CA2502882A1 - Inhibiting wellbore deformation during in situ thermal processing of a hydrocarbon containing formation - Google Patents
Inhibiting wellbore deformation during in situ thermal processing of a hydrocarbon containing formation Download PDFInfo
- Publication number
- CA2502882A1 CA2502882A1 CA002502882A CA2502882A CA2502882A1 CA 2502882 A1 CA2502882 A1 CA 2502882A1 CA 002502882 A CA002502882 A CA 002502882A CA 2502882 A CA2502882 A CA 2502882A CA 2502882 A1 CA2502882 A1 CA 2502882A1
- Authority
- CA
- Canada
- Prior art keywords
- formation
- heater
- wellbore
- heating
- opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- E21B36/00—Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
- E21B36/008—Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones using chemical heat generating means
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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
- E21B36/00—Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
- E21B36/02—Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones using burners
-
- 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
- E21B36/00—Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
- E21B36/04—Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones using electrical heaters
-
- 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
-
- 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
-
- 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
Abstract
A method for treating a hydrocarbon containing formation (122) is described.
The method may include providing' heat from one or more heaters (128) to at least a portion of the formation. At least one heater may be located in at least one wellbore (120) in the formation. At least one wellbore may be sized, at least in part, based on a determination of formation expansion caused by heating of the formation so that formation expansion caused by heating of the formation is not sufficient to cause substantial deformation of one or more heaters in the sized wellbores. The ratio of the outside diameter of a heater to the inside diameter of a wellbore may be less than about 0.75. In certain embodiments, heat may be allowed to transfer from the one or more heaters to a part of the formation. In some embodiments, a mixture may be produced from the formation.
The method may include providing' heat from one or more heaters (128) to at least a portion of the formation. At least one heater may be located in at least one wellbore (120) in the formation. At least one wellbore may be sized, at least in part, based on a determination of formation expansion caused by heating of the formation so that formation expansion caused by heating of the formation is not sufficient to cause substantial deformation of one or more heaters in the sized wellbores. The ratio of the outside diameter of a heater to the inside diameter of a wellbore may be less than about 0.75. In certain embodiments, heat may be allowed to transfer from the one or more heaters to a part of the formation. In some embodiments, a mixture may be produced from the formation.
Claims (32)
1. A method for treating a hydrocarbon containing formation, comprising:
providing heat from one or more heaters to at least a portion of the formation, wherein at least one heater is in at least one wellbore in the formation, and wherein at least one open wellbore has been sized, at least in part, based on a determination of formation expansion caused by heating of the formation such that formation expansion caused by heating of the formation is not sufficient to cause substantial deformation of one or more heaters in such sized wellbores, and wherein a ratio of the outside diameter of the heater to the inside diameter of the wellbore is less than about 0.75;
allowing the heat to transfer from the one or more heaters to a part of the formation;
producing a mixture from the formation.
providing heat from one or more heaters to at least a portion of the formation, wherein at least one heater is in at least one wellbore in the formation, and wherein at least one open wellbore has been sized, at least in part, based on a determination of formation expansion caused by heating of the formation such that formation expansion caused by heating of the formation is not sufficient to cause substantial deformation of one or more heaters in such sized wellbores, and wherein a ratio of the outside diameter of the heater to the inside diameter of the wellbore is less than about 0.75;
allowing the heat to transfer from the one or more heaters to a part of the formation;
producing a mixture from the formation.
2. The method of claim 1, wherein at least one wellbore comprises an open wellbore.
3. The method of any one of claims 1-2, wherein the ratio of the outside diameter of the heater to the inside diameter of the wellbore is less than about 0.5 or is less than about 0.3.
4. The method of any one of claims 1-3, further comprising controlling the heating to maintain a minimum space of at least about 0.25 cm between at least one heater and the formation in at least one wellbore.
5. The method of any one of claims 1-4, further comprising controlling the heating using a temperature limited heater.
6. The method of any one of claims 1-5, wherein the diameter of one or more of the sized wellbores is greater than or equal to about 30 cm.
7. The method of any one of claims 1-6, wherein one or more of the wellbores have an expanded diameter greater than or equal to about 30 cm proximate to relatively rich zones in the formation.
