ |
US4093026A (en) | 1977-01-17 | 1978-06-06 | Occidental Oil Shale, Inc. | Removal of sulfur dioxide from process gas using treated oil shale and water |
US4102418A (en) | 1977-01-24 | 1978-07-25 | Bakerdrill Inc. | Borehole drilling apparatus |
US4277416A (en) | 1977-02-17 | 1981-07-07 | Aminoil, Usa, Inc. | Process for producing methanol |
US4085803A (en) | 1977-03-14 | 1978-04-25 | Exxon Production Research Company | Method for oil recovery using a horizontal well with indirect heating |
US4151877A (en) | 1977-05-13 | 1979-05-01 | Occidental Oil Shale, Inc. | Determining the locus of a processing zone in a retort through channels |
US4099567A (en) | 1977-05-27 | 1978-07-11 | In Situ Technology, Inc. | Generating medium BTU gas from coal in situ |
US4169506A (en) | 1977-07-15 | 1979-10-02 | Standard Oil Company (Indiana) | In situ retorting of oil shale and energy recovery |
US4144935A (en) | 1977-08-29 | 1979-03-20 | Iit Research Institute | Apparatus and method for in situ heat processing of hydrocarbonaceous formations |
US4140180A (en) | 1977-08-29 | 1979-02-20 | Iit Research Institute | Method for in situ heat processing of hydrocarbonaceous formations |
NL181941C (en) | 1977-09-16 | 1987-12-01 | Ir Arnold Willem Josephus Grup | METHOD FOR UNDERGROUND GASULATION OF COAL OR BROWN. |
US4125159A (en) | 1977-10-17 | 1978-11-14 | Vann Roy Randell | Method and apparatus for isolating and treating subsurface stratas |
SU915451A1 (en) | 1977-10-21 | 1988-08-23 | Vnii Ispolzovania | Method of underground gasification of fuel |
US4119349A (en) | 1977-10-25 | 1978-10-10 | Gulf Oil Corporation | Method and apparatus for recovery of fluids produced in in-situ retorting of oil shale |
US4114688A (en) | 1977-12-05 | 1978-09-19 | In Situ Technology Inc. | Minimizing environmental effects in production and use of coal |
US4158467A (en) | 1977-12-30 | 1979-06-19 | Gulf Oil Corporation | Process for recovering shale oil |
US4196914A (en) | 1978-01-13 | 1980-04-08 | Dresser Industries, Inc. | Chuck for an earth boring machine |
US4148359A (en) | 1978-01-30 | 1979-04-10 | Shell Oil Company | Pressure-balanced oil recovery process for water productive oil shale |
DE2812490A1 (en) | 1978-03-22 | 1979-09-27 | Texaco Ag | PROCEDURE FOR DETERMINING THE SPATIAL EXTENSION OF SUBSEQUENT REACTIONS |
US4162707A (en) | 1978-04-20 | 1979-07-31 | Mobil Oil Corporation | Method of treating formation to remove ammonium ions |
US4197911A (en) | 1978-05-09 | 1980-04-15 | Ramcor, Inc. | Process for in situ coal gasification |
US4228853A (en) | 1978-06-21 | 1980-10-21 | Harvey A Herbert | Petroleum production method |
US4186801A (en) | 1978-12-18 | 1980-02-05 | Gulf Research And Development Company | In situ combustion process for the recovery of liquid carbonaceous fuels from subterranean formations |
US4185692A (en) * | 1978-07-14 | 1980-01-29 | In Situ Technology, Inc. | Underground linkage of wells for production of coal in situ |
US4184548A (en) | 1978-07-17 | 1980-01-22 | Standard Oil Company (Indiana) | Method for determining the position and inclination of a flame front during in situ combustion of an oil shale retort |
US4257650A (en) | 1978-09-07 | 1981-03-24 | Barber Heavy Oil Process, Inc. | Method for recovering subsurface earth substances |
US4183405A (en) | 1978-10-02 | 1980-01-15 | Magnie Robert L | Enhanced recoveries of petroleum and hydrogen from underground reservoirs |
US4446917A (en) | 1978-10-04 | 1984-05-08 | Todd John C | Method and apparatus for producing viscous or waxy crude oils |
US4457365A (en) | 1978-12-07 | 1984-07-03 | Raytheon Company | In situ radio frequency selective heating system |
US4299086A (en) | 1978-12-07 | 1981-11-10 | Gulf Research & Development Company | Utilization of energy obtained by substoichiometric combustion of low heating value gases |
US4265307A (en) | 1978-12-20 | 1981-05-05 | Standard Oil Company | Shale oil recovery |
US4194562A (en) | 1978-12-21 | 1980-03-25 | Texaco Inc. | Method for preconditioning a subterranean oil-bearing formation prior to in-situ combustion |
US4258955A (en) | 1978-12-26 | 1981-03-31 | Mobil Oil Corporation | Process for in-situ leaching of uranium |
US4274487A (en) | 1979-01-11 | 1981-06-23 | Standard Oil Company (Indiana) | Indirect thermal stimulation of production wells |
US4260192A (en) | 1979-02-21 | 1981-04-07 | Occidental Research Corporation | Recovery of magnesia from oil shale |
US4324292A (en) | 1979-02-21 | 1982-04-13 | University Of Utah | Process for recovering products from oil shale |
US4243511A (en) | 1979-03-26 | 1981-01-06 | Marathon Oil Company | Process for suppressing carbonate decomposition in vapor phase water retorting |
US4248306A (en) | 1979-04-02 | 1981-02-03 | Huisen Allan T Van | Geothermal petroleum refining |
US4282587A (en) | 1979-05-21 | 1981-08-04 | Daniel Silverman | Method for monitoring the recovery of minerals from shallow geological formations |
US4216079A (en) | 1979-07-09 | 1980-08-05 | Cities Service Company | Emulsion breaking with surfactant recovery |
US4234230A (en) | 1979-07-11 | 1980-11-18 | The Superior Oil Company | In situ processing of mined oil shale |
US4228854A (en) | 1979-08-13 | 1980-10-21 | Alberta Research Council | Enhanced oil recovery using electrical means |
US4701587A (en) | 1979-08-31 | 1987-10-20 | Metcal, Inc. | Shielded heating element having intrinsic temperature control |
US4256945A (en) | 1979-08-31 | 1981-03-17 | Iris Associates | Alternating current electrically resistive heating element having intrinsic temperature control |
US4327805A (en) | 1979-09-18 | 1982-05-04 | Carmel Energy, Inc. | Method for producing viscous hydrocarbons |
US4549396A (en) | 1979-10-01 | 1985-10-29 | Mobil Oil Corporation | Conversion of coal to electricity |
US4370518A (en) | 1979-12-03 | 1983-01-25 | Hughes Tool Company | Splice for lead-coated and insulated conductors |
US4250230A (en) | 1979-12-10 | 1981-02-10 | In Situ Technology, Inc. | Generating electricity from coal in situ |
US4250962A (en) | 1979-12-14 | 1981-02-17 | Gulf Research & Development Company | In situ combustion process for the recovery of liquid carbonaceous fuels from subterranean formations |
US4359687A (en) | 1980-01-25 | 1982-11-16 | Shell Oil Company | Method and apparatus for determining shaliness and oil saturations in earth formations using induced polarization in the frequency domain |
US4398151A (en) | 1980-01-25 | 1983-08-09 | Shell Oil Company | Method for correcting an electrical log for the presence of shale in a formation |
US4285547A (en) | 1980-02-01 | 1981-08-25 | Multi Mineral Corporation | Integrated in situ shale oil and mineral recovery process |
USRE30738E (en) | 1980-02-06 | 1981-09-08 | Iit Research Institute | Apparatus and method for in situ heat processing of hydrocarbonaceous formations |
US4303126A (en) | 1980-02-27 | 1981-12-01 | Chevron Research Company | Arrangement of wells for producing subsurface viscous petroleum |
US4477376A (en) | 1980-03-10 | 1984-10-16 | Gold Marvin H | Castable mixture for insulating spliced high voltage cable |
US4445574A (en) | 1980-03-24 | 1984-05-01 | Geo Vann, Inc. | Continuous borehole formed horizontally through a hydrocarbon producing formation |
US4417782A (en) | 1980-03-31 | 1983-11-29 | Raychem Corporation | Fiber optic temperature sensing |
CA1168283A (en) | 1980-04-14 | 1984-05-29 | Hiroshi Teratani | Electrode device for electrically heating underground deposits of hydrocarbons |
JPS56146588A (en) * | 1980-04-14 | 1981-11-14 | Mitsubishi Electric Corp | Electric heating electrode device for hydrocarbon based underground resources |
US4273188A (en) | 1980-04-30 | 1981-06-16 | Gulf Research & Development Company | In situ combustion process for the recovery of liquid carbonaceous fuels from subterranean formations |
US4306621A (en) | 1980-05-23 | 1981-12-22 | Boyd R Michael | Method for in situ coal gasification operations |
US4317485A (en) * | 1980-05-23 | 1982-03-02 | Baker International Corporation | Pump catcher apparatus |
US4409090A (en) | 1980-06-02 | 1983-10-11 | University Of Utah | Process for recovering products from tar sand |
CA1165361A (en) | 1980-06-03 | 1984-04-10 | Toshiyuki Kobayashi | Electrode unit for electrically heating underground hydrocarbon deposits |
JPS6015109B2 (en) * | 1980-06-03 | 1985-04-17 | 三菱電機株式会社 | Electrode device for electrical heating of hydrocarbon underground resources |
US4381641A (en) | 1980-06-23 | 1983-05-03 | Gulf Research & Development Company | Substoichiometric combustion of low heating value gases |
US4401099A (en) | 1980-07-11 | 1983-08-30 | W.B. Combustion, Inc. | Single-ended recuperative radiant tube assembly and method |
US4299285A (en) | 1980-07-21 | 1981-11-10 | Gulf Research & Development Company | Underground gasification of bituminous coal |
DE3030110C2 (en) | 1980-08-08 | 1983-04-21 | Vsesojuznyj neftegazovyj naučno-issledovatel'skij institut, Moskva | Process for the extraction of petroleum by mining and by supplying heat |
US4396062A (en) | 1980-10-06 | 1983-08-02 | University Of Utah Research Foundation | Apparatus and method for time-domain tracking of high-speed chemical reactions |
US4353418A (en) | 1980-10-20 | 1982-10-12 | Standard Oil Company (Indiana) | In situ retorting of oil shale |
US4384613A (en) | 1980-10-24 | 1983-05-24 | Terra Tek, Inc. | Method of in-situ retorting of carbonaceous material for recovery of organic liquids and gases |
US4366864A (en) | 1980-11-24 | 1983-01-04 | Exxon Research And Engineering Co. | Method for recovery of hydrocarbons from oil-bearing limestone or dolomite |
US4401163A (en) | 1980-12-29 | 1983-08-30 | The Standard Oil Company | Modified in situ retorting of oil shale |
JPS57116891A (en) * | 1980-12-30 | 1982-07-21 | Kobe Steel Ltd | Method of and apparatus for generating steam on shaft bottom |
US4385661A (en) | 1981-01-07 | 1983-05-31 | The United States Of America As Represented By The United States Department Of Energy | Downhole steam generator with improved preheating, combustion and protection features |
US4448251A (en) | 1981-01-08 | 1984-05-15 | Uop Inc. | In situ conversion of hydrocarbonaceous oil |
JPS57116891U (en) | 1981-01-12 | 1982-07-20 | ||
US4423311A (en) | 1981-01-19 | 1983-12-27 | Varney Sr Paul | Electric heating apparatus for de-icing pipes |
US4333764A (en) | 1981-01-21 | 1982-06-08 | Shell Oil Company | Nitrogen-gas-stabilized cement and a process for making and using it |
US4366668A (en) | 1981-02-25 | 1983-01-04 | Gulf Research & Development Company | Substoichiometric combustion of low heating value gases |
US4382469A (en) | 1981-03-10 | 1983-05-10 | Electro-Petroleum, Inc. | Method of in situ gasification |
US4363361A (en) | 1981-03-19 | 1982-12-14 | Gulf Research & Development Company | Substoichiometric combustion of low heating value gases |
US4390067A (en) | 1981-04-06 | 1983-06-28 | Exxon Production Research Co. | Method of treating reservoirs containing very viscous crude oil or bitumen |
US4399866A (en) | 1981-04-10 | 1983-08-23 | Atlantic Richfield Company | Method for controlling the flow of subterranean water into a selected zone in a permeable subterranean carbonaceous deposit |
US4444255A (en) | 1981-04-20 | 1984-04-24 | Lloyd Geoffrey | Apparatus and process for the recovery of oil |
US4380930A (en) | 1981-05-01 | 1983-04-26 | Mobil Oil Corporation | System for transmitting ultrasonic energy through core samples |
US4378048A (en) | 1981-05-08 | 1983-03-29 | Gulf Research & Development Company | Substoichiometric combustion of low heating value gases using different platinum catalysts |
US4429745A (en) | 1981-05-08 | 1984-02-07 | Mobil Oil Corporation | Oil recovery method |
US4384614A (en) | 1981-05-11 | 1983-05-24 | Justheim Pertroleum Company | Method of retorting oil shale by velocity flow of super-heated air |
