WO2006076547B1 - System and method for producing fluids from a subterranean formation - Google Patents

System and method for producing fluids from a subterranean formation

Info

Publication number
WO2006076547B1
WO2006076547B1 PCT/US2006/001180 US2006001180W WO2006076547B1 WO 2006076547 B1 WO2006076547 B1 WO 2006076547B1 US 2006001180 W US2006001180 W US 2006001180W WO 2006076547 B1 WO2006076547 B1 WO 2006076547B1
Authority
WO
WIPO (PCT)
Prior art keywords
well
flow line
subsurface flow
drainage
recovery well
Prior art date
Application number
PCT/US2006/001180
Other languages
French (fr)
Other versions
WO2006076547A3 (en
WO2006076547A2 (en
Inventor
Stephen A Graham
Charles E Graham Iii
Jonathon G Weiss
Original Assignee
Halliburton Energy Serv Inc
Dynamic Production Inc
Stephen A Graham
Charles E Graham Iii
Jonathon G Weiss
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Halliburton Energy Serv Inc, Dynamic Production Inc, Stephen A Graham, Charles E Graham Iii, Jonathon G Weiss filed Critical Halliburton Energy Serv Inc
Priority to GB0713741A priority Critical patent/GB2437017B/en
Priority to MX2007008515A priority patent/MX2007008515A/en
Priority to BRPI0605923-6A priority patent/BRPI0605923B1/en
Priority to CN2006800022220A priority patent/CN101395338B/en
Priority to CA2595018A priority patent/CA2595018C/en
Publication of WO2006076547A2 publication Critical patent/WO2006076547A2/en
Priority to NO20073658A priority patent/NO341183B1/en
Publication of WO2006076547A3 publication Critical patent/WO2006076547A3/en
Publication of WO2006076547B1 publication Critical patent/WO2006076547B1/en

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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/30—Specific pattern of wells, e.g. optimizing the spacing of wells
    • E21B43/305—Specific pattern of wells, e.g. optimizing the spacing of wells comprising at least one inclined or horizontal well

Abstract

The system of subterranean wells includes a subsurface flow line (20) having at least a portion within or underlining one or more subterranean formations (12). One or more drainage wells (26, 28, 30, 32, and 34) each extend from the surface and intercept at least one of the subterranean formations at a respective interception location. A lower portion of each drainage well is in fluid communication with the subsurface flow line. A recovery well (42) extends from the surface and is also in fluid communication with the subsurface flow line, so that fluids entering the drainage well flow into the subsurface flow line and then into the recovery well.

