IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0949778
(2001-09-10)
|
우선권정보 |
WO-PCT/US00/29972 (2000-10-31) |
발명자
/ 주소 |
- Schultz, Roger L.
- Watson, Brock W.
- Michael, Robert K.
- Masino, James E.
|
출원인 / 주소 |
- Halliburton Energy Services, Inc.
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
15 인용 특허 :
3 |
초록
▼
Electrohydraulic actuators and associated methods are utilized to control the operation of downhole well tool assemblies, representatively flow control devices. In a described embodiment thereof, each actuator is positioned downhole and comprises a self-contained, closed circuit hydraulic system inc
Electrohydraulic actuators and associated methods are utilized to control the operation of downhole well tool assemblies, representatively flow control devices. In a described embodiment thereof, each actuator is positioned downhole and comprises a self-contained, closed circuit hydraulic system including an electrically operable double action primary pump drivingly coupled to an associated well tool assembly via a first hydraulic circuit, and an electrically operable switching pump coupled to the first hydraulic circuit via a second hydraulic circuit interposed therein and operative to selectively alter the control flow of hydraulic fluid to the well tool assembly in a manner reversing its operation. To provide for selective, more rapid control of the well tool assembly, a chargeable accumulator is connected to the hydraulic circuitry and is selectively and drivably communicatable with the well tool assembly.
대표청구항
▼
Electrohydraulic actuators and associated methods are utilized to control the operation of downhole well tool assemblies, representatively flow control devices. In a described embodiment thereof, each actuator is positioned downhole and comprises a self-contained, closed circuit hydraulic system inc
Electrohydraulic actuators and associated methods are utilized to control the operation of downhole well tool assemblies, representatively flow control devices. In a described embodiment thereof, each actuator is positioned downhole and comprises a self-contained, closed circuit hydraulic system including an electrically operable double action primary pump drivingly coupled to an associated well tool assembly via a first hydraulic circuit, and an electrically operable switching pump coupled to the first hydraulic circuit via a second hydraulic circuit interposed therein and operative to selectively alter the control flow of hydraulic fluid to the well tool assembly in a manner reversing its operation. To provide for selective, more rapid control of the well tool assembly, a chargeable accumulator is connected to the hydraulic circuitry and is selectively and drivably communicatable with the well tool assembly. mprises a metal. 11. The method of claim 1, wherein the material comprises a hydrocarbon. 12. The method of claim 1, wherein heating well comprises applying heat to the well from an electrical heater. 13. A method of establishing an elongated conduit that allows for flow of fluid into or out of soil to be remediated, comprising: applying an electrical current to the elongated conduit to resistively heat the conduit; wherein heat applied to the elongated conduit by resistive heating at least partially removes material positioned in openings in the elongated conduit to open the elongated conduit to allow fluid flow into or out of the elongated conduit, and wherein the material is positioned in the openings before insertion of the elongated conduit into the soil; and consolidating packing or soil adjacent to the elongated conduit with melted material from the openings. 14. The method of claim 13, further comprising melting a portion of the material with the heat applied to the elongated conduit. 15. The method of claim 13, further comprising thermally degrading a portion of the material with the heat applied to the elongated conduit. 16. The method of claim 13, wherein the heat applied to the elongated conduit facilitates oxidation of at least a portion of the material blocking the openings. 17. The method of claim 13, further comprising pulling a vacuum within the elongated conduit to draw fluid into the elongated conduit when openings of the elongated conduit are opened. 18. The method of claim 13, further comprising consolidating packing or soil adjacent to the elongated conduit with thermally degraded material from the openings. 19. The method of claim 13, wherein the material comprises a polymer. 20. The method of claim 13, wherein the material comprises a metal. 21. The method of claim 13, wherein the material comprises a hydrocarbon. 22. The method of claim 13, wherein the openings in the elongated conduit comprise slits in the conduit, and wherein long axes of the slits are oriented substantially parallel to a longitudinal axis of the elongated conduit. 23. A method of establishing an elongated conduit that allows for flow of fluid into or out of soil to be remediated, comprising: applying heat to the soil from at least one well external to the elongated conduit; wherein applying heat to the soil comprises heating the at least one well, and transferring heat from the at least one well to the soil; and exposing openings in the elongated conduit by removing a sleeve abutting the elongated conduit that blocks the openings with heat supplied from the at least one well, wherein the sleeve is placed in a position to block the openings before insertion of the elongated conduit into the soil. 24. The method of claim 23, wherein exposing the openings comprises melting at least a portion of the sleeve. 25. The method of claim 23, wherein exposing the openings comprises thermally degrading a portion of the sleeve. 26. The method of claim 23, wherein the heat applied to the soil facilitates oxidation of at least a portion of sleeve. 27. The method of claim 23, wherein applying heat to soil comprises introducing steam into the soil from the at least one well. 28. The method of claim 23, further comprising pulling a vacuum within the elongated conduit to draw fluid into the elongated conduit when openings of the elongated conduit are exposed. 