US4403110A (en) | 1981-05-15 | 1983-09-06 | Walter Kidde And Company, Inc. | Electrical cable splice |
US4437519A (en) | 1981-06-03 | 1984-03-20 | Occidental Oil Shale, Inc. | Reduction of shale oil pour point |
US4368452A (en) | 1981-06-22 | 1983-01-11 | Kerr Jr Robert L | Thermal protection of aluminum conductor junctions |
US4428700A (en) | 1981-08-03 | 1984-01-31 | E. R. Johnson Associates, Inc. | Method for disposing of waste materials |
US4456065A (en) | 1981-08-20 | 1984-06-26 | Elektra Energie A.G. | Heavy oil recovering |
US4344483A (en) | 1981-09-08 | 1982-08-17 | Fisher Charles B | Multiple-site underground magnetic heating of hydrocarbons |
US4452491A (en) | 1981-09-25 | 1984-06-05 | Intercontinental Econergy Associates, Inc. | Recovery of hydrocarbons from deep underground deposits of tar sands |
US4425967A (en) | 1981-10-07 | 1984-01-17 | Standard Oil Company (Indiana) | Ignition procedure and process for in situ retorting of oil shale |
US4401162A (en) | 1981-10-13 | 1983-08-30 | Synfuel (An Indiana Limited Partnership) | In situ oil shale process |
US4605680A (en) | 1981-10-13 | 1986-08-12 | Chevron Research Company | Conversion of synthesis gas to diesel fuel and gasoline |
US4410042A (en) | 1981-11-02 | 1983-10-18 | Mobil Oil Corporation | In-situ combustion method for recovery of heavy oil utilizing oxygen and carbon dioxide as initial oxidant |
US4549073A (en) | 1981-11-06 | 1985-10-22 | Oximetrix, Inc. | Current controller for resistive heating element |
US4444258A (en) | 1981-11-10 | 1984-04-24 | Nicholas Kalmar | In situ recovery of oil from oil shale |
US4418752A (en) | 1982-01-07 | 1983-12-06 | Conoco Inc. | Thermal oil recovery with solvent recirculation |
FR2519688A1 (en) | 1982-01-08 | 1983-07-18 | Elf Aquitaine | SEALING SYSTEM FOR DRILLING WELLS IN WHICH CIRCULATES A HOT FLUID |
US4397732A (en) | 1982-02-11 | 1983-08-09 | International Coal Refining Company | Process for coal liquefaction employing selective coal feed |
GB2117030B (en) | 1982-03-17 | 1985-09-11 | Cameron Iron Works Inc | Method and apparatus for remote installations of dual tubing strings in a subsea well |
US4530401A (en) | 1982-04-05 | 1985-07-23 | Mobil Oil Corporation | Method for maximum in-situ visbreaking of heavy oil |
CA1196594A (en) | 1982-04-08 | 1985-11-12 | Guy Savard | Recovery of oil from tar sands |
US4537252A (en) | 1982-04-23 | 1985-08-27 | Standard Oil Company (Indiana) | Method of underground conversion of coal |
US4491179A (en) | 1982-04-26 | 1985-01-01 | Pirson Sylvain J | Method for oil recovery by in situ exfoliation drive |
US4455215A (en) | 1982-04-29 | 1984-06-19 | Jarrott David M | Process for the geoconversion of coal into oil |
US4412585A (en) | 1982-05-03 | 1983-11-01 | Cities Service Company | Electrothermal process for recovering hydrocarbons |
US4415034A (en) | 1982-05-03 | 1983-11-15 | Cities Service Company | Electrode well completion |
US4524826A (en) | 1982-06-14 | 1985-06-25 | Texaco Inc. | Method of heating an oil shale formation |
US4457374A (en) | 1982-06-29 | 1984-07-03 | Standard Oil Company | Transient response process for detecting in situ retorting conditions |
US4442896A (en) | 1982-07-21 | 1984-04-17 | Reale Lucio V | Treatment of underground beds |
US4407973A (en) | 1982-07-28 | 1983-10-04 | The M. W. Kellogg Company | Methanol from coal and natural gas |
US4449594A (en) | 1982-07-30 | 1984-05-22 | Allied Corporation | Method for obtaining pressurized core samples from underpressurized reservoirs |
US4479541A (en) | 1982-08-23 | 1984-10-30 | Wang Fun Den | Method and apparatus for recovery of oil, gas and mineral deposits by panel opening |
US4460044A (en) | 1982-08-31 | 1984-07-17 | Chevron Research Company | Advancing heated annulus steam drive |
US4544478A (en) | 1982-09-03 | 1985-10-01 | Chevron Research Company | Process for pyrolyzing hydrocarbonaceous solids to recover volatile hydrocarbons |
US4463988A (en) | 1982-09-07 | 1984-08-07 | Cities Service Co. | Horizontal heated plane process |
US4458767A (en) | 1982-09-28 | 1984-07-10 | Mobil Oil Corporation | Method for directionally drilling a first well to intersect a second well |
US4485868A (en) | 1982-09-29 | 1984-12-04 | Iit Research Institute | Method for recovery of viscous hydrocarbons by electromagnetic heating in situ |
US4927857A (en) | 1982-09-30 | 1990-05-22 | Engelhard Corporation | Method of methanol production |
US4695713A (en) | 1982-09-30 | 1987-09-22 | Metcal, Inc. | Autoregulating, electrically shielded heater |
CA1214815A (en) | 1982-09-30 | 1986-12-02 | John F. Krumme | Autoregulating electrically shielded heater |
US4498531A (en) | 1982-10-01 | 1985-02-12 | Rockwell International Corporation | Emission controller for indirect fired downhole steam generators |
US4485869A (en) | 1982-10-22 | 1984-12-04 | Iit Research Institute | Recovery of liquid hydrocarbons from oil shale by electromagnetic heating in situ |
DE3365337D1 (en) | 1982-11-22 | 1986-09-18 | Shell Int Research | Process for the preparation of a fischer-tropsch catalyst, a catalyst so prepared and use of this catalyst in the preparation of hydrocarbons |
US4498535A (en) | 1982-11-30 | 1985-02-12 | Iit Research Institute | Apparatus and method for in situ controlled heat processing of hydrocarbonaceous formations with a controlled parameter line |
US4474238A (en) | 1982-11-30 | 1984-10-02 | Phillips Petroleum Company | Method and apparatus for treatment of subsurface formations |
US4752673A (en) | 1982-12-01 | 1988-06-21 | Metcal, Inc. | Autoregulating heater |
US4520229A (en) | 1983-01-03 | 1985-05-28 | Amerace Corporation | Splice connector housing and assembly of cables employing same |
US4501326A (en) | 1983-01-17 | 1985-02-26 | Gulf Canada Limited | In-situ recovery of viscous hydrocarbonaceous crude oil |
US4609041A (en) | 1983-02-10 | 1986-09-02 | Magda Richard M | Well hot oil system |
US4640352A (en) | 1983-03-21 | 1987-02-03 | Shell Oil Company | In-situ steam drive oil recovery process |
US4886118A (en) | 1983-03-21 | 1989-12-12 | Shell Oil Company | Conductively heating a subterranean oil shale to create permeability and subsequently produce oil |
US4458757A (en) | 1983-04-25 | 1984-07-10 | Exxon Research And Engineering Co. | In situ shale-oil recovery process |
US4545435A (en) | 1983-04-29 | 1985-10-08 | Iit Research Institute | Conduction heating of hydrocarbonaceous formations |
US4524827A (en) | 1983-04-29 | 1985-06-25 | Iit Research Institute | Single well stimulation for the recovery of liquid hydrocarbons from subsurface formations |
US4518548A (en) | 1983-05-02 | 1985-05-21 | Sulcon, Inc. | Method of overlaying sulphur concrete on horizontal and vertical surfaces |
US4470459A (en) | 1983-05-09 | 1984-09-11 | Halliburton Company | Apparatus and method for controlled temperature heating of volumes of hydrocarbonaceous materials in earth formations |
EP0130671A3 (en) | 1983-05-26 | 1986-12-17 | Metcal Inc. | Multiple temperature autoregulating heater |
US4794226A (en) | 1983-05-26 | 1988-12-27 | Metcal, Inc. | Self-regulating porous heater device |
US5073625A (en) | 1983-05-26 | 1991-12-17 | Metcal, Inc. | Self-regulating porous heating device |
DE3319732A1 (en) | 1983-05-31 | 1984-12-06 | Kraftwerk Union AG, 4330 Mülheim | MEDIUM-POWER PLANT WITH INTEGRATED COAL GASIFICATION SYSTEM FOR GENERATING ELECTRICITY AND METHANOL |
US4583046A (en) | 1983-06-20 | 1986-04-15 | Shell Oil Company | Apparatus for focused electrode induced polarization logging |
US4658215A (en) | 1983-06-20 | 1987-04-14 | Shell Oil Company | Method for induced polarization logging |
US4717814A (en) | 1983-06-27 | 1988-01-05 | Metcal, Inc. | Slotted autoregulating heater |
US4439307A (en) | 1983-07-01 | 1984-03-27 | Dravo Corporation | Heating process gas for indirect shale oil retorting through the combustion of residual carbon in oil depleted shale |
US5209987A (en) | 1983-07-08 | 1993-05-11 | Raychem Limited | Wire and cable |
US4985313A (en) | 1985-01-14 | 1991-01-15 | Raychem Limited | Wire and cable |
US4598392A (en) | 1983-07-26 | 1986-07-01 | Mobil Oil Corporation | Vibratory signal sweep seismic prospecting method and apparatus |
US4501445A (en) | 1983-08-01 | 1985-02-26 | Cities Service Company | Method of in-situ hydrogenation of carbonaceous material |
US4538682A (en) | 1983-09-08 | 1985-09-03 | Mcmanus James W | Method and apparatus for removing oil well paraffin |
US4573530A (en) | 1983-11-07 | 1986-03-04 | Mobil Oil Corporation | In-situ gasification of tar sands utilizing a combustible gas |
US4698149A (en) | 1983-11-07 | 1987-10-06 | Mobil Oil Corporation | Enhanced recovery of hydrocarbonaceous fluids oil shale |
US4489782A (en) | 1983-12-12 | 1984-12-25 | Atlantic Richfield Company | Viscous oil production using electrical current heating and lateral drain holes |
US4598772A (en) | 1983-12-28 | 1986-07-08 | Mobil Oil Corporation | Method for operating a production well in an oxygen driven in-situ combustion oil recovery process |
US4571491A (en) | 1983-12-29 | 1986-02-18 | Shell Oil Company | Method of imaging the atomic number of a sample |
US4613754A (en) | 1983-12-29 | 1986-09-23 | Shell Oil Company | Tomographic calibration apparatus |
US4583242A (en) | 1983-12-29 | 1986-04-15 | Shell Oil Company | Apparatus for positioning a sample in a computerized axial tomographic scanner |
US4542648A (en) | 1983-12-29 | 1985-09-24 | Shell Oil Company | Method of correlating a core sample with its original position in a borehole |
US4635197A (en) | 1983-12-29 | 1987-01-06 | Shell Oil Company | High resolution tomographic imaging method |
US4540882A (en) | 1983-12-29 | 1985-09-10 | Shell Oil Company | Method of determining drilling fluid invasion |
US4662439A (en) | 1984-01-20 | 1987-05-05 | Amoco Corporation | Method of underground conversion of coal |
US4623401A (en) | 1984-03-06 | 1986-11-18 | Metcal, Inc. | Heat treatment with an autoregulating heater |
US4644283A (en) | 1984-03-19 | 1987-02-17 | Shell Oil Company | In-situ method for determining pore size distribution, capillary pressure and permeability |
US4637464A (en) | 1984-03-22 | 1987-01-20 | Amoco Corporation | In situ retorting of oil shale with pulsed water purge |
US4552214A (en) | 1984-03-22 | 1985-11-12 | Standard Oil Company (Indiana) | Pulsed in situ retorting in an array of oil shale retorts |
US4570715A (en) | 1984-04-06 | 1986-02-18 | Shell Oil Company | Formation-tailored method and apparatus for uniformly heating long subterranean intervals at high temperature |
US4577690A (en) | 1984-04-18 | 1986-03-25 | Mobil Oil Corporation | Method of using seismic data to monitor firefloods |
US4592423A (en) | 1984-05-14 | 1986-06-03 | Texaco Inc. | Hydrocarbon stratum retorting means and method |
US4597441A (en) | 1984-05-25 | 1986-07-01 | World Energy Systems, Inc. | Recovery of oil by in situ hydrogenation |
US4620592A (en) | 1984-06-11 | 1986-11-04 | Atlantic Richfield Company | Progressive sequence for viscous oil recovery |
US4663711A (en) | 1984-06-22 | 1987-05-05 | Shell Oil Company | Method of analyzing fluid saturation using computerized axial tomography |
US4577503A (en) | 1984-09-04 | 1986-03-25 | International Business Machines Corporation | Method and device for detecting a specific acoustic spectral feature |
US4577691A (en) | 1984-09-10 | 1986-03-25 | Texaco Inc. | Method and apparatus for producing viscous hydrocarbons from a subterranean formation |
US4576231A (en) | 1984-09-13 | 1986-03-18 | Texaco Inc. | Method and apparatus for combating encroachment by in situ treated formations |
US4597444A (en) | 1984-09-21 | 1986-07-01 | Atlantic Richfield Company | Method for excavating a large diameter shaft into the earth and at least partially through an oil-bearing formation |