Claims

AMENDED CLAIMS received by the International Bureau on 22 July 2008 (22.07.2008)
1. A system of subterranean wells, comprising: a subsurface flow line having at least a portion underlying at least one of two or more subterranean formations vertically separated by one or more fluid impermeable layers; a plurality of drainage wells each extending from the surface and intercepting at least two of the two or more subterranean formations each at a respective interception location and having a lower portion in fluid communication with the subsurface flow line, the subsurface flow line between each location of fluid communication with a drainage well and a common recovery well being angled at 45° or less relative to horizontal; and the common recovery well extending from the surface and in fluid communication with the subsurface flow line, such that formation fluids entering the two or more drainage wells from the two or more formations flow into the subsurface flow line and then into the common recovery well.
3. The system as defined in Claim 1 , wherein the common recovery well has a lower section, and wherein at least a portion of each interception location is higher than said recovery well lower section.
5. The system as defined in Claim 1 , further comprising: a primary drainage well extending from the surface and having a lower portion forming the subsurface flow line.
6. The system as defined in Claim 5, wherein the primary drainage well includes a section above the subsurface flow line which intercepts at least two or more subterranean formations.
7. The system as defined in Claim 1 , wherein the subsurface flow line is at least partially within a lowermost one of two or more subterranean formations.
8. The system as defined in Claim 1 , wherein the plurality of drainage wells includes at least one of a perforated casing or a slotted liner for recovery of fluids from the two or more subterranean formations.
9. The system as defined in Claim 1 , wherein the recovery well intercepts at least one of two or more subterranean formations.
10. The system as defined in Claim 1 , wherein the recovery well includes a lower portion forming the subsurface flow line.
11. The system as defined in Claim 1 , further comprising: another subsurface flow line having a portion underlying at least one of two or more subterranean formations vertically separated by one or more impermeable layers; another plurality of drainage wells extending from the surface and intercepting at least two of the two or more subterranean formations each at a respective interception location and having a lower portion in fluid communication with the another subsurface flow line; and the another subsurface flow line being in fluid communication with one of the subsurface flow line and the recovery well, such that fluids from the two or more formations flow into the another subsurface flow line via the another plurality of drainage wells and into the recovery well.
12. The system as defined in Claim 1 further comprising: another recovery well extending from the surface and in fluid communication with the subsurface flow line.
13. A system for producing fluids from two or more subterranean formations, comprising: a primary drainage well extending from the surface, the primary drainage well including a subsurface flow line having at least a portion underlying at least one of the two or more subterranean formations vertically separated by one or more fluid impermeable layers; a plurality of secondary drainage wells each extending from the surface and intercepting at least two of the two or more subterranean formations at a respective interception location and having a lower portion in fluid communication with the subsurface flow line, each secondary drainage well including at least one of a perforated casing or a slotted liner within a subterranean formation; and a common recovery well extending from the surface, with a lower portion in fluid communication with the subsurface flow line, the recovery well including a lift system located in the recovery well.
14. The system as defined in Claim 13, wherein the lift system is at least partially within the lower portion of the recovery well.
15. The system as defined in Claim 13, wherein the subsurface flow line between the location of fluid communication with each of the plurality of drainage wells and the location of fluid communication with the recovery well is angled at 45° or less relative to horizontal.
16. The system as defined in Claim 13, wherein the recovery well lift system includes one or more of a pump driven from the surface by a drive rod, a hydraulically powered jet pump, and a gas lift valve system.
17. The system as defined in Claim 13, wherein the primary drainage well includes a section above the subsurface flow line which intercepts and is in fluid communication with at least one of the two or more subterranean formations.
19. The system as defined in Claim 13, wherein the recovery well intercepts and is in fluid communication with two or more subterranean formations.
20. The system as defined in Claim 13, further comprising: another subsurface flow line having a portion underlying at least one of two or more subterranean formations vertically separated by one or more impermeable layers; another plurality of secondary drainage wells each extending from the surface and intercepting at least two of the two or more subterranean formations at respective interception locations and having a lower portion in fluid communication with the another subsurface flow line; and the another subsurface flow line being in fluid communication with one of the subsurface flow line and the recovery well, such that fluids from the two or more formations flow into the another subsurface flow line via the another plurality of secondary drainage wells and into the recovery well.
21. The system as defined in Claim 13, wherein at least one of the plurality of secondary drainage wells includes a downhole sensor for sensing one of a formation condition and a fluid condition.
22. The system as defined in Claim 13, wherein at least one of the plurality of secondary drainage wells includes a flow control device for controlling flow into a respective secondary drainage well from one of the two or more subterranean formations.
23. The system as defined in Claim 13, wherein at least one of the plurality of secondary drainage wells includes a flow control device for controlling flow from a respective drainage well to the subsurface flow line.
24. The system as defined in Claim 13, further comprising: an injection well spaced from each of the plurality of secondary drainage wells for injecting fluid into the two or more subterranean formations to move recovery fluids into at least one of the plurality of secondary drainage wells.
25. A method of constructing a well system, comprising: drilling a plurality of drainage wells each extending from the surface and intercepting at least two or more subterranean formations at a respective interception locations, the subterranean formations being vertically separated by one or more fluid impermeable layers; drilling a subsurface flow line having at least a portion underlying at least one of the two or more subterranean formations vertically separated by one or more fluid impermeable layers and in fluid communication with a lower portion of the one or more drainage wells, the subsurface flow line between each location of fluid communication with a drainage well and a common recovery well is angled at 45° or less relative to the horizontal; drilling the common recovery well extending from the surface and in fluid communication with the subsurface flow line; and recovering fluids to the surface through the common recovery well, such that formation fluids entering the plurality of drainage wells flow through the drainage wells and to the subsurface flow line and then to the recovery well.
