US20080017373A1 - Multiple zone downhole intelligent flow control valve system and method for controlling commingling of flows from multiple zones - Google Patents

Multiple zone downhole intelligent flow control valve system and method for controlling commingling of flows from multiple zones Download PDF

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Publication number
US20080017373A1
US20080017373A1 US11/866,747 US86674707A US2008017373A1 US 20080017373 A1 US20080017373 A1 US 20080017373A1 US 86674707 A US86674707 A US 86674707A US 2008017373 A1 US2008017373 A1 US 2008017373A1
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United States
Prior art keywords
flows
commingling
controlling
valve
zones
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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.)
Abandoned
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US11/866,747
Inventor
Kevin Jones
Greg Olin
Sebastian Wolters
Jesse Constantine
David Bilberry
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Baker Hughes Holdings LLC
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Baker Hughes Inc
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Application filed by Baker Hughes Inc filed Critical Baker Hughes Inc
Priority to US11/866,747 priority Critical patent/US20080017373A1/en
Publication of US20080017373A1 publication Critical patent/US20080017373A1/en
Abandoned legal-status Critical Current

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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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/18—Pipes provided with plural fluid passages
    • 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
    • E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
    • 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
    • E21B43/14—Obtaining from a multiple-zone well
    • 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
    • E21B34/00—Valve arrangements for boreholes or wells
    • E21B34/06—Valve arrangements for boreholes or wells in wells

Definitions

  • a production control system having a series of nested tubular members including at least one axial flow channel and at least two annular flow channels.
  • At least one valve configured and positioned to control flow from each flow channel is provided.
  • a production apparatus having a series of nested tubulars connected to one another such that at least an axial flow channel and at least two annular flow channels are formed.
  • a valve is associated with each of the flow channels and is configured and positioned to independently control flow from each of the flow channels.
  • the method includes physically containing flows from different zones to individual concentric flow channels in a nested tubular arrangement and selectively commingling one or more of the flows by setting at least one valve associated with each flow channel to a closed position one of an infinite number of flow capable positions.
  • FIG. 1 is a schematic cross sectional view of a multiple zone downhole intelligent flow control valve system.
  • a multiple zone downhole intelligent flow control valve system is illustrated generally at 10 in FIG. 1 .
  • One of ordinary skill in the art will recognize the appearance of a well system wherein a section of the casing is illustrated at 12 . Illustrated downhole of the casing section are three distinct production zones 14 , 16 and 18 , respectively. Each zone is schematically illustrated. The individual zones are delineated with packers 20 , 22 and 24 as well as discrete screen sections 26 , 28 and 30 , although it should be understood that a single extended screen section could replace the individual screen sections without changing the function of the device. Extending downhole through the screen sections as identified are two pipes 32 and 34 of different lengths. It will be noted that pipe 32 is smaller than pipe 34 in diameter and is the pipe that extends farther downhole than pipe 34 .
  • Pipe 32 includes an annular packer 36 (or seal) which is nested with packer 20 .
  • Pipe 34 ends with a packer 38 (or seal) nested with packer 22 . This, as is illustrated in the drawing, creates three individual flow channels for produced fluid.
  • the fluid from zone 14 flows up the I.D. of pipe 32 .
  • the fluid produced from zone 16 flows through the annular space between pipe 32 and pipe 34 and the fluid produced from zone 18 flows in the annular space defined by pipe 34 and screen section 30 .
  • each zone of produced fluid enters the cased section 12 of the wellbore separated from each other fluid. Each of these fluids may then be controlled before commingling.
  • valves are supplied within the casing segment area 12 .
  • Extending radially outwardly from a seal 40 at pipe 34 is shroud 42 .
  • Shroud 42 is employed to maintain the fluid produced from zone 18 distinct from the fluids produced from zones 16 and 14 . It will be understood that fluids from zones 14 and 16 are separate until and unless mixed in a space defined by shroud 42 by virtue of valves 44 (pipe 34 ) and 46 (pipe 32 ) being open.
  • valve 44 is connected to pipe 34 to regulate fluid therefrom.
  • Pipe 32 extends through the I.D. of valve 44 and up to a valve 46 which controls fluid production from zone 14 and pipe 32 .
  • Each valve 44 and 46 when open, dumps fluid into shroud 42 and through a holed pipe section (or a valve as desired) 48 (illustrated as holed pipe section). It will be appreciated by those skilled in the art that a plug 49 is installed in pipe 32 immediately uphole of valve 46 to prevent flow of fluid therepast in the lumen of pipe 32 . Were it not for plug 49 , pipe 32 would be contiguous with tubing 50 .
  • Fluid flowing through holed pipe section 48 enters production tubing 50 to continue movement uphole. Fluid produced from zone 18 and moving through an annular space defined by shroud 42 at the inside dimension and by casing segment 12 at the outside dimension, moves through valve 52 , if open, to join the fluid produced through holed pipe section 48 .
  • valve 44 allows or prevents fluid production from zone 16
  • valve 46 allows or prevents production from zone 14
  • valve 52 allows or prevents fluid production from zone 18 .
  • valves 44 , 46 and 52 can therefore selectively close any or all of, and in each permutation thereof, valves 44 , 46 and 52 to produce any combination of the flow streams including a single stream, a combination of streams or all or none of the streams emanating from the formation.
  • Each of the valves as described above may be actuated hydraulically, pneumatically, electrically, mechanically, by combinations of the foregoing and by combinations including at least one of the foregoing etc. either by surface intervention or by intelligent systems in a downhole environment or uphole.
  • At least one sensor would be installed (schematically illustrated as 60 , 62 and 64 ) in each of the producing zones and in each of the valve sections such that parameters such as pressure, temperature, chemical constitution, water cut, pH, solid content, scale buildup, resistivity, and other parameters can be monitored by surface personnel or at least one controller whether surface or downhole controllers or both, (surface or downhole controller schematically illustrated in operable communication with sensors and valves) in order to appropriately modify the condition of the valves to produce the desired fluid.
  • surface or downhole controllers or both surface or downhole controller schematically illustrated in operable communication with sensors and valves
  • automatic adjustment of valves is possible and contemplated.
  • each of the valves be variably actuatable such that pressure biases between the zones can be effectuated whereby water breakthrough can be avoided while maintaining production at an optimized level.
  • the discussion of the apparatus/system above also presents a method for controlling the commingling of well fluids which was heretofore difficult if not impossible in certain well configurations such as multiple zone gravel packs.
  • the method associated with the device described comprises physically containing the flows from different zones in concentrically arranged flow channels as discussed above. The flows are maintained separate until reaching a location where it is possible to valve them such that control is maintained.
  • the method further comprises sensing the fluid parameters somewhere in the flow channel prior to reaching the valve structure in order to allow an operator or a controller to determine that a specific valve should stay closed or should be opened based upon a determination that the fluid being produced is not desired or desired, respectively.
  • the process may be made automatic with appropriate programming for at least one controller.