US4691771A (en) | 1984-09-25 | 1987-09-08 | Worldenergy Systems, Inc. | Recovery of oil by in-situ combustion followed by in-situ hydrogenation |
JPS6177795A (en) * | 1984-09-26 | 1986-04-21 | 株式会社東芝 | Control rod for nuclear reactor |
US4616705A (en) | 1984-10-05 | 1986-10-14 | Shell Oil Company | Mini-well temperature profiling process |
JPS61102990A (en) * | 1984-10-24 | 1986-05-21 | 近畿イシコ株式会社 | Lift apparatus of machine for doundation construction |
US4598770A (en) | 1984-10-25 | 1986-07-08 | Mobil Oil Corporation | Thermal recovery method for viscous oil |
US4572299A (en) | 1984-10-30 | 1986-02-25 | Shell Oil Company | Heater cable installation |
JPS61118692A (en) * | 1984-11-13 | 1986-06-05 | ウエスチングハウス エレクトリック コ−ポレ−ション | Method of operating generation system of pressurized water type reactor |
US4634187A (en) | 1984-11-21 | 1987-01-06 | Isl Ventures, Inc. | Method of in-situ leaching of ores |
US4669542A (en) | 1984-11-21 | 1987-06-02 | Mobil Oil Corporation | Simultaneous recovery of crude from multiple zones in a reservoir |
US4585066A (en) | 1984-11-30 | 1986-04-29 | Shell Oil Company | Well treating process for installing a cable bundle containing strands of changing diameter |
US4704514A (en) | 1985-01-11 | 1987-11-03 | Egmond Cor F Van | Heating rate variant elongated electrical resistance heater |
US4614392A (en) | 1985-01-15 | 1986-09-30 | Moore Boyd B | Well bore electric pump power cable connector for multiple individual, insulated conductors of a pump power cable |
US4645906A (en) | 1985-03-04 | 1987-02-24 | Thermon Manufacturing Company | Reduced resistance skin effect heat generating system |
US4643256A (en) | 1985-03-18 | 1987-02-17 | Shell Oil Company | Steam-foaming surfactant mixtures which are tolerant of divalent ions |
US4698583A (en) | 1985-03-26 | 1987-10-06 | Raychem Corporation | Method of monitoring a heater for faults |
US4785163A (en) | 1985-03-26 | 1988-11-15 | Raychem Corporation | Method for monitoring a heater |
US4670634A (en) | 1985-04-05 | 1987-06-02 | Iit Research Institute | In situ decontamination of spills and landfills by radio frequency heating |
NO861531L (en) | 1985-04-19 | 1986-10-20 | Raychem Gmbh | HOT BODY. |
US4601333A (en) * | 1985-04-29 | 1986-07-22 | Hughes Tool Company | Thermal slide joint |
JPS61282594A (en) | 1985-06-05 | 1986-12-12 | 日本海洋掘削株式会社 | Method of measuring strings |
US4671102A (en) | 1985-06-18 | 1987-06-09 | Shell Oil Company | Method and apparatus for determining distribution of fluids |
US4626665A (en) | 1985-06-24 | 1986-12-02 | Shell Oil Company | Metal oversheathed electrical resistance heater |
US4623444A (en) | 1985-06-27 | 1986-11-18 | Occidental Oil Shale, Inc. | Upgrading shale oil by a combination process |
US4605489A (en) | 1985-06-27 | 1986-08-12 | Occidental Oil Shale, Inc. | Upgrading shale oil by a combination process |
US4662438A (en) | 1985-07-19 | 1987-05-05 | Uentech Corporation | Method and apparatus for enhancing liquid hydrocarbon production from a single borehole in a slowly producing formation by non-uniform heating through optimized electrode arrays surrounding the borehole |
US4728892A (en) | 1985-08-13 | 1988-03-01 | Shell Oil Company | NMR imaging of materials |
US4719423A (en) | 1985-08-13 | 1988-01-12 | Shell Oil Company | NMR imaging of materials for transport properties |
NO853394L (en) * | 1985-08-29 | 1987-03-02 | You Yi Tu | DEVICE FOR AA BLOCKING A DRILL HOLE BY DRILLING AFTER OIL SOURCES E.L. |
US4778586A (en) | 1985-08-30 | 1988-10-18 | Resource Technology Associates | Viscosity reduction processing at elevated pressure |
US4662437A (en) | 1985-11-14 | 1987-05-05 | Atlantic Richfield Company | Electrically stimulated well production system with flexible tubing conductor |
CA1253555A (en) | 1985-11-21 | 1989-05-02 | Cornelis F.H. Van Egmond | Heating rate variant elongated electrical resistance heater |
US4662443A (en) | 1985-12-05 | 1987-05-05 | Amoco Corporation | Combination air-blown and oxygen-blown underground coal gasification process |
US4849611A (en) | 1985-12-16 | 1989-07-18 | Raychem Corporation | Self-regulating heater employing reactive components |
US4730162A (en) | 1985-12-31 | 1988-03-08 | Shell Oil Company | Time-domain induced polarization logging method and apparatus with gated amplification level |
US4706751A (en) | 1986-01-31 | 1987-11-17 | S-Cal Research Corp. | Heavy oil recovery process |
US4694907A (en) | 1986-02-21 | 1987-09-22 | Carbotek, Inc. | Thermally-enhanced oil recovery method and apparatus |
US4640353A (en) | 1986-03-21 | 1987-02-03 | Atlantic Richfield Company | Electrode well and method of completion |
US4734115A (en) | 1986-03-24 | 1988-03-29 | Air Products And Chemicals, Inc. | Low pressure process for C3+ liquids recovery from process product gas |
US4793421A (en) * | 1986-04-08 | 1988-12-27 | Becor Western Inc. | Programmed automatic drill control |
US4651825A (en) | 1986-05-09 | 1987-03-24 | Atlantic Richfield Company | Enhanced well production |
GB2190162A (en) * | 1986-05-09 | 1987-11-11 | Kawasaki Thermal Systems Inc | Thermally insulated telescopic pipe coupling |
US4814587A (en) | 1986-06-10 | 1989-03-21 | Metcal, Inc. | High power self-regulating heater |
US4682652A (en) | 1986-06-30 | 1987-07-28 | Texaco Inc. | Producing hydrocarbons through successively perforated intervals of a horizontal well between two vertical wells |
US4769602A (en) | 1986-07-02 | 1988-09-06 | Shell Oil Company | Determining multiphase saturations by NMR imaging of multiple nuclides |
US4893504A (en) | 1986-07-02 | 1990-01-16 | Shell Oil Company | Method for determining capillary pressure and relative permeability by imaging |
US4716960A (en) | 1986-07-14 | 1988-01-05 | Production Technologies International, Inc. | Method and system for introducing electric current into a well |
US4818370A (en) | 1986-07-23 | 1989-04-04 | Cities Service Oil And Gas Corporation | Process for converting heavy crudes, tars, and bitumens to lighter products in the presence of brine at supercritical conditions |
US4772634A (en) | 1986-07-31 | 1988-09-20 | Energy Research Corporation | Apparatus and method for methanol production using a fuel cell to regulate the gas composition entering the methanol synthesizer |
US4744245A (en) | 1986-08-12 | 1988-05-17 | Atlantic Richfield Company | Acoustic measurements in rock formations for determining fracture orientation |
US4696345A (en) | 1986-08-21 | 1987-09-29 | Chevron Research Company | Hasdrive with multiple offset producers |
US4769606A (en) | 1986-09-30 | 1988-09-06 | Shell Oil Company | Induced polarization method and apparatus for distinguishing dispersed and laminated clay in earth formations |
US5043668A (en) * | 1987-08-26 | 1991-08-27 | Paramagnetic Logging Inc. | Methods and apparatus for measurement of electronic properties of geological formations through borehole casing |
US5340467A (en) | 1986-11-24 | 1994-08-23 | Canadian Occidental Petroleum Ltd. | Process for recovery of hydrocarbons and rejection of sand |
US5316664A (en) | 1986-11-24 | 1994-05-31 | Canadian Occidental Petroleum, Ltd. | Process for recovery of hydrocarbons and rejection of sand |
US4983319A (en) | 1986-11-24 | 1991-01-08 | Canadian Occidental Petroleum Ltd. | Preparation of low-viscosity improved stable crude oil transport emulsions |
CA1288043C (en) | 1986-12-15 | 1991-08-27 | Peter Van Meurs | Conductively heating a subterranean oil shale to create permeabilityand subsequently produce oil |
US4766958A (en) | 1987-01-12 | 1988-08-30 | Mobil Oil Corporation | Method of recovering viscous oil from reservoirs with multiple horizontal zones |
US4756367A (en) | 1987-04-28 | 1988-07-12 | Amoco Corporation | Method for producing natural gas from a coal seam |
US4817711A (en) | 1987-05-27 | 1989-04-04 | Jeambey Calhoun G | System for recovery of petroleum from petroleum impregnated media |
US4818371A (en) | 1987-06-05 | 1989-04-04 | Resource Technology Associates | Viscosity reduction by direct oxidative heating |
US4787452A (en) | 1987-06-08 | 1988-11-29 | Mobil Oil Corporation | Disposal of produced formation fines during oil recovery |
US4821798A (en) | 1987-06-09 | 1989-04-18 | Ors Development Corporation | Heating system for rathole oil well |
US4793409A (en) | 1987-06-18 | 1988-12-27 | Ors Development Corporation | Method and apparatus for forming an insulated oil well casing |
US4884455A (en) | 1987-06-25 | 1989-12-05 | Shell Oil Company | Method for analysis of failure of material employing imaging |
US4856341A (en) | 1987-06-25 | 1989-08-15 | Shell Oil Company | Apparatus for analysis of failure of material |
US4827761A (en) | 1987-06-25 | 1989-05-09 | Shell Oil Company | Sample holder |
US4776638A (en) | 1987-07-13 | 1988-10-11 | University Of Kentucky Research Foundation | Method and apparatus for conversion of coal in situ |
US4848924A (en) | 1987-08-19 | 1989-07-18 | The Babcock & Wilcox Company | Acoustic pyrometer |
US4828031A (en) | 1987-10-13 | 1989-05-09 | Chevron Research Company | In situ chemical stimulation of diatomite formations |
US4762425A (en) | 1987-10-15 | 1988-08-09 | Parthasarathy Shakkottai | System for temperature profile measurement in large furnances and kilns and method therefor |
US4815791A (en) | 1987-10-22 | 1989-03-28 | The United States Of America As Represented By The Secretary Of The Interior | Bedded mineral extraction process |
US5306640A (en) | 1987-10-28 | 1994-04-26 | Shell Oil Company | Method for determining preselected properties of a crude oil |
US4987368A (en) | 1987-11-05 | 1991-01-22 | Shell Oil Company | Nuclear magnetism logging tool using high-temperature superconducting squid detectors |
US4842448A (en) | 1987-11-12 | 1989-06-27 | Drexel University | Method of removing contaminants from contaminated soil in situ |
US4808925A (en) | 1987-11-19 | 1989-02-28 | Halliburton Company | Three magnet casing collar locator |
US4823890A (en) | 1988-02-23 | 1989-04-25 | Longyear Company | Reverse circulation bit apparatus |
US4883582A (en) | 1988-03-07 | 1989-11-28 | Mccants Malcolm T | Vis-breaking heavy crude oils for pumpability |
US4866983A (en) | 1988-04-14 | 1989-09-19 | Shell Oil Company | Analytical methods and apparatus for measuring the oil content of sponge core |
US4885080A (en) | 1988-05-25 | 1989-12-05 | Phillips Petroleum Company | Process for demetallizing and desulfurizing heavy crude oil |
US5046560A (en) | 1988-06-10 | 1991-09-10 | Exxon Production Research Company | Oil recovery process using arkyl aryl polyalkoxyol sulfonate surfactants as mobility control agents |
US4884635A (en) * | 1988-08-24 | 1989-12-05 | Texaco Canada Resources | Enhanced oil recovery with a mixture of water and aromatic hydrocarbons |
US4842070A (en) | 1988-09-15 | 1989-06-27 | Amoco Corporation | Procedure for improving reservoir sweep efficiency using paraffinic or asphaltic hydrocarbons |
US4928765A (en) | 1988-09-27 | 1990-05-29 | Ramex Syn-Fuels International | Method and apparatus for shale gas recovery |
GB8824111D0 (en) * | 1988-10-14 | 1988-11-23 | Nashcliffe Ltd | Shaft excavation system |
US4856587A (en) | 1988-10-27 | 1989-08-15 | Nielson Jay P | Recovery of oil from oil-bearing formation by continually flowing pressurized heated gas through channel alongside matrix |
US5064006A (en) | 1988-10-28 | 1991-11-12 | Magrange, Inc | Downhole combination tool |
US4848460A (en) | 1988-11-04 | 1989-07-18 | Western Research Institute | Contained recovery of oily waste |
US5065501A (en) | 1988-11-29 | 1991-11-19 | Amp Incorporated | Generating electromagnetic fields in a self regulating temperature heater by positioning of a current return bus |
US4859200A (en) | 1988-12-05 | 1989-08-22 | Baker Hughes Incorporated | Downhole electrical connector for submersible pump |