8. The method of any one of claims 1-7, further comprising adjusting a heat output of at least one heater such that the heat output provided to relatively rich zones of the formation is less than the heat output provided to other zones of the formation or the heat output provided to relatively rich zones of the formation is less than about 1/2 the heat output provided to other zones of the formation.
9. The method of any one of claims 1-8, further comprising perforating one or more relatively rich zones in at least part of the formation to allow for expansion of at least one or more of the relatively rich zones during heating of the formation.
10. The method of any one of claims 7-9, wherein the relatively rich zones comprise a richness greater than about 0.12 L/kg, greater than about 0.15 L/kg, or greater than about 0.17 L/kg.
11. The method of any one of claims 1-10, further comprising reaming at least one wellbore after at least some heating of the formation from the wellbore being reamed, and wherein the reaming is conducted to remove at least some hydrocarbon material that has expanded in the wellbore.
12. The method of any one of claims 1-11, further comprising removing at least one heater from at least one wellbore, and then reaming at least one such wellbore.
13. The method of any one of claims 1-12, further comprising placing a liner in at least one wellbore and between at least a part of a heater and the formation, wherein the liner inhibits heater deformation caused by thermal formation expansion during heating.
14. The method of claim 13, wherein the liner comprises a mechanical strength sufficient to inhibit collapsing of the liner proximate relatively rich zones of the formation.
15. The method of any one of claims 13-14, wherein the liner comprises one or more openings to allow fluids to flow through the wellbore.
16. The method of any one of claims 13-15, wherein an outside diameter of the liner has a ratio to the inside diameter of a corresponding wellbore of less than about 0.75, less than about 0.5, or less than about 0.3.
17. The method of any one of claims 1-16, further comprising maintaining a temperature in at least a portion of the formation in a pyrolysis temperature range with a lower pyrolysis temperature of about 250 °C and an upper pyrolysis temperature of about 400 °C.
18. The method of any one of claims 1-17, further comprising heating at least a part of the formation to substantially pyrolyze at least some of the hydrocarbons in the formation.
19. The method of any one of claims 1-18, further comprising controlling a pressure and a temperature in at least a part of the formation, wherein the pressure is controlled as a function of temperature, or the temperature is controlled as a function of pressure.
20. The method of any one of claims 1-19, wherein allowing the heat to transfer from the one or more heaters to the part of the formation comprises transferring heat substantially by conduction.
21. The method of any one of claims 1-20, wherein the produced mixture comprises condensable hydrocarbons having an API gravity of at least about 25°.
22. The method of any one of claims 1-21, further comprising controlling a pressure in at least a majority of a part of the formation, wherein the controlled pressure is at least about 2.0 bars absolute.
23. The method of any one of claims 1-22, further comprising controlling formation conditions such that the produced mixture comprises a partial pressure of H2 in the mixture greater than about 0.5 bars.
24. The method of any one of claims 1-23, wherein the formation comprises an oil shale formation or a coal formation.
25. A system for treating an oil shale formation according to the method of claims claims 1-24, comprising at least one heater placed in at least one open wellbore.
26. A system configured for treating at least a part of a hydrocarbon containing formation according to the method of any one of claims 1-24, comprising:
an elongated heater located in an opening in the formation, wherein at least a portion of the formation has a richness of at least about 30 gallons of hydrocarbons per ton of formation, as measured by Fischer Assay, and wherein the heater is configured to provide heat to at least a part of the formation during use such that at least a part of the formation is heated to at least about 250 °C;
wherein an initial diameter of the opening is at least 1.5 times the largest transverse cross-sectional dimension of the heater in the opening and proximate the part of the formation being heated configured such that it inhibits the formation from deforming the heater due to expansion of the formation caused by heating of the formation.
an elongated heater located in an opening in the formation, wherein at least a portion of the formation has a richness of at least about 30 gallons of hydrocarbons per ton of formation, as measured by Fischer Assay, and wherein the heater is configured to provide heat to at least a part of the formation during use such that at least a part of the formation is heated to at least about 250 °C;
wherein an initial diameter of the opening is at least 1.5 times the largest transverse cross-sectional dimension of the heater in the opening and proximate the part of the formation being heated configured such that it inhibits the formation from deforming the heater due to expansion of the formation caused by heating of the formation.