26. The method as defined in Claim 25, further comprising: drilling a primary drainage well extending from the surface and having a lower portion forming the subsurface flow line.
27. The method as defined in Claim 25, further comprising: forming at least a portion of the subsurface flow line to be in direct fluid communication with at least one of the two or more subterranean formations.
28. The method as defined in Claim 26, further comprising: drilling the recovery well to intercept at least one of the two or more subterranean formations.
29. The method as defined in Claim 25, wherein the subsurface flow line is drilled to be in fluid communication with one or more previously drilled drainage wells and with a previously drilled recovery well.
30. The method as defined in Claim 26, wherein each of the plurality of drainage wells is provided with at least one of a perforated casing or a slotted liner for communication of fluids from the two or more subterranean formations.
31. The method as defined in Claim 25, further comprising: angling the subsurface flow line at 45° or less relative to horizontal between the location of fluid communication with each drainage well and the location of fluid communication with the recovery well.
32. The method as defined in Claim 25, wherein the recovery well has a lower section, and wherein at least a portion of the respective interception location of the plurality of drainage wells is higher than the recovery well lower section.
33. The method as defined in Claim 25, further comprising: providing a lift system within the recovery well, the lift system having one or more of a pump driven from the surface by a drive rod, a hydraulically powered jet pump, and a gas lift valve system.
34. The method as defined in Claim 25, wherein the recovery well is substantially vertical and a drive rod extends from the surface to power a downhole pump.
35. The method as defined in Claim 25, further comprising: providing a downhole sensor in at least one of the plurality of drainage wells for sensing one of a formation condition and a fluid condition.
36. The method as defined in Claim 25, further comprising: performing well stimulation operation from the surface in at least one of the plurality of drainage wells.
37. The method as defined in Claim 36, wherein the well stimulation operation is selected from a group consisting of one or more of a well cleanout, perforating, acidizing, and fracturing the formation.
38. A method of constructing a well system in a field containing one or more existing wells, comprising: providing a common recovery well or re-completing an existing well as a recovery well, the recovery well extending from the surface and including a lower portion; providing a plurality of drainage wells or re-completing an existing well as a drainage well, each of the plurality of drainage wells extending from the surface and including a lower portion, each drainage well intercepting two or more formations at respective interception locations, the two or more formations vertically spaced by one or more impermeable layers; drilling a subsurface flow line having at least a portion underlying at least one of the two or more subterranean formations, such that the subsurface flow line is drilled for fluid communication with the plurality of drainage wells; and providing fluid communication between the subsurface flow line and the common recovery well, wherein the respective interceptions of the plurality of drainage wells are higher than the recovery well lower portion.
39. The method as defined in Claim 38, wherein at least one of the existing drainage wells was previously an injection or recovery well.
40. The method as defined in Claim 38, further comprising: injecting fluids into one or more injection wells spaced from the plurality of drainage wells to move formation fluids into at least one of the plurality of drainage wells.
41. The method as defined in Claim 38, further comprising: providing a recovery string within the recovery well for recovery of fluids from the lower end of the recovery well to the surface.
42. A method for producing fluids from two or more subterranean formations vertically separated by one or more impermeable layers, the method comprising: providing a plurality of drainage wells each extending from the surface and intercepting at least two subterranean formations at respective interception locations; providing a subsurface flow line having at least a portion underlying at least one of the two or more subterranean formations and in fluid communication with a lower portion of the plurality of drainage wells; providing a common recovery well extending from the surface and in fluid communication with the subsurface flow line; and producing fluids from the two or more formations downward via the plurality of drainage wells and then into the subsurface flow line and then into the common recovery well and then to the surface.
43. The method defined in Claim 42, wherein the subsurface flow line between the location of fluid communication with each drainage well and the location of fluid communication with the recovery well is angled at 45° or less relative to horizontal.
44. The method defined in Claim 42, wherein said recovery well has a lower section, and wherein the interception location of each of the one or more drainage wells is higher than said recovery well lower section.
45. The method defined in Claim 42, further comprising: performing a well stimulation operation from the surface in the plurality of drainage wells.
46. The method defined in Claim 42, further comprising: performing a well intervention operation from the surface in the one or more drainage wells while producing fluids from the recovery well, the well intervention operation selected from a group consisting of one or more of a well cleanout, a well and/or formation testing operation, a stimulation operation, a fluid shutoff operation, fluid control device adjustment, and a sensor repair or replacement operation.
47. The method defined in Claim 42, further comprising: providing in at least one of the plurality of drainage wells at least one of a sensor and a flow control device; and altering production from at least one interception location while producing fluids from the recovery well.
PCT/US2006/001180 2005-01-14 2006-01-12 System and method for producing fluids from a subterranean formation WO2006076547A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB0713741A GB2437017B (en) 2006-01-12 2006-01-12 System and method for producing fluids from a subterranean formation
MX2007008515A MX2007008515A (en) 2005-01-14 2006-01-12 System and method for producing fluids from a subterranean formation.
BRPI0605923-6A BRPI0605923B1 (en) 2005-01-14 2006-01-12 "Underground well system, system for producing fluids from two or more underground formations, method of constructing a well system, method of constructing a well system in a field containing one or more existing wells, method of production fluid from two or more underground formations vertically separated by one or more impermeable layers, underground well system for producing fluids, system for producing fluids from one or more underground formations, method of producing fluids from one or more underground formations "
CN2006800022220A CN101395338B (en) 2005-01-14 2006-01-12 System and method for producing fluids from a subterranean formation
CA2595018A CA2595018C (en) 2005-01-14 2006-01-12 System and method for producing fluids from a subterranean formation
NO20073658A NO341183B1 (en) 2005-01-14 2007-07-17 System and method for producing fluids from underground formations