US4974425A (en) | 1988-12-08 | 1990-12-04 | Concept Rkk, Limited | Closed cryogenic barrier for containment of hazardous material migration in the earth |
US4860544A (en) | 1988-12-08 | 1989-08-29 | Concept R.K.K. Limited | Closed cryogenic barrier for containment of hazardous material migration in the earth |
US4933640A (en) | 1988-12-30 | 1990-06-12 | Vector Magnetics | Apparatus for locating an elongated conductive body by electromagnetic measurement while drilling |
US4940095A (en) | 1989-01-27 | 1990-07-10 | Dowell Schlumberger Incorporated | Deployment/retrieval method and apparatus for well tools used with coiled tubing |
US5103920A (en) | 1989-03-01 | 1992-04-14 | Patton Consulting Inc. | Surveying system and method for locating target subterranean bodies |
ATE138491T1 (en) * | 1989-03-13 | 1996-06-15 | Univ Utah Res Found | METHOD AND DEVICE FOR GENERATING ENERGY |
CA2015318C (en) | 1990-04-24 | 1994-02-08 | Jack E. Bridges | Power sources for downhole electrical heating |
US4895206A (en) | 1989-03-16 | 1990-01-23 | Price Ernest H | Pulsed in situ exothermic shock wave and retorting process for hydrocarbon recovery and detoxification of selected wastes |
US4913065A (en) | 1989-03-27 | 1990-04-03 | Indugas, Inc. | In situ thermal waste disposal system |
US4947672A (en) | 1989-04-03 | 1990-08-14 | Burndy Corporation | Hydraulic compression tool having an improved relief and release valve |
NL8901138A (en) | 1989-05-03 | 1990-12-03 | Nkf Kabel Bv | PLUG-IN CONNECTION FOR HIGH-VOLTAGE PLASTIC CABLES. |
US4959193A (en) * | 1989-05-11 | 1990-09-25 | General Electric Company | Indirect passive cooling system for liquid metal cooled nuclear reactors |
DE3918265A1 (en) | 1989-06-05 | 1991-01-03 | Henkel Kgaa | PROCESS FOR THE PREPARATION OF ETHANE SULPHONATE BASE TENSID MIXTURES AND THEIR USE |
US5059303A (en) | 1989-06-16 | 1991-10-22 | Amoco Corporation | Oil stabilization |
US5041210A (en) | 1989-06-30 | 1991-08-20 | Marathon Oil Company | Oil shale retorting with steam and produced gas |
DE3922612C2 (en) | 1989-07-10 | 1998-07-02 | Krupp Koppers Gmbh | Process for the production of methanol synthesis gas |
US4982786A (en) | 1989-07-14 | 1991-01-08 | Mobil Oil Corporation | Use of CO2 /steam to enhance floods in horizontal wellbores |
US5050386A (en) | 1989-08-16 | 1991-09-24 | Rkk, Limited | Method and apparatus for containment of hazardous material migration in the earth |
US5097903A (en) | 1989-09-22 | 1992-03-24 | Jack C. Sloan | Method for recovering intractable petroleum from subterranean formations |
US5305239A (en) | 1989-10-04 | 1994-04-19 | The Texas A&M University System | Ultrasonic non-destructive evaluation of thin specimens |
US4926941A (en) | 1989-10-10 | 1990-05-22 | Shell Oil Company | Method of producing tar sand deposits containing conductive layers |
US5656239A (en) | 1989-10-27 | 1997-08-12 | Shell Oil Company | Method for recovering contaminants from soil utilizing electrical heating |
US4984594A (en) | 1989-10-27 | 1991-01-15 | Shell Oil Company | Vacuum method for removing soil contamination utilizing surface electrical heating |
US4986375A (en) | 1989-12-04 | 1991-01-22 | Maher Thomas P | Device for facilitating drill bit retrieval |
US5336851A (en) * | 1989-12-27 | 1994-08-09 | Sumitomo Electric Industries, Ltd. | Insulated electrical conductor wire having a high operating temperature |
US5020596A (en) | 1990-01-24 | 1991-06-04 | Indugas, Inc. | Enhanced oil recovery system with a radiant tube heater |
US5082055A (en) | 1990-01-24 | 1992-01-21 | Indugas, Inc. | Gas fired radiant tube heater |
US5011329A (en) | 1990-02-05 | 1991-04-30 | Hrubetz Exploration Company | In situ soil decontamination method and apparatus |
CA2009782A1 (en) * | 1990-02-12 | 1991-08-12 | Anoosh I. Kiamanesh | In-situ tuned microwave oil extraction process |
TW215446B (en) | 1990-02-23 | 1993-11-01 | Furukawa Electric Co Ltd | |
US5152341A (en) | 1990-03-09 | 1992-10-06 | Raymond S. Kasevich | Electromagnetic method and apparatus for the decontamination of hazardous material-containing volumes |
US5027896A (en) | 1990-03-21 | 1991-07-02 | Anderson Leonard M | Method for in-situ recovery of energy raw material by the introduction of a water/oxygen slurry |
GB9007147D0 (en) | 1990-03-30 | 1990-05-30 | Framo Dev Ltd | Thermal mineral extraction system |
CA2015460C (en) | 1990-04-26 | 1993-12-14 | Kenneth Edwin Kisman | Process for confining steam injected into a heavy oil reservoir |
US5126037A (en) | 1990-05-04 | 1992-06-30 | Union Oil Company Of California | Geopreater heating method and apparatus |
US5032042A (en) | 1990-06-26 | 1991-07-16 | New Jersey Institute Of Technology | Method and apparatus for eliminating non-naturally occurring subsurface, liquid toxic contaminants from soil |
US5201219A (en) | 1990-06-29 | 1993-04-13 | Amoco Corporation | Method and apparatus for measuring free hydrocarbons and hydrocarbons potential from whole core |
US5054551A (en) | 1990-08-03 | 1991-10-08 | Chevron Research And Technology Company | In-situ heated annulus refining process |
US5109928A (en) | 1990-08-17 | 1992-05-05 | Mccants Malcolm T | Method for production of hydrocarbon diluent from heavy crude oil |
US5060726A (en) | 1990-08-23 | 1991-10-29 | Shell Oil Company | Method and apparatus for producing tar sand deposits containing conductive layers having little or no vertical communication |
US5046559A (en) | 1990-08-23 | 1991-09-10 | Shell Oil Company | Method and apparatus for producing hydrocarbon bearing deposits in formations having shale layers |
US5042579A (en) | 1990-08-23 | 1991-08-27 | Shell Oil Company | Method and apparatus for producing tar sand deposits containing conductive layers |
BR9004240A (en) | 1990-08-28 | 1992-03-24 | Petroleo Brasileiro Sa | ELECTRIC PIPE HEATING PROCESS |
US5085276A (en) * | 1990-08-29 | 1992-02-04 | Chevron Research And Technology Company | Production of oil from low permeability formations by sequential steam fracturing |
US5245161A (en) | 1990-08-31 | 1993-09-14 | Tokyo Kogyo Boyeki Shokai, Ltd. | Electric heater |
US5066852A (en) | 1990-09-17 | 1991-11-19 | Teledyne Ind. Inc. | Thermoplastic end seal for electric heating elements |
US5207273A (en) | 1990-09-17 | 1993-05-04 | Production Technologies International Inc. | Method and apparatus for pumping wells |
US5182427A (en) | 1990-09-20 | 1993-01-26 | Metcal, Inc. | Self-regulating heater utilizing ferrite-type body |
JPH04272680A (en) | 1990-09-20 | 1992-09-29 | Thermon Mfg Co | Switch-controlled-zone type heating cable and assembling method thereof |
US5517593A (en) | 1990-10-01 | 1996-05-14 | John Nenniger | Control system for well stimulation apparatus with response time temperature rise used in determining heater control temperature setpoint |
US5400430A (en) | 1990-10-01 | 1995-03-21 | Nenniger; John E. | Method for injection well stimulation |
JPH0827387B2 (en) * | 1990-10-05 | 1996-03-21 | 動力炉・核燃料開発事業団 | Heat-resistant fast neutron shielding material |
US5408047A (en) | 1990-10-25 | 1995-04-18 | Minnesota Mining And Manufacturing Company | Transition joint for oil-filled cables |
US5070533A (en) | 1990-11-07 | 1991-12-03 | Uentech Corporation | Robust electrical heating systems for mineral wells |
FR2669077B2 (en) | 1990-11-09 | 1995-02-03 | Institut Francais Petrole | METHOD AND DEVICE FOR PERFORMING INTERVENTIONS IN WELLS OR HIGH TEMPERATURES. |
US5065818A (en) | 1991-01-07 | 1991-11-19 | Shell Oil Company | Subterranean heaters |
US5060287A (en) | 1990-12-04 | 1991-10-22 | Shell Oil Company | Heater utilizing copper-nickel alloy core |
US5217076A (en) | 1990-12-04 | 1993-06-08 | Masek John A | Method and apparatus for improved recovery of oil from porous, subsurface deposits (targevcir oricess) |
US5190405A (en) | 1990-12-14 | 1993-03-02 | Shell Oil Company | Vacuum method for removing soil contaminants utilizing thermal conduction heating |
SU1836876A3 (en) | 1990-12-29 | 1994-12-30 | Смешанное научно-техническое товарищество по разработке техники и технологии для подземной электроэнергетики | Process of development of coal seams and complex of equipment for its implementation |
US5289882A (en) | 1991-02-06 | 1994-03-01 | Boyd B. Moore | Sealed electrical conductor method and arrangement for use with a well bore in hazardous areas |
US5667008A (en) | 1991-02-06 | 1997-09-16 | Quick Connectors, Inc. | Seal electrical conductor arrangement for use with a well bore in hazardous areas |
US5103909A (en) | 1991-02-19 | 1992-04-14 | Shell Oil Company | Profile control in enhanced oil recovery |
US5261490A (en) | 1991-03-18 | 1993-11-16 | Nkk Corporation | Method for dumping and disposing of carbon dioxide gas and apparatus therefor |
US5204270A (en) | 1991-04-29 | 1993-04-20 | Lacount Robert B | Multiple sample characterization of coals and other substances by controlled-atmosphere programmed temperature oxidation |
US5246273A (en) | 1991-05-13 | 1993-09-21 | Rosar Edward C | Method and apparatus for solution mining |
CA2043092A1 (en) | 1991-05-23 | 1992-11-24 | Bruce C. W. Mcgee | Electrical heating of oil reservoir |
US5117912A (en) | 1991-05-24 | 1992-06-02 | Marathon Oil Company | Method of positioning tubing within a horizontal well |
ATE147135T1 (en) | 1991-06-17 | 1997-01-15 | Electric Power Res Inst | ENERGY SYSTEM WITH COMPRESSED AIR STORAGE |
DK0519573T3 (en) | 1991-06-21 | 1995-07-03 | Shell Int Research | Hydrogenation catalyst and process |
IT1248535B (en) | 1991-06-24 | 1995-01-19 | Cise Spa | SYSTEM TO MEASURE THE TRANSFER TIME OF A SOUND WAVE |
US5133406A (en) | 1991-07-05 | 1992-07-28 | Amoco Corporation | Generating oxygen-depleted air useful for increasing methane production |
US5189283A (en) | 1991-08-28 | 1993-02-23 | Shell Oil Company | Current to power crossover heater control |
US5168927A (en) | 1991-09-10 | 1992-12-08 | Shell Oil Company | Method utilizing spot tracer injection and production induced transport for measurement of residual oil saturation |
US5193618A (en) | 1991-09-12 | 1993-03-16 | Chevron Research And Technology Company | Multivalent ion tolerant steam-foaming surfactant composition for use in enhanced oil recovery operations |
US5347070A (en) | 1991-11-13 | 1994-09-13 | Battelle Pacific Northwest Labs | Treating of solid earthen material and a method for measuring moisture content and resistivity of solid earthen material |
US5349859A (en) | 1991-11-15 | 1994-09-27 | Scientific Engineering Instruments, Inc. | Method and apparatus for measuring acoustic wave velocity using impulse response |
DE69209466T2 (en) | 1991-12-16 | 1996-08-14 | Inst Francais Du Petrole | Active or passive monitoring arrangement for underground deposit by means of fixed stations |
CA2058255C (en) | 1991-12-20 | 1997-02-11 | Roland P. Leaute | Recovery and upgrading of hydrocarbons utilizing in situ combustion and horizontal wells |
US5246071A (en) | 1992-01-31 | 1993-09-21 | Texaco Inc. | Steamflooding with alternating injection and production cycles |
US5420402A (en) | 1992-02-05 | 1995-05-30 | Iit Research Institute | Methods and apparatus to confine earth currents for recovery of subsurface volatiles and semi-volatiles |
US5211230A (en) | 1992-02-21 | 1993-05-18 | Mobil Oil Corporation | Method for enhanced oil recovery through a horizontal production well in a subsurface formation by in-situ combustion |
GB9207174D0 (en) | 1992-04-01 | 1992-05-13 | Raychem Sa Nv | Method of forming an electrical connection |
FI92441C (en) | 1992-04-01 | 1994-11-10 | Vaisala Oy | Electric impedance sensor for measurement of physical quantity, especially temperature and method for manufacture of the sensor in question |
US5255740A (en) | 1992-04-13 | 1993-10-26 | Rrkt Company | Secondary recovery process |