27. The system of claim 26, wherein the initial diameter of the opening is at least 2 times the largest transverse cross-sectional dimension of the heater in the opening.
28. The system of any one of claims 26-27, wherein the initial diameter of the opening is sufficiently large enough to inhibit the formation from deforming, seizing, compressing, and/or damaging the heater during heating ofthe formation.
29. The system of any one of claims 26-28, wherein the initial diameter of the opening is at least 3 times, or at least 4 times, the largest transverse cross-sectional dimension of the heater in the opening.
30. The system of any one of claims 26-29, wherein the heater comprises a temperature limited heater.
31. The system of any one of claims 26-30, wherein the heater is located in at least a portion of a deformation resistant container.
32. A method of installing at least one heater in at least one open wellbore for use in any one of claims claims 1-32, comprising:
forming at least one open wellbore; and placing a heater in the formed wellbore.
forming at least one open wellbore; and placing a heater in the formed wellbore.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US42083502P | 2002-10-24 | 2002-10-24 | |
US60/420,835 | 2002-10-24 | ||
US46527903P | 2003-04-24 | 2003-04-24 | |
US60/465,279 | 2003-04-24 | ||
PCT/US2003/034101 WO2004038175A1 (en) | 2002-10-24 | 2003-10-24 | Inhibiting wellbore deformation during in situ thermal processing of a hydrocarbon containing formation |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2502882A1 true CA2502882A1 (en) | 2004-05-06 |
CA2502882C CA2502882C (en) | 2011-08-23 |
Family
ID=32179821
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2503394A Expired - Fee Related CA2503394C (en) | 2002-10-24 | 2003-10-24 | Temperature limited heaters for heating subsurface formations or wellbores |
CA2502843A Expired - Fee Related CA2502843C (en) | 2002-10-24 | 2003-10-24 | Staged and/or patterned heating during in situ thermal processing of a hydrocarbon containing formation |
CA2502882A Expired - Fee Related CA2502882C (en) | 2002-10-24 | 2003-10-24 | Inhibiting wellbore deformation during in situ thermal processing of a hydrocarbon containing formation |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2503394A Expired - Fee Related CA2503394C (en) | 2002-10-24 | 2003-10-24 | Temperature limited heaters for heating subsurface formations or wellbores |
CA2502843A Expired - Fee Related CA2502843C (en) | 2002-10-24 | 2003-10-24 | Staged and/or patterned heating during in situ thermal processing of a hydrocarbon containing formation |
Country Status (7)
Country | Link |
---|---|
US (9) | US8200072B2 (en) |
EP (1) | EP1556580A1 (en) |
AU (1) | AU2003285008B2 (en) |
CA (3) | CA2503394C (en) |
EA (1) | EA009586B1 (en) |
IL (1) | IL168125A (en) |
WO (3) | WO2004038173A1 (en) |
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- 2003-10-24 EA EA200500697A patent/EA009586B1/en not_active IP Right Cessation
- 2003-10-24 WO PCT/US2003/034101 patent/WO2004038175A1/en active Search and Examination
- 2003-10-24 CA CA2502843A patent/CA2502843C/en not_active Expired - Fee Related
- 2003-10-24 US US10/693,818 patent/US7073578B2/en not_active Expired - Fee Related
- 2003-10-24 US US10/693,840 patent/US8224164B2/en not_active Expired - Fee Related
- 2003-10-24 US US10/693,841 patent/US20040144541A1/en not_active Abandoned
- 2003-10-24 WO PCT/US2003/033850 patent/WO2004038174A2/en not_active Application Discontinuation
- 2003-10-24 US US10/693,820 patent/US8238730B2/en active Active
- 2003-10-24 EP EP03777883A patent/EP1556580A1/en not_active Withdrawn
- 2003-10-24 US US10/693,700 patent/US8224163B2/en not_active Expired - Fee Related
- 2003-10-24 US US10/693,819 patent/US7121341B2/en not_active Expired - Fee Related
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