Abstract

A method for controlling commingling of flows from multiple zones. The method includes physically containing flows from different zones to individual concentric flow channels in a nested tubular arrangement and selectively commingling two or more of the flows by setting at least one valve associated with each flow channel to a closed position or one of an infinite number of flow capable positions.

Description

    CROSS REFERENCE TO RELATED APPLICATIONS
  • This is a continuation patent application of U.S. patent application Ser. No. 10/420,303, filed Apr. 22, 2003, which claims the benefit of an earlier filing date from U.S. Provisional Application Ser. No. 60/378,208 filed May 6, 2002, the entire disclosure of which is incorporated herein by reference.
    • BACKGROUND
  • In the beginnings of drilling for oil and other hydrocarbon resources, a relatively vertical well was drilled into the earth's surface and whatever pockets of fluid were encountered would be produced at the surface. This includes different phases of desired hydrocarbons, water, etc. Many times only a single component of the formation reserve is desired to be produced and it is costly and time consuming to separate the produced fluids into the constituent components thereof once they have been intermingled. In order to alleviate the need for separation, the art has learned to separate zones of production into smaller sections. This can be done in a number of ways including by gravel packing and packing off different sections. After a gravel packing operation, fluids can only enter the wellbore through a holed base pipe in a particular section where those fluids were produced from the formation. One of the problems associated with controlling these individual zones is that the gravel pack (or other downhole arrangement) tends to restrict the I.D. of the tubing string making it difficult to install a valve at that location. Installation of valves uphole of the gravel pack has been limited to two for a significant period of time as there has been no way to control more zones through valves located uphole of the gravel pack.
    • SUMMARY
  • Disclosed here is a production control system having a series of nested tubular members including at least one axial flow channel and at least two annular flow channels.
  • At least one valve configured and positioned to control flow from each flow channel is provided.
  • Further disclosed herein is a production apparatus having a series of nested tubulars connected to one another such that at least an axial flow channel and at least two annular flow channels are formed.
  • A valve is associated with each of the flow channels and is configured and positioned to independently control flow from each of the flow channels.
  • Further disclosed herein is a method for controlling commingling of flows from multiple zones. The method includes physically containing flows from different zones to individual concentric flow channels in a nested tubular arrangement and selectively commingling one or more of the flows by setting at least one valve associated with each flow channel to a closed position one of an infinite number of flow capable positions.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • Referring now to the drawings wherein like elements are numbered alike in the several Figures
  • FIG. 1 is a schematic cross sectional view of a multiple zone downhole intelligent flow control valve system.
    • DETAILED DESCRIPTION
  • A multiple zone downhole intelligent flow control valve system is illustrated generally at 10 in FIG. 1. One of ordinary skill in the art will recognize the appearance of a well system wherein a section of the casing is illustrated at 12. Illustrated downhole of the casing section are three distinct production zones 14, 16 and 18, respectively. Each zone is schematically illustrated. The individual zones are delineated with packers 20, 22 and 24 as well as discrete screen sections 26, 28 and 30, although it should be understood that a single extended screen section could replace the individual screen sections without changing the function of the device. Extending downhole through the screen sections as identified are two pipes 32 and 34 of different lengths. It will be noted that pipe 32 is smaller than pipe 34 in diameter and is the pipe that extends farther downhole than pipe 34. Pipe 32 includes an annular packer 36 (or seal) which is nested with packer 20. Pipe 34 ends with a packer 38 (or seal) nested with packer 22. This, as is illustrated in the drawing, creates three individual flow channels for produced fluid. The fluid from zone 14 flows up the I.D. of pipe 32. The fluid produced from zone 16 flows through the annular space between pipe 32 and pipe 34 and the fluid produced from zone 18 flows in the annular space defined by pipe 34 and screen section 30. By so segregating the fluids, each zone of produced fluid enters the cased section 12 of the wellbore separated from each other fluid. Each of these fluids may then be controlled before commingling.