US5332036A (en) | 1992-05-15 | 1994-07-26 | The Boc Group, Inc. | Method of recovery of natural gases from underground coal formations |
MY108830A (en) | 1992-06-09 | 1996-11-30 | Shell Int Research | Method of completing an uncased section of a borehole |
US5392854A (en) | 1992-06-12 | 1995-02-28 | Shell Oil Company | Oil recovery process |
US5255742A (en) | 1992-06-12 | 1993-10-26 | Shell Oil Company | Heat injection process |
US5297626A (en) | 1992-06-12 | 1994-03-29 | Shell Oil Company | Oil recovery process |
US5226961A (en) | 1992-06-12 | 1993-07-13 | Shell Oil Company | High temperature wellbore cement slurry |
US5236039A (en) | 1992-06-17 | 1993-08-17 | General Electric Company | Balanced-line RF electrode system for use in RF ground heating to recover oil from oil shale |
US5295763A (en) | 1992-06-30 | 1994-03-22 | Chambers Development Co., Inc. | Method for controlling gas migration from a landfill |
JP3276407B2 (en) * | 1992-07-03 | 2002-04-22 | 東京瓦斯株式会社 | How to collect underground hydrocarbon hydrates |
US5315065A (en) | 1992-08-21 | 1994-05-24 | Donovan James P O | Versatile electrically insulating waterproof connectors |
US5305829A (en) | 1992-09-25 | 1994-04-26 | Chevron Research And Technology Company | Oil production from diatomite formations by fracture steamdrive |
US5229583A (en) | 1992-09-28 | 1993-07-20 | Shell Oil Company | Surface heating blanket for soil remediation |
US5276720A (en) * | 1992-11-02 | 1994-01-04 | General Electric Company | Emergency cooling system and method |
US5339904A (en) | 1992-12-10 | 1994-08-23 | Mobil Oil Corporation | Oil recovery optimization using a well having both horizontal and vertical sections |
US5358045A (en) | 1993-02-12 | 1994-10-25 | Chevron Research And Technology Company, A Division Of Chevron U.S.A. Inc. | Enhanced oil recovery method employing a high temperature brine tolerant foam-forming composition |
CA2096034C (en) | 1993-05-07 | 1996-07-02 | Kenneth Edwin Kisman | Horizontal well gravity drainage combustion process for oil recovery |
US5360067A (en) | 1993-05-17 | 1994-11-01 | Meo Iii Dominic | Vapor-extraction system for removing hydrocarbons from soil |
US5384430A (en) * | 1993-05-18 | 1995-01-24 | Baker Hughes Incorporated | Double armor cable with auxiliary line |
SE503278C2 (en) | 1993-06-07 | 1996-05-13 | Kabeldon Ab | Method of jointing two cable parts, as well as joint body and mounting tool for use in the process |
US5325918A (en) | 1993-08-02 | 1994-07-05 | The United States Of America As Represented By The United States Department Of Energy | Optimal joule heating of the subsurface |
WO1995006093A1 (en) | 1993-08-20 | 1995-03-02 | Technological Resources Pty. Ltd. | Enhanced hydrocarbon recovery method |
US5358058A (en) * | 1993-09-27 | 1994-10-25 | Reedrill, Inc. | Drill automation control system |
US5377556A (en) * | 1993-09-27 | 1995-01-03 | Teleflex Incorporated | Core element tension mechanism having length adjust |
US5377756A (en) * | 1993-10-28 | 1995-01-03 | Mobil Oil Corporation | Method for producing low permeability reservoirs using a single well |
US5388643A (en) | 1993-11-03 | 1995-02-14 | Amoco Corporation | Coalbed methane recovery using pressure swing adsorption separation |
US5388642A (en) | 1993-11-03 | 1995-02-14 | Amoco Corporation | Coalbed methane recovery using membrane separation of oxygen from air |
US5388645A (en) | 1993-11-03 | 1995-02-14 | Amoco Corporation | Method for producing methane-containing gaseous mixtures |
US5566755A (en) | 1993-11-03 | 1996-10-22 | Amoco Corporation | Method for recovering methane from a solid carbonaceous subterranean formation |
US5388641A (en) | 1993-11-03 | 1995-02-14 | Amoco Corporation | Method for reducing the inert gas fraction in methane-containing gaseous mixtures obtained from underground formations |
US5388640A (en) | 1993-11-03 | 1995-02-14 | Amoco Corporation | Method for producing methane-containing gaseous mixtures |
US5589775A (en) | 1993-11-22 | 1996-12-31 | Vector Magnetics, Inc. | Rotating magnet for distance and direction measurements from a first borehole to a second borehole |
US5411086A (en) | 1993-12-09 | 1995-05-02 | Mobil Oil Corporation | Oil recovery by enhanced imbitition in low permeability reservoirs |
US5435666A (en) | 1993-12-14 | 1995-07-25 | Environmental Resources Management, Inc. | Methods for isolating a water table and for soil remediation |
US5411089A (en) | 1993-12-20 | 1995-05-02 | Shell Oil Company | Heat injection process |
US5404952A (en) | 1993-12-20 | 1995-04-11 | Shell Oil Company | Heat injection process and apparatus |
US5433271A (en) | 1993-12-20 | 1995-07-18 | Shell Oil Company | Heat injection process |
US5634984A (en) | 1993-12-22 | 1997-06-03 | Union Oil Company Of California | Method for cleaning an oil-coated substrate |
MY112792A (en) | 1994-01-13 | 2001-09-29 | Shell Int Research | Method of creating a borehole in an earth formation |
US5453599A (en) | 1994-02-14 | 1995-09-26 | Hoskins Manufacturing Company | Tubular heating element with insulating core |
US5411104A (en) | 1994-02-16 | 1995-05-02 | Conoco Inc. | Coalbed methane drilling |
CA2144597C (en) | 1994-03-18 | 1999-08-10 | Paul J. Latimer | Improved emat probe and technique for weld inspection |
US5415231A (en) | 1994-03-21 | 1995-05-16 | Mobil Oil Corporation | Method for producing low permeability reservoirs using steam |
US5439054A (en) | 1994-04-01 | 1995-08-08 | Amoco Corporation | Method for treating a mixture of gaseous fluids within a solid carbonaceous subterranean formation |
US5553478A (en) | 1994-04-08 | 1996-09-10 | Burndy Corporation | Hand-held compression tool |
US5431224A (en) | 1994-04-19 | 1995-07-11 | Mobil Oil Corporation | Method of thermal stimulation for recovery of hydrocarbons |
US5484020A (en) | 1994-04-25 | 1996-01-16 | Shell Oil Company | Remedial wellbore sealing with unsaturated monomer system |
US5429194A (en) * | 1994-04-29 | 1995-07-04 | Western Atlas International, Inc. | Method for inserting a wireline inside coiled tubing |
US5409071A (en) | 1994-05-23 | 1995-04-25 | Shell Oil Company | Method to cement a wellbore |
US5503226A (en) | 1994-06-22 | 1996-04-02 | Wadleigh; Eugene E. | Process for recovering hydrocarbons by thermally assisted gravity segregation |
AU2241695A (en) | 1994-07-18 | 1996-02-16 | Babcock & Wilcox Co., The | Sensor transport system for flash butt welder |
US5632336A (en) | 1994-07-28 | 1997-05-27 | Texaco Inc. | Method for improving injectivity of fluids in oil reservoirs |
US5747750A (en) | 1994-08-31 | 1998-05-05 | Exxon Production Research Company | Single well system for mapping sources of acoustic energy |
US5449047A (en) * | 1994-09-07 | 1995-09-12 | Ingersoll-Rand Company | Automatic control of drilling system |
US5525322A (en) | 1994-10-12 | 1996-06-11 | The Regents Of The University Of California | Method for simultaneous recovery of hydrogen from water and from hydrocarbons |
US5553189A (en) | 1994-10-18 | 1996-09-03 | Shell Oil Company | Radiant plate heater for treatment of contaminated surfaces |
US5498960A (en) | 1994-10-20 | 1996-03-12 | Shell Oil Company | NMR logging of natural gas in reservoirs |
US5497087A (en) | 1994-10-20 | 1996-03-05 | Shell Oil Company | NMR logging of natural gas reservoirs |
US5624188A (en) | 1994-10-20 | 1997-04-29 | West; David A. | Acoustic thermometer |
MY115387A (en) | 1994-12-21 | 2003-05-31 | Shell Int Research | Steerable drilling with downhole motor |
US5554453A (en) | 1995-01-04 | 1996-09-10 | Energy Research Corporation | Carbonate fuel cell system with thermally integrated gasification |
WO1996021871A1 (en) | 1995-01-12 | 1996-07-18 | Baker Hughes Incorporated | A measurement-while-drilling acoustic system employing multiple, segmented transmitters and receivers |
US6088294A (en) | 1995-01-12 | 2000-07-11 | Baker Hughes Incorporated | Drilling system with an acoustic measurement-while-driving system for determining parameters of interest and controlling the drilling direction |
US6065538A (en) | 1995-02-09 | 2000-05-23 | Baker Hughes Corporation | Method of obtaining improved geophysical information about earth formations |
DE19505517A1 (en) | 1995-02-10 | 1996-08-14 | Siegfried Schwert | Procedure for extracting a pipe laid in the ground |
US5594211A (en) | 1995-02-22 | 1997-01-14 | Burndy Corporation | Electrical solder splice connector |
CA2152521C (en) | 1995-03-01 | 2000-06-20 | Jack E. Bridges | Low flux leakage cables and cable terminations for a.c. electrical heating of oil deposits |
US5621844A (en) | 1995-03-01 | 1997-04-15 | Uentech Corporation | Electrical heating of mineral well deposits using downhole impedance transformation networks |
US5935421A (en) | 1995-05-02 | 1999-08-10 | Exxon Research And Engineering Company | Continuous in-situ combination process for upgrading heavy oil |
US5569845A (en) | 1995-05-16 | 1996-10-29 | Selee Corporation | Apparatus and method for detecting molten salt in molten metal |
US5911898A (en) | 1995-05-25 | 1999-06-15 | Electric Power Research Institute | Method and apparatus for providing multiple autoregulated temperatures |
US5571403A (en) | 1995-06-06 | 1996-11-05 | Texaco Inc. | Process for extracting hydrocarbons from diatomite |
US6015015A (en) | 1995-06-20 | 2000-01-18 | Bj Services Company U.S.A. | Insulated and/or concentric coiled tubing |
AUPN469395A0 (en) | 1995-08-08 | 1995-08-31 | Gearhart United Pty Ltd | Borehole drill bit stabiliser |
US5669275A (en) | 1995-08-18 | 1997-09-23 | Mills; Edward Otis | Conductor insulation remover |
US5801332A (en) | 1995-08-31 | 1998-09-01 | Minnesota Mining And Manufacturing Company | Elastically recoverable silicone splice cover |
JPH0972738A (en) * | 1995-09-05 | 1997-03-18 | Fujii Kiso Sekkei Jimusho:Kk | Method and equipment for inspecting properties of wall surface of bore hole |
US5899958A (en) | 1995-09-11 | 1999-05-04 | Halliburton Energy Services, Inc. | Logging while drilling borehole imaging and dipmeter device |
DE19536378A1 (en) | 1995-09-29 | 1997-04-03 | Bayer Ag | Heterocyclic aryl, alkyl and cycloalkyl acetic acid amides |
US5700161A (en) | 1995-10-13 | 1997-12-23 | Baker Hughes Incorporated | Two-piece lead seal pothead connector |
US5759022A (en) | 1995-10-16 | 1998-06-02 | Gas Research Institute | Method and system for reducing NOx and fuel emissions in a furnace |
GB9521944D0 (en) | 1995-10-26 | 1996-01-03 | Camco Drilling Group Ltd | A drilling assembly for use in drilling holes in subsurface formations |
RU2102587C1 (en) * | 1995-11-10 | 1998-01-20 | Линецкий Александр Петрович | Method for development and increased recovery of oil, gas and other minerals from ground |
US5738178A (en) | 1995-11-17 | 1998-04-14 | Baker Hughes Incorporated | Method and apparatus for navigational drilling with a downhole motor employing independent drill string and bottomhole assembly rotary orientation and rotation |
US5890840A (en) | 1995-12-08 | 1999-04-06 | Carter, Jr.; Ernest E. | In situ construction of containment vault under a radioactive or hazardous waste site |
US5619611A (en) | 1995-12-12 | 1997-04-08 | Tub Tauch-Und Baggertechnik Gmbh | Device for removing downhole deposits utilizing tubular housing and passing electric current through fluid heating medium contained therein |
GB9526120D0 (en) | 1995-12-21 | 1996-02-21 | Raychem Sa Nv | Electrical connector |
PT870100E (en) | 1995-12-27 | 2000-09-29 | Shell Int Research | CHAMBER OF COMBUSTION WITHOUT FLAME AND RESPECTIVE IGNITION PROCESS |
IE960011A1 (en) | 1996-01-10 | 1997-07-16 | Padraig Mcalister | Structural ice composites, processes for their construction¹and their use as artificial islands and other fixed and¹floating structures |
US5751895A (en) | 1996-02-13 | 1998-05-12 | Eor International, Inc. | Selective excitation of heating electrodes for oil wells |