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US64438505P 2005-01-14 2005-01-14
US60/644,385 2005-01-14

Publications (3)

Publication Number Publication Date
WO2006076547A2 WO2006076547A2 (en) 2006-07-20
WO2006076547A3 WO2006076547A3 (en) 2008-10-09
WO2006076547B1 true WO2006076547B1 (en) 2008-11-06

Family

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Family Applications (1)

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PCT/US2006/001180 WO2006076547A2 (en) 2005-01-14 2006-01-12 System and method for producing fluids from a subterranean formation

Country Status (8)

Country Link
US (2) US7451814B2 (en)
CN (1) CN101395338B (en)
BR (1) BRPI0605923B1 (en)
CA (1) CA2595018C (en)
MX (1) MX2007008515A (en)
MY (1) MY143983A (en)
NO (1) NO341183B1 (en)
WO (1) WO2006076547A2 (en)

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Also Published As

Publication number Publication date
US20060157242A1 (en) 2006-07-20
MX2007008515A (en) 2007-11-09
WO2006076547A3 (en) 2008-10-09
US7451814B2 (en) 2008-11-18
MY143983A (en) 2011-07-29
NO341183B1 (en) 2017-09-04
CN101395338B (en) 2013-12-11
CA2595018A1 (en) 2006-07-20
US20090038792A1 (en) 2009-02-12
BRPI0605923A2 (en) 2009-06-02
BRPI0605923B1 (en) 2018-07-03
CN101395338A (en) 2009-03-25
NO20073658L (en) 2007-08-13
WO2006076547A2 (en) 2006-07-20
CA2595018C (en) 2011-08-16
US7819187B2 (en) 2010-10-26

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