  • In order to provide control over all three fluid streams, three separate valves are supplied within the casing segment area 12. Extending radially outwardly from a seal 40 at pipe 34 is shroud 42. Shroud 42 is employed to maintain the fluid produced from zone 18 distinct from the fluids produced from zones 16 and 14. It will be understood that fluids from zones 14 and 16 are separate until and unless mixed in a space defined by shroud 42 by virtue of valves 44 (pipe 34) and 46 (pipe 32) being open. Within shroud 42, valve 44 is connected to pipe 34 to regulate fluid therefrom. Pipe 32 extends through the I.D. of valve 44 and up to a valve 46 which controls fluid production from zone 14 and pipe 32. Each valve 44 and 46, when open, dumps fluid into shroud 42 and through a holed pipe section (or a valve as desired) 48 (illustrated as holed pipe section). It will be appreciated by those skilled in the art that a plug 49 is installed in pipe 32 immediately uphole of valve 46 to prevent flow of fluid therepast in the lumen of pipe 32. Were it not for plug 49, pipe 32 would be contiguous with tubing 50.
  • Fluid flowing through holed pipe section 48 enters production tubing 50 to continue movement uphole. Fluid produced from zone 18 and moving through an annular space defined by shroud 42 at the inside dimension and by casing segment 12 at the outside dimension, moves through valve 52, if open, to join the fluid produced through holed pipe section 48. One of ordinary skill in the art will appreciate that valve 44 allows or prevents fluid production from zone 16, valve 46 allows or prevents production from zone 14 and valve 52 allows or prevents fluid production from zone 18. This is multizonal control where valve structures are maintained in a casing segment of larger diameter uphole of a gravel pack section. A well operator can therefore selectively close any or all of, and in each permutation thereof, valves 44, 46 and 52 to produce any combination of the flow streams including a single stream, a combination of streams or all or none of the streams emanating from the formation. Each of the valves as described above may be actuated hydraulically, pneumatically, electrically, mechanically, by combinations of the foregoing and by combinations including at least one of the foregoing etc. either by surface intervention or by intelligent systems in a downhole environment or uphole. Where intelligent completion systems are employed, at least one sensor would be installed (schematically illustrated as 60, 62 and 64) in each of the producing zones and in each of the valve sections such that parameters such as pressure, temperature, chemical constitution, water cut, pH, solid content, scale buildup, resistivity, and other parameters can be monitored by surface personnel or at least one controller whether surface or downhole controllers or both, (surface or downhole controller schematically illustrated in operable communication with sensors and valves) in order to appropriately modify the condition of the valves to produce the desired fluid. With appropriately programmed controllers, automatic adjustment of valves is possible and contemplated. It should also be noted that it is intended that each of the valves be variably actuatable such that pressure biases between the zones can be effectuated whereby water breakthrough can be avoided while maintaining production at an optimized level.
  • It should now be understood by one of ordinary skill in the relevant art, that the discussion of the apparatus/system above also presents a method for controlling the commingling of well fluids which was heretofore difficult if not impossible in certain well configurations such as multiple zone gravel packs. The method associated with the device described comprises physically containing the flows from different zones in concentrically arranged flow channels as discussed above. The flows are maintained separate until reaching a location where it is possible to valve them such that control is maintained. The method further comprises sensing the fluid parameters somewhere in the flow channel prior to reaching the valve structure in order to allow an operator or a controller to determine that a specific valve should stay closed or should be opened based upon a determination that the fluid being produced is not desired or desired, respectively. The process may be made automatic with appropriate programming for at least one controller.
  • While preferred embodiments have been shown and described, modifications and substitutions may be made thereto without departing from the spirit and scope of the invention. Accordingly, it is to be understood that the present invention has been described by way of illustrations and not limitation.