US5784530A (en) | 1996-02-13 | 1998-07-21 | Eor International, Inc. | Iterated electrodes for oil wells |
US5826655A (en) | 1996-04-25 | 1998-10-27 | Texaco Inc | Method for enhanced recovery of viscous oil deposits |
NO302493B1 (en) * | 1996-05-13 | 1998-03-09 | Maritime Hydraulics As | the sliding |
US5652389A (en) | 1996-05-22 | 1997-07-29 | The United States Of America As Represented By The Secretary Of Commerce | Non-contact method and apparatus for inspection of inertia welds |
US6022834A (en) | 1996-05-24 | 2000-02-08 | Oil Chem Technologies, Inc. | Alkaline surfactant polymer flooding composition and process |
US5769569A (en) | 1996-06-18 | 1998-06-23 | Southern California Gas Company | In-situ thermal desorption of heavy hydrocarbons in vadose zone |
US5828797A (en) | 1996-06-19 | 1998-10-27 | Meggitt Avionics, Inc. | Fiber optic linked flame sensor |
WO1997048639A1 (en) | 1996-06-21 | 1997-12-24 | Syntroleum Corporation | Synthesis gas production system and method |
US5788376A (en) | 1996-07-01 | 1998-08-04 | General Motors Corporation | Temperature sensor |
PE17599A1 (en) * | 1996-07-09 | 1999-02-22 | Syntroleum Corp | PROCEDURE TO CONVERT GASES TO LIQUIDS |
US5826653A (en) | 1996-08-02 | 1998-10-27 | Scientific Applications & Research Associates, Inc. | Phased array approach to retrieve gases, liquids, or solids from subaqueous geologic or man-made formations |
US6806233B2 (en) * | 1996-08-02 | 2004-10-19 | M-I Llc | Methods of using reversible phase oil based drilling fluid |
US6116357A (en) | 1996-09-09 | 2000-09-12 | Smith International, Inc. | Rock drill bit with back-reaming protection |
RU2133335C1 (en) * | 1996-09-11 | 1999-07-20 | Юрий Алексеевич Трутнев | Method and device for development of oil deposits and processing of oil |
SE507262C2 (en) | 1996-10-03 | 1998-05-04 | Per Karlsson | Strain relief and tools for application thereof |
US5782301A (en) | 1996-10-09 | 1998-07-21 | Baker Hughes Incorporated | Oil well heater cable |
US5875283A (en) | 1996-10-11 | 1999-02-23 | Lufran Incorporated | Purged grounded immersion heater |
US6079499A (en) | 1996-10-15 | 2000-06-27 | Shell Oil Company | Heater well method and apparatus |
US6056057A (en) | 1996-10-15 | 2000-05-02 | Shell Oil Company | Heater well method and apparatus |
US5861137A (en) | 1996-10-30 | 1999-01-19 | Edlund; David J. | Steam reformer with internal hydrogen purification |
US5816325A (en) * | 1996-11-27 | 1998-10-06 | Future Energy, Llc | Methods and apparatus for enhanced recovery of viscous deposits by thermal stimulation |
US7426961B2 (en) | 2002-09-03 | 2008-09-23 | Bj Services Company | Method of treating subterranean formations with porous particulate materials |
US5862858A (en) | 1996-12-26 | 1999-01-26 | Shell Oil Company | Flameless combustor |
US6427124B1 (en) | 1997-01-24 | 2002-07-30 | Baker Hughes Incorporated | Semblance processing for an acoustic measurement-while-drilling system for imaging of formation boundaries |
SE510452C2 (en) | 1997-02-03 | 1999-05-25 | Asea Brown Boveri | Transformer with voltage regulator |
US5821414A (en) * | 1997-02-07 | 1998-10-13 | Noy; Koen | Survey apparatus and methods for directional wellbore wireline surveying |
US6631563B2 (en) * | 1997-02-07 | 2003-10-14 | James Brosnahan | Survey apparatus and methods for directional wellbore surveying |
US6039121A (en) | 1997-02-20 | 2000-03-21 | Rangewest Technologies Ltd. | Enhanced lift method and apparatus for the production of hydrocarbons |
GB9704181D0 (en) | 1997-02-28 | 1997-04-16 | Thompson James | Apparatus and method for installation of ducts |
US5923170A (en) | 1997-04-04 | 1999-07-13 | Vector Magnetics, Inc. | Method for near field electromagnetic proximity determination for guidance of a borehole drill |
US5926437A (en) | 1997-04-08 | 1999-07-20 | Halliburton Energy Services, Inc. | Method and apparatus for seismic exploration |
US5984578A (en) | 1997-04-11 | 1999-11-16 | New Jersey Institute Of Technology | Apparatus and method for in situ removal of contaminants using sonic energy |
US5802870A (en) | 1997-05-02 | 1998-09-08 | Uop Llc | Sorption cooling process and system |
GB2364381B (en) | 1997-05-02 | 2002-03-06 | Baker Hughes Inc | Downhole injection evaluation system |
WO1998050179A1 (en) | 1997-05-07 | 1998-11-12 | Shell Internationale Research Maatschappij B.V. | Remediation method |
US6023554A (en) | 1997-05-20 | 2000-02-08 | Shell Oil Company | Electrical heater |
US5927408A (en) | 1997-05-22 | 1999-07-27 | Bucyrus International, Inc. | Head brake release with memory and method of controlling a drill head |
AU720947B2 (en) | 1997-06-05 | 2000-06-15 | Shell Internationale Research Maatschappij B.V. | Remediation method |
US6102122A (en) | 1997-06-11 | 2000-08-15 | Shell Oil Company | Control of heat injection based on temperature and in-situ stress measurement |
US6050348A (en) | 1997-06-17 | 2000-04-18 | Canrig Drilling Technology Ltd. | Drilling method and apparatus |
US6112808A (en) | 1997-09-19 | 2000-09-05 | Isted; Robert Edward | Method and apparatus for subterranean thermal conditioning |
CZ298765B6 (en) * | 1997-06-19 | 2008-01-23 | European Organization For Nuclear Research | Method of exposing material to neutron flux, method of producing useful isotope comprising such exposing method and method of transmuting at least one long-lived isotope comprising such exposing method |
US5984010A (en) | 1997-06-23 | 1999-11-16 | Elias; Ramon | Hydrocarbon recovery systems and methods |
CA2208767A1 (en) | 1997-06-26 | 1998-12-26 | Reginald D. Humphreys | Tar sands extraction process |
AU3710697A (en) | 1997-07-01 | 1999-01-25 | Alexandr Petrovich Linetsky | Method for exploiting gas and oil fields and for increasing gas and crude oil output |
US5992522A (en) | 1997-08-12 | 1999-11-30 | Steelhead Reclamation Ltd. | Process and seal for minimizing interzonal migration in boreholes |
US6321862B1 (en) | 1997-09-08 | 2001-11-27 | Baker Hughes Incorporated | Rotary drill bits for directional drilling employing tandem gage pad arrangement with cutting elements and up-drill capability |
US5868202A (en) | 1997-09-22 | 1999-02-09 | Tarim Associates For Scientific Mineral And Oil Exploration Ag | Hydrologic cells for recovery of hydrocarbons or thermal energy from coal, oil-shale, tar-sands and oil-bearing formations |
US6149344A (en) | 1997-10-04 | 2000-11-21 | Master Corporation | Acid gas disposal |
US6354373B1 (en) | 1997-11-26 | 2002-03-12 | Schlumberger Technology Corporation | Expandable tubing for a well bore hole and method of expanding |
FR2772137B1 (en) | 1997-12-08 | 1999-12-31 | Inst Francais Du Petrole | SEISMIC MONITORING METHOD OF AN UNDERGROUND ZONE DURING OPERATION ALLOWING BETTER IDENTIFICATION OF SIGNIFICANT EVENTS |
ATE236343T1 (en) | 1997-12-11 | 2003-04-15 | Alberta Res Council | PETROLEUM PROCESSING PROCESS IN SITU |
US6152987A (en) | 1997-12-15 | 2000-11-28 | Worcester Polytechnic Institute | Hydrogen gas-extraction module and method of fabrication |
US6094048A (en) | 1997-12-18 | 2000-07-25 | Shell Oil Company | NMR logging of natural gas reservoirs |
NO305720B1 (en) | 1997-12-22 | 1999-07-12 | Eureka Oil Asa | Procedure for increasing oil production from an oil reservoir |
US6026914A (en) | 1998-01-28 | 2000-02-22 | Alberta Oil Sands Technology And Research Authority | Wellbore profiling system |
US6247542B1 (en) | 1998-03-06 | 2001-06-19 | Baker Hughes Incorporated | Non-rotating sensor assembly for measurement-while-drilling applications |
US6269876B1 (en) | 1998-03-06 | 2001-08-07 | Shell Oil Company | Electrical heater |
MA24902A1 (en) | 1998-03-06 | 2000-04-01 | Shell Int Research | ELECTRIC HEATER |
US6540018B1 (en) | 1998-03-06 | 2003-04-01 | Shell Oil Company | Method and apparatus for heating a wellbore |
US6035701A (en) | 1998-04-15 | 2000-03-14 | Lowry; William E. | Method and system to locate leaks in subsurface containment structures using tracer gases |
AU3978399A (en) | 1998-05-12 | 1999-11-29 | Lockheed Martin Corporation | System and process for secondary hydrocarbon recovery |
US6016867A (en) | 1998-06-24 | 2000-01-25 | World Energy Systems, Incorporated | Upgrading and recovery of heavy crude oils and natural bitumens by in situ hydrovisbreaking |
US6016868A (en) | 1998-06-24 | 2000-01-25 | World Energy Systems, Incorporated | Production of synthetic crude oil from heavy hydrocarbons recovered by in situ hydrovisbreaking |
US5958365A (en) | 1998-06-25 | 1999-09-28 | Atlantic Richfield Company | Method of producing hydrogen from heavy crude oil using solvent deasphalting and partial oxidation methods |
NO984235L (en) | 1998-09-14 | 2000-03-15 | Cit Alcatel | Heating system for metal pipes for crude oil transport |
US6388947B1 (en) | 1998-09-14 | 2002-05-14 | Tomoseis, Inc. | Multi-crosswell profile 3D imaging and method |
AU761606B2 (en) | 1998-09-25 | 2003-06-05 | Errol A. Sonnier | System, apparatus, and method for installing control lines in a well |
US6591916B1 (en) * | 1998-10-14 | 2003-07-15 | Coupler Developments Limited | Drilling method |
US6138753A (en) | 1998-10-30 | 2000-10-31 | Mohaupt Family Trust | Technique for treating hydrocarbon wells |
US6192748B1 (en) * | 1998-10-30 | 2001-02-27 | Computalog Limited | Dynamic orienting reference system for directional drilling |
US5968349A (en) | 1998-11-16 | 1999-10-19 | Bhp Minerals International Inc. | Extraction of bitumen from bitumen froth and biotreatment of bitumen froth tailings generated from tar sands |
US20040035582A1 (en) | 2002-08-22 | 2004-02-26 | Zupanick Joseph A. | System and method for subterranean access |
US6280000B1 (en) | 1998-11-20 | 2001-08-28 | Joseph A. Zupanick | Method for production of gas from a coal seam using intersecting well bores |
US6269881B1 (en) | 1998-12-22 | 2001-08-07 | Chevron U.S.A. Inc | Oil recovery method for waxy crude oil using alkylaryl sulfonate surfactants derived from alpha-olefins and the alpha-olefin compositions |
CN2357124Y (en) * | 1999-01-15 | 2000-01-05 | 辽河石油勘探局曙光采油厂 | Expansion heat production packer |
US6078868A (en) | 1999-01-21 | 2000-06-20 | Baker Hughes Incorporated | Reference signal encoding for seismic while drilling measurement |
US6318469B1 (en) | 1999-02-09 | 2001-11-20 | Schlumberger Technology Corp. | Completion equipment having a plurality of fluid paths for use in a well |
US6739409B2 (en) | 1999-02-09 | 2004-05-25 | Baker Hughes Incorporated | Method and apparatus for a downhole NMR MWD tool configuration |
US6429784B1 (en) | 1999-02-19 | 2002-08-06 | Dresser Industries, Inc. | Casing mounted sensors, actuators and generators |
US6283230B1 (en) | 1999-03-01 | 2001-09-04 | Jasper N. Peters | Method and apparatus for lateral well drilling utilizing a rotating nozzle |
US7591304B2 (en) * | 1999-03-05 | 2009-09-22 | Varco I/P, Inc. | Pipe running tool having wireless telemetry |
US6155117A (en) | 1999-03-18 | 2000-12-05 | Mcdermott Technology, Inc. | Edge detection and seam tracking with EMATs |
US6561269B1 (en) | 1999-04-30 | 2003-05-13 | The Regents Of The University Of California | Canister, sealing method and composition for sealing a borehole |
US6110358A (en) | 1999-05-21 | 2000-08-29 | Exxon Research And Engineering Company | Process for manufacturing improved process oils using extraction of hydrotreated distillates |
US6668943B1 (en) * | 1999-06-03 | 2003-12-30 | Exxonmobil Upstream Research Company | Method and apparatus for controlling pressure and detecting well control problems during drilling of an offshore well using a gas-lifted riser |
US6519308B1 (en) * | 1999-06-11 | 2003-02-11 | General Electric Company | Corrosion mitigation system for liquid metal nuclear reactors with passive decay heat removal systems |
US6257334B1 (en) | 1999-07-22 | 2001-07-10 | Alberta Oil Sands Technology And Research Authority | Steam-assisted gravity drainage heavy oil recovery process |
US6269310B1 (en) | 1999-08-25 | 2001-07-31 | Tomoseis Corporation | System for eliminating headwaves in a tomographic process |
US6446737B1 (en) | 1999-09-14 | 2002-09-10 | Deep Vision Llc | Apparatus and method for rotating a portion of a drill string |
US6193010B1 (en) | 1999-10-06 | 2001-02-27 | Tomoseis Corporation | System for generating a seismic signal in a borehole |
US6196350B1 (en) | 1999-10-06 | 2001-03-06 | Tomoseis Corporation | Apparatus and method for attenuating tube waves in a borehole |
DE19948819C2 (en) | 1999-10-09 | 2002-01-24 | Airbus Gmbh | Heating conductor with a connection element and / or a termination element and a method for producing the same |
US6288372B1 (en) | 1999-11-03 | 2001-09-11 | Tyco Electronics Corporation | Electric cable having braidless polymeric ground plane providing fault detection |
US6353706B1 (en) | 1999-11-18 | 2002-03-05 | Uentech International Corporation | Optimum oil-well casing heating |
US6422318B1 (en) | 1999-12-17 | 2002-07-23 | Scioto County Regional Water District #1 | Horizontal well system |
US6452105B2 (en) | 2000-01-12 | 2002-09-17 | Meggitt Safety Systems, Inc. | Coaxial cable assembly with a discontinuous outer jacket |
US6427783B2 (en) | 2000-01-12 | 2002-08-06 | Baker Hughes Incorporated | Steerable modular drilling assembly |
US6633236B2 (en) | 2000-01-24 | 2003-10-14 | Shell Oil Company | Permanent downhole, wireless, two-way telemetry backbone using redundant repeaters |
US6715550B2 (en) | 2000-01-24 | 2004-04-06 | Shell Oil Company | Controllable gas-lift well and valve |
US7259688B2 (en) | 2000-01-24 | 2007-08-21 | Shell Oil Company | Wireless reservoir production control |
US6679332B2 (en) * | 2000-01-24 | 2004-01-20 | Shell Oil Company | Petroleum well having downhole sensors, communication and power |
MY128294A (en) | 2000-03-02 | 2007-01-31 | Shell Int Research | Use of downhole high pressure gas in a gas-lift well |
AU4341301A (en) | 2000-03-02 | 2001-09-12 | Shell Oil Co | Controlled downhole chemical injection |
SE0000688L (en) | 2000-03-02 | 2001-05-21 | Sandvik Ab | Rock drill bit and process for its manufacture |
US7170424B2 (en) | 2000-03-02 | 2007-01-30 | Shell Oil Company | Oil well casting electrical power pick-off points |
US6357526B1 (en) | 2000-03-16 | 2002-03-19 | Kellogg Brown & Root, Inc. | Field upgrading of heavy oil and bitumen |
US6485232B1 (en) | 2000-04-14 | 2002-11-26 | Board Of Regents, The University Of Texas System | Low cost, self regulating heater for use in an in situ thermal desorption soil remediation system |
US6918444B2 (en) | 2000-04-19 | 2005-07-19 | Exxonmobil Upstream Research Company | Method for production of hydrocarbons from organic-rich rock |
GB0009662D0 (en) | 2000-04-20 | 2000-06-07 | Scotoil Group Plc | Gas and oil production |
US20030066642A1 (en) | 2000-04-24 | 2003-04-10 | Wellington Scott Lee | In situ thermal processing of a coal formation producing a mixture with oxygenated hydrocarbons |
US6698515B2 (en) | 2000-04-24 | 2004-03-02 | Shell Oil Company | In situ thermal processing of a coal formation using a relatively slow heating rate |
US7011154B2 (en) | 2000-04-24 | 2006-03-14 | Shell Oil Company | In situ recovery from a kerogen and liquid hydrocarbon containing formation |
US6715546B2 (en) | 2000-04-24 | 2004-04-06 | Shell Oil Company | In situ production of synthesis gas from a hydrocarbon containing formation through a heat source wellbore |
US20030085034A1 (en) | 2000-04-24 | 2003-05-08 | Wellington Scott Lee | In situ thermal processing of a coal formation to produce pyrolsis products |
US6588504B2 (en) | 2000-04-24 | 2003-07-08 | Shell Oil Company | In situ thermal processing of a coal formation to produce nitrogen and/or sulfur containing formation fluids |
US6715548B2 (en) | 2000-04-24 | 2004-04-06 | Shell Oil Company | In situ thermal processing of a hydrocarbon containing formation to produce nitrogen containing formation fluids |
WO2001081239A2 (en) | 2000-04-24 | 2001-11-01 | Shell Internationale Research Maatschappij B.V. | In situ recovery from a hydrocarbon containing formation |
US7096953B2 (en) | 2000-04-24 | 2006-08-29 | Shell Oil Company | In situ thermal processing of a coal formation using a movable heating element |
US6584406B1 (en) | 2000-06-15 | 2003-06-24 | Geo-X Systems, Ltd. | Downhole process control method utilizing seismic communication |
GB2383633A (en) | 2000-06-29 | 2003-07-02 | Paulo S Tubel | Method and system for monitoring smart structures utilizing distributed optical sensors |
US6585046B2 (en) | 2000-08-28 | 2003-07-01 | Baker Hughes Incorporated | Live well heater cable |
US6412559B1 (en) | 2000-11-24 | 2002-07-02 | Alberta Research Council Inc. | Process for recovering methane and/or sequestering fluids |
FR2817172B1 (en) * | 2000-11-29 | 2003-09-26 | Inst Francais Du Petrole | CHEMICAL CONVERSION REACTOR OF A LOAD WITH HEAT SUPPLIES AND CROSS CIRCULATION OF THE LOAD AND A CATALYST |
US20020110476A1 (en) | 2000-12-14 | 2002-08-15 | Maziasz Philip J. | Heat and corrosion resistant cast stainless steels with improved high temperature strength and ductility |
US20020112987A1 (en) | 2000-12-15 | 2002-08-22 | Zhiguo Hou | Slurry hydroprocessing for heavy oil upgrading using supported slurry catalysts |
US6554075B2 (en) * | 2000-12-15 | 2003-04-29 | Halliburton Energy Services, Inc. | CT drilling rig |
US20020112890A1 (en) | 2001-01-22 | 2002-08-22 | Wentworth Steven W. | Conduit pulling apparatus and method for use in horizontal drilling |
US6516891B1 (en) | 2001-02-08 | 2003-02-11 | L. Murray Dallas | Dual string coil tubing injector assembly |
US20020153141A1 (en) | 2001-04-19 | 2002-10-24 | Hartman Michael G. | Method for pumping fluids |
US7040400B2 (en) | 2001-04-24 | 2006-05-09 | Shell Oil Company | In situ thermal processing of a relatively impermeable formation using an open wellbore |
AU2002257221B2 (en) | 2001-04-24 | 2008-12-18 | Shell Internationale Research Maatschappij B.V. | In situ recovery from a oil shale formation |
CA2668387C (en) | 2001-04-24 | 2012-05-22 | Shell Canada Limited | In situ recovery from a tar sands formation |
US6948562B2 (en) | 2001-04-24 | 2005-09-27 | Shell Oil Company | Production of a blending agent using an in situ thermal process in a relatively permeable formation |
US6571888B2 (en) | 2001-05-14 | 2003-06-03 | Precision Drilling Technology Services Group, Inc. | Apparatus and method for directional drilling with coiled tubing |
US6963053B2 (en) | 2001-07-03 | 2005-11-08 | Cci Thermal Technologies, Inc. | Corrugated metal ribbon heating element |
RU2223397C2 (en) * | 2001-07-19 | 2004-02-10 | Хайрединов Нил Шахиджанович | Process of development of oil field |
US20030029617A1 (en) | 2001-08-09 | 2003-02-13 | Anadarko Petroleum Company | Apparatus, method and system for single well solution-mining |
US6591908B2 (en) * | 2001-08-22 | 2003-07-15 | Alberta Science And Research Authority | Hydrocarbon production process with decreasing steam and/or water/solvent ratio |
US6695062B2 (en) * | 2001-08-27 | 2004-02-24 | Baker Hughes Incorporated | Heater cable and method for manufacturing |
US6755251B2 (en) | 2001-09-07 | 2004-06-29 | Exxonmobil Upstream Research Company | Downhole gas separation method and system |
MY129091A (en) | 2001-09-07 | 2007-03-30 | Exxonmobil Upstream Res Co | Acid gas disposal method |
US6470977B1 (en) | 2001-09-18 | 2002-10-29 | Halliburton Energy Services, Inc. | Steerable underreaming bottom hole assembly and method |
US6886638B2 (en) | 2001-10-03 | 2005-05-03 | Schlumbergr Technology Corporation | Field weldable connections |
US6969123B2 (en) | 2001-10-24 | 2005-11-29 | Shell Oil Company | Upgrading and mining of coal |
US7090013B2 (en) | 2001-10-24 | 2006-08-15 | Shell Oil Company | In situ thermal processing of a hydrocarbon containing formation to produce heated fluids |
US7077199B2 (en) | 2001-10-24 | 2006-07-18 | Shell Oil Company | In situ thermal processing of an oil reservoir formation |
RU2305175C2 (en) * | 2001-10-24 | 2007-08-27 | Шелл Интернэшнл Рисерч Маатсхаппий Б.В. | In-situ thermal treatment of hydrocarbon-containing reservoir and upgrading produced fluid before following fluid processing |
BR0213513B8 (en) | 2001-10-24 | 2013-02-19 | Method for soil contamination remediation, and soil remediation system. | |
NZ532089A (en) | 2001-10-24 | 2005-09-30 | Shell Int Research | Installation and use of removable heaters in a hydrocarbon containing formation |
US7104319B2 (en) | 2001-10-24 | 2006-09-12 | Shell Oil Company | In situ thermal processing of a heavy oil diatomite formation |
US7165615B2 (en) | 2001-10-24 | 2007-01-23 | Shell Oil Company | In situ recovery from a hydrocarbon containing formation using conductor-in-conduit heat sources with an electrically conductive material in the overburden |
US6736222B2 (en) | 2001-11-05 | 2004-05-18 | Vector Magnetics, Llc | Relative drill bit direction measurement |
US6679326B2 (en) | 2002-01-15 | 2004-01-20 | Bohdan Zakiewicz | Pro-ecological mining system |
US6684948B1 (en) | 2002-01-15 | 2004-02-03 | Marshall T. Savage | Apparatus and method for heating subterranean formations using fuel cells |
US7032809B1 (en) | 2002-01-18 | 2006-04-25 | Steel Ventures, L.L.C. | Seam-welded metal pipe and method of making the same without seam anneal |
CA2473372C (en) | 2002-01-22 | 2012-11-20 | Presssol Ltd. | Two string drilling system using coil tubing |
US7513318B2 (en) | 2002-02-19 | 2009-04-07 | Smith International, Inc. | Steerable underreamer/stabilizer assembly and method |
US6958195B2 (en) | 2002-02-19 | 2005-10-25 | Utc Fuel Cells, Llc | Steam generator for a PEM fuel cell power plant |
US6715553B2 (en) | 2002-05-31 | 2004-04-06 | Halliburton Energy Services, Inc. | Methods of generating gas in well fluids |
US6942037B1 (en) | 2002-08-15 | 2005-09-13 | Clariant Finance (Bvi) Limited | Process for mitigation of wellbore contaminants |
AU2003260210A1 (en) | 2002-08-21 | 2004-03-11 | Presssol Ltd. | Reverse circulation directional and horizontal drilling using concentric coil tubing |
AU2003261330A1 (en) * | 2002-09-16 | 2004-04-30 | The Regents Of The University Of California | Self-regulating nuclear power module |
US20080069289A1 (en) * | 2002-09-16 | 2008-03-20 | Peterson Otis G | Self-regulating nuclear power module |
JP2004111620A (en) | 2002-09-18 | 2004-04-08 | Murata Mfg Co Ltd | Igniter transformer |
CN1717531B (en) * | 2002-10-24 | 2010-05-26 | 国际壳牌研究有限公司 | Method for processing hydrocarbon-containing stratum |
US8224163B2 (en) | 2002-10-24 | 2012-07-17 | Shell Oil Company | Variable frequency temperature limited heaters |
US6942032B2 (en) | 2002-11-06 | 2005-09-13 | Thomas A. La Rovere | Resistive down hole heating tool |
AU2002357415A1 (en) * | 2002-11-22 | 2004-06-18 | Reduct | Method for determining a track of a geographical trajectory |
US7048051B2 (en) | 2003-02-03 | 2006-05-23 | Gen Syn Fuels | Recovery of products from oil shale |
US7055602B2 (en) | 2003-03-11 | 2006-06-06 | Shell Oil Company | Method and composition for enhanced hydrocarbons recovery |
FR2853904B1 (en) | 2003-04-15 | 2007-11-16 | Air Liquide | PROCESS FOR THE PRODUCTION OF HYDROCARBON LIQUIDS USING A FISCHER-TROPSCH PROCESS |
NZ567052A (en) | 2003-04-24 | 2009-11-27 | Shell Int Research | Thermal process for subsurface formations |
US6951250B2 (en) | 2003-05-13 | 2005-10-04 | Halliburton Energy Services, Inc. | Sealant compositions and methods of using the same to isolate a subterranean zone from a disposal well |
WO2005010320A1 (en) | 2003-06-24 | 2005-02-03 | Exxonmobil Upstream Research Company | Methods of treating a subterranean formation to convert organic matter into producible hydrocarbons |