Claims (3)

1. A method for controlling commingling of flows from multiple zones comprising:
physically containing flows from different zones to individual concentric flow channels in a nested tubular arrangement; and
selectively commingling two or more of the flows by setting at least one valve associated with each flow channel to one of a closed position and an infinite number of flow capable positions.
2. A method for controlling commingling of flows from multiple zones as claimed in claim 1 wherein said method further comprises sensing fluid parameters to determine desirable valve position.
3. A method for controlling commingling of flows from multiple zones as claimed in claim 1 wherein said method further comprises automatically controlling said at least one valve to maintain a desired condition.
US11/866,747 2002-05-06 2007-10-03 Multiple zone downhole intelligent flow control valve system and method for controlling commingling of flows from multiple zones Abandoned US20080017373A1 (en)

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US37820802P 2002-05-06 2002-05-06
US10/420,303 US7370705B2 (en) 2002-05-06 2003-04-22 Multiple zone downhole intelligent flow control valve system and method for controlling commingling of flows from multiple zones
US11/866,747 US20080017373A1 (en) 2002-05-06 2007-10-03 Multiple zone downhole intelligent flow control valve system and method for controlling commingling of flows from multiple zones

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US10/420,303 Continuation US7370705B2 (en) 2002-05-06 2003-04-22 Multiple zone downhole intelligent flow control valve system and method for controlling commingling of flows from multiple zones

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US20080017373A1 true US20080017373A1 (en) 2008-01-24

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US11/866,747 Abandoned US20080017373A1 (en) 2002-05-06 2007-10-03 Multiple zone downhole intelligent flow control valve system and method for controlling commingling of flows from multiple zones

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BR (1) BR0309818A (en)
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NO (1) NO335238B1 (en)
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BR0309818A (en) 2005-03-01
CA2485123C (en) 2009-07-21
US7370705B2 (en) 2008-05-13
CA2485123A1 (en) 2003-11-20
US20030226665A1 (en) 2003-12-11
WO2003095794A1 (en) 2003-11-20
GB2405426B (en) 2006-09-20
RU2320850C2 (en) 2008-03-27
RU2004136159A (en) 2005-09-20
GB2405426A (en) 2005-03-02
AU2003228798B2 (en) 2008-06-26
NO335238B1 (en) 2014-10-27
GB0425169D0 (en) 2004-12-15
AU2003228798A1 (en) 2003-11-11
NO20044869L (en) 2004-12-01

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