US6881897B2 (en) | 2003-07-10 | 2005-04-19 | Yazaki Corporation | Shielding structure of shielding electric wire |
US7073577B2 (en) | 2003-08-29 | 2006-07-11 | Applied Geotech, Inc. | Array of wells with connected permeable zones for hydrocarbon recovery |
US7114880B2 (en) | 2003-09-26 | 2006-10-03 | Carter Jr Ernest E | Process for the excavation of buried waste |
US7147057B2 (en) | 2003-10-06 | 2006-12-12 | Halliburton Energy Services, Inc. | Loop systems and methods of using the same for conveying and distributing thermal energy into a wellbore |
AU2004288130B2 (en) | 2003-11-03 | 2009-12-17 | Exxonmobil Upstream Research Company | Hydrocarbon recovery from impermeable oil shales |
US6978837B2 (en) * | 2003-11-13 | 2005-12-27 | Yemington Charles R | Production of natural gas from hydrates |
JP3914994B2 (en) * | 2004-01-28 | 2007-05-16 | 独立行政法人産業技術総合研究所 | Integrated facilities with natural gas production facilities and power generation facilities from methane hydrate sediments |
GB2412389A (en) * | 2004-03-27 | 2005-09-28 | Cleansorb Ltd | Process for treating underground formations |
US7320364B2 (en) | 2004-04-23 | 2008-01-22 | Shell Oil Company | Inhibiting reflux in a heated well of an in situ conversion system |
CA2804060C (en) | 2004-09-03 | 2015-08-25 | Watlow Electric Manufacturing Company | Power control system |
US7398823B2 (en) | 2005-01-10 | 2008-07-15 | Conocophillips Company | Selective electromagnetic production tool |
AU2006239999B2 (en) | 2005-04-22 | 2010-06-17 | Shell Internationale Research Maatschappij B.V. | In situ conversion process systems utilizing wellbores in at least two regions of a formation |
US8224165B2 (en) | 2005-04-22 | 2012-07-17 | Shell Oil Company | Temperature limited heater utilizing non-ferromagnetic conductor |
US7600585B2 (en) | 2005-05-19 | 2009-10-13 | Schlumberger Technology Corporation | Coiled tubing drilling rig |
US20070044957A1 (en) | 2005-05-27 | 2007-03-01 | Oil Sands Underground Mining, Inc. | Method for underground recovery of hydrocarbons |
US7849934B2 (en) | 2005-06-07 | 2010-12-14 | Baker Hughes Incorporated | Method and apparatus for collecting drill bit performance data |
WO2007002111A1 (en) | 2005-06-20 | 2007-01-04 | Ksn Energies, Llc | Method and apparatus for in-situ radiofrequency assisted gravity drainage of oil (ragd) |
EP1932006B1 (en) | 2005-10-03 | 2014-04-23 | Wirescan AS | System and method for monitoring of electrical cables |
US7303007B2 (en) | 2005-10-07 | 2007-12-04 | Weatherford Canada Partnership | Method and apparatus for transmitting sensor response data and power through a mud motor |
EP1941003B1 (en) | 2005-10-24 | 2011-02-23 | Shell Internationale Research Maatschappij B.V. | Methods of filtering a liquid stream produced from an in situ heat treatment process |
RU2303198C1 (en) * | 2006-01-10 | 2007-07-20 | Государственное образовательное учреждение высшего профессионального образования Самарский государственный технический университет | Boiler plant |
US7647967B2 (en) * | 2006-01-12 | 2010-01-19 | Jimni Development LLC | Drilling and opening reservoir using an oriented fissure to enhance hydrocarbon flow and method of making |
US7743826B2 (en) | 2006-01-20 | 2010-06-29 | American Shale Oil, Llc | In situ method and system for extraction of oil from shale |
JP4298709B2 (en) | 2006-01-26 | 2009-07-22 | 矢崎総業株式会社 | Terminal processing method and terminal processing apparatus for shielded wire |
US7445041B2 (en) * | 2006-02-06 | 2008-11-04 | Shale And Sands Oil Recovery Llc | Method and system for extraction of hydrocarbons from oil shale |
RU2418158C2 (en) | 2006-02-16 | 2011-05-10 | ШЕВРОН Ю. Эс. Эй. ИНК. | Extraction method of kerogenes from underground shale formation and explosion method of underground shale formation |
US8127865B2 (en) | 2006-04-21 | 2012-03-06 | Osum Oil Sands Corp. | Method of drilling from a shaft for underground recovery of hydrocarbons |
US7644993B2 (en) | 2006-04-21 | 2010-01-12 | Exxonmobil Upstream Research Company | In situ co-development of oil shale with mineral recovery |
US7533719B2 (en) | 2006-04-21 | 2009-05-19 | Shell Oil Company | Wellhead with non-ferromagnetic materials |
US7461705B2 (en) * | 2006-05-05 | 2008-12-09 | Varco I/P, Inc. | Directional drilling control |
CN101131886A (en) * | 2006-08-21 | 2008-02-27 | 吕应中 | Inherently safe, nuclear proliferation-proof and low-cost nuclear energy production method and device |
US7705607B2 (en) | 2006-08-25 | 2010-04-27 | Instrument Manufacturing Company | Diagnostic methods for electrical cables utilizing axial tomography |
ITMI20061648A1 (en) | 2006-08-29 | 2008-02-29 | Star Progetti Tecnologie Applicate Spa | HEAT IRRADIATION DEVICE THROUGH INFRARED |
US8528636B2 (en) | 2006-09-13 | 2013-09-10 | Baker Hughes Incorporated | Instantaneous measurement of drillstring orientation |
CA2870889C (en) | 2006-09-14 | 2016-11-01 | Ernest E. Carter, Jr. | Method of forming subterranean barriers with molten wax |
GB0618108D0 (en) * | 2006-09-14 | 2006-10-25 | Technip France Sa | Subsea umbilical |
US7622677B2 (en) | 2006-09-26 | 2009-11-24 | Accutru International Corporation | Mineral insulated metal sheathed cable connector and method of forming the connector |
US7665524B2 (en) | 2006-09-29 | 2010-02-23 | Ut-Battelle, Llc | Liquid metal heat exchanger for efficient heating of soils and geologic formations |
US20080078552A1 (en) | 2006-09-29 | 2008-04-03 | Osum Oil Sands Corp. | Method of heating hydrocarbons |
WO2008048456A2 (en) | 2006-10-13 | 2008-04-24 | Exxonmobil Upstream Research Company | Optimized well spacing for in situ shale oil development |
AU2007313388B2 (en) | 2006-10-13 | 2013-01-31 | Exxonmobil Upstream Research Company | Heating an organic-rich rock formation in situ to produce products with improved properties |
CA2663650A1 (en) | 2006-10-13 | 2008-04-24 | Exxonmobil Upstream Research Company | Improved method of developing a subsurface freeze zone using formation fractures |
GB2455947B (en) | 2006-10-20 | 2011-05-11 | Shell Int Research | Heating hydrocarbon containing formations in a checkerboard pattern staged process |
US7823655B2 (en) | 2007-09-21 | 2010-11-02 | Canrig Drilling Technology Ltd. | Directional drilling control |
US7730936B2 (en) | 2007-02-07 | 2010-06-08 | Schlumberger Technology Corporation | Active cable for wellbore heating and distributed temperature sensing |
DE102007040606B3 (en) | 2007-08-27 | 2009-02-26 | Siemens Ag | Method and device for the in situ production of bitumen or heavy oil |
RU2339809C1 (en) * | 2007-03-12 | 2008-11-27 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Method for construction and operation of steam well |
CA2675780C (en) | 2007-03-22 | 2015-05-26 | Exxonmobil Upstream Research Company | Granular electrical connections for in situ formation heating |
WO2008123352A1 (en) | 2007-03-28 | 2008-10-16 | Nec Corporation | Semiconductor device |
GB2460980B (en) | 2007-04-20 | 2011-11-02 | Shell Int Research | Controlling and assessing pressure conditions during treatment of tar sands formations |
US7788967B2 (en) | 2007-05-02 | 2010-09-07 | Praxair Technology, Inc. | Method and apparatus for leak detection |
BRPI0810752A2 (en) | 2007-05-15 | 2014-10-21 | Exxonmobil Upstream Res Co | METHODS FOR IN SITU HEATING OF A RICH ROCK FORMATION IN ORGANIC COMPOUND, IN SITU HEATING OF A TARGETED XISTO TRAINING AND TO PRODUCE A FLUID OF HYDROCARBON, SQUARE FOR A RACHOSETUS ORGANIC BUILDING , AND FIELD TO PRODUCE A HYDROCARBON FLUID FROM A TRAINING RICH IN A TARGET ORGANIC COMPOUND. |
CA2687387C (en) | 2007-05-31 | 2012-08-28 | Ernest. E. Carter, Jr. | Method for construction of subterranean barriers |
CN201106404Y (en) * | 2007-10-10 | 2008-08-27 | 中国石油天然气集团公司 | Reaming machine special for casing tube welldrilling |
US8146661B2 (en) | 2007-10-19 | 2012-04-03 | Shell Oil Company | Cryogenic treatment of gas |
CA2705198A1 (en) | 2007-11-19 | 2009-05-28 | Shell Internationale Research Maatschappij B.V. | Systems and methods for producing oil and/or gas |
US20090139716A1 (en) | 2007-12-03 | 2009-06-04 | Osum Oil Sands Corp. | Method of recovering bitumen from a tunnel or shaft with heating elements and recovery wells |
WO2009100300A1 (en) | 2008-02-07 | 2009-08-13 | Shell Oil Company | Method and composition for enhanced hydrocarbons recovery |
MX2010008646A (en) | 2008-02-07 | 2010-08-31 | Shell Int Research | Method and composition for enhanced hydrocarbons recovery. |
US7888933B2 (en) | 2008-02-15 | 2011-02-15 | Schlumberger Technology Corporation | Method for estimating formation hydrocarbon saturation using nuclear magnetic resonance measurements |
US20090207041A1 (en) | 2008-02-19 | 2009-08-20 | Baker Hughes Incorporated | Downhole measurement while drilling system and method |
WO2009129143A1 (en) | 2008-04-18 | 2009-10-22 | Shell Oil Company | Systems, methods, and processes utilized for treating hydrocarbon containing subsurface formations |
US8277642B2 (en) | 2008-06-02 | 2012-10-02 | Korea Technology Industries, Co., Ltd. | System for separating bitumen from oil sands |
WO2010045115A2 (en) | 2008-10-13 | 2010-04-22 | Shell Oil Company | Treating subsurface hydrocarbon containing formations and the systems, methods, and processes utilized |
US7909093B2 (en) | 2009-01-15 | 2011-03-22 | Conocophillips Company | In situ combustion as adjacent formation heat source |
US8812069B2 (en) | 2009-01-29 | 2014-08-19 | Hyper Tech Research, Inc | Low loss joint for superconducting wire |
US20120018421A1 (en) | 2009-04-02 | 2012-01-26 | Tyco Thermal Controls Llc | Mineral insulated skin effect heating cable |
CA2758192A1 (en) | 2009-04-10 | 2010-10-14 | Shell Internationale Research Maatschappij B.V. | Treatment methodologies for subsurface hydrocarbon containing formations |
WO2010132704A2 (en) | 2009-05-15 | 2010-11-18 | American Shale Oil, Llc | In situ method and system for extraction of oil from shale |
US8816203B2 (en) | 2009-10-09 | 2014-08-26 | Shell Oil Company | Compacted coupling joint for coupling insulated conductors |
US8356935B2 (en) | 2009-10-09 | 2013-01-22 | Shell Oil Company | Methods for assessing a temperature in a subsurface formation |
US8502120B2 (en) | 2010-04-09 | 2013-08-06 | Shell Oil Company | Insulating blocks and methods for installation in insulated conductor heaters |
US8631866B2 (en) | 2010-04-09 | 2014-01-21 | Shell Oil Company | Leak detection in circulated fluid systems for heating subsurface formations |
US8939207B2 (en) | 2010-04-09 | 2015-01-27 | Shell Oil Company | Insulated conductor heaters with semiconductor layers |
US8833453B2 (en) | 2010-04-09 | 2014-09-16 | Shell Oil Company | Electrodes for electrical current flow heating of subsurface formations with tapered copper thickness |
US9033042B2 (en) | 2010-04-09 | 2015-05-19 | Shell Oil Company | Forming bitumen barriers in subsurface hydrocarbon formations |
US9127538B2 (en) | 2010-04-09 | 2015-09-08 | Shell Oil Company | Methodologies for treatment of hydrocarbon formations using staged pyrolyzation |
CA2811795A1 (en) | 2010-10-08 | 2012-04-12 | Renfeng Richard Cao | Methods of heating a subsurface formation using electrically conductive particles |
RU2587459C2 (en) | 2011-04-08 | 2016-06-20 | Шелл Интернэшнл Рисерч Маатсхаппий Б.В. | Systems for joining insulated conductors |
WO2013052566A1 (en) | 2011-10-07 | 2013-04-11 | Shell Oil Company | Using dielectric properties of an insulated conductor in a subsurface formation to assess properties of the insulated conductor |
US20130087551A1 (en) | 2011-10-07 | 2013-04-11 | Shell Oil Company | Insulated conductors with dielectric screens |
-
2009
- 2009-10-09 WO PCT/US2009/060162 patent/WO2010045115A2/en active Application Filing
- 2009-10-09 AU AU2009303605A patent/AU2009303605B2/en not_active Ceased
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