29. The method of claim 23, further comprising consolidating packing or soil adjacent to the elongated conduit with melted material from the sleeve. 30. The method of claim 23, further comprising consolidating packing or soil adjacent to the elongated conduit with thermally degraded material from the sleeve. 31. The method of claim 23, wherein the sleeve is positioned against an inner wall of the elongated conduit. 32. The method of claim 23, wherein the sleeve is positioned against an outer wall of the conduit. 33. The method of claim 23, wherein the sleeve comprises a metal. 34. The method of claim 23, wherein the sleeve comprises a polymer. 35. The method of claim 23, wherein the sleeve comprises a hydrocarbon. 36. The method of claim 23, wherein the openings in the elongated conduit comprise slits in the conduit, and wherein long axes of the slits are oriented substantially parallel to a longitudinal axis of the elongated conduit. 37. A method of establishing an elongated conduit that allows for flow of fluid into or out of soil to be remediated, comprising: applying an electrical current to the elongated conduit to resistively heat the conduit; wherein heat applied to the elongated conduit by resistive heating at least partially removes a sleeve that blocks openings in the elongated conduit to open the elongated conduit to allow fluid flow into or out of the elongated conduit, and wherein the sleeve is positioned to block the openings before the elongated conduit is inserted into the soil; and consolidating packing or soil adjacent to the elongated conduit with melted material from the sleeve. 38. The method of claim 37, further comprising melting a portion of the sleeve with the heat applied to the elongated conduit. 39. The method of claim 37, further comprising thermally degrading a portion of the sleeve with the heat applied to the elongated conduit. 40. The method of claim 37, wherein the heat applied to the elongated conduit facilitates oxidation of at least a portion of the sleeve. 41. The method of claim 37, further comprising pulling a vacuum within the elongated conduit to draw fluid into the elongated conduit when openings of the elongated conduit are opened. 42. The method of claim 37, further comprising consolidating packing or soil adjacent to the elongated conduit with thermally degraded material from the sleeve. 43. The method of claim 37, wherein the sleeve comprises a metal. 44. The method of claim 37, wherein the sleeve comprises a polymer. 45. The method of claim 37, wherein the openings in the elongated conduit comprise slits in the conduit, and wherein long axes of the slits are oriented substantially parallel to a longitudinal axis of the elongated conduit. 46. A method of establishing an elongated conduit that allows for flow of fluid into or out of soil to be remediated, comprising: introducing a chemical into the soil from one or more wells adjacent to the elongated conduit; contacting the elongated conduit with a portion of the chemical to react the chemical with material placed in openings in the elongated conduit, wherein the material is placed in the openings before insertion of the conduit into the soil; wherein the reaction between the chemical and the material at least partially removes some of the material from the openings to open the elongated conduit to fluid flow into or out of the elongated conduit; and consolidating packing or soil adjacent to the elongated conduit with melted material from the sleeve. 47. The method of claim 46, wherein the chemical is a solvent for the material in the openings. 48. The method of claim 46, wherein the chemical chemically reacts with the material in the openings to at least partially decompose the material. 49. The method of claim 46, wherein the chemical oxidizes at least a portion of the material in the openings. 50. The method of claim 46, wherein the chemical comprises an acid that decomposes at least a portion of the material in the openings. 51. The method of claim 46, wherein the chemical comprises a base that decomposes at least a portion of the material in the openings. 52. The method of claim 46, further comprising pulling a vacuum within the elongated conduit to draw fluid into the elongated conduit when one or more openings of the elongated conduit are opened. 53. The method of claim 46, further comprising consolidating packing or soil adjacent to the elongated conduit with chemically degraded material from the openings. 54. The method of claim 46, wherein the material comprises a hydrocarbon. 55. The method of claim 46, wherein the material comprises a polymer. 56. The method of claim 46, wherein the material comprises a metal. 57. The method of claim 46, wherein the material comprises a salt. 58. The method of claim 49, wherein the openings in the elongated conduit comprise slits in the conduit, and wherein long axes of the slits are oriented substantially parallel to a longitudinal axis of the elongated conduit. 59. A method of establishing an elongated conduit that allows for flow of fluid into or out of soil to be remediated, comprising: introducing a chemical into the soil from one or more wells adjacent to the elongated conduit; contacting a sleeve that blocks openings of the elongated conduit with a portion of the chemical to react the chemical with the sleeve and expose at least some of the openings, wherein the sleeve is positioned to block the openings before the elongated conduit is inserted into the soil; and consolidating packing or soil adjacent to the elongated conduit with melted material from the sleeve. 60. The method of claim 59, wherein the chemical is a solvent for the sleeve. 61. The method of claim 59, wherein the chemical chemically reacts with the sleeve to at least partially decompose the sleeve. 62. The method of claim 59, wherein the chemical oxidizes at least a portion of the sleeve. 63. The method of claim 59, wherein the chemical comprises an acid that decomposes at least a portion of the sleeve. 64. The method of claim 59, wherein the chemical comprises a base that decomposes at least a portion of the sleeve. 65. The method of claim 59, further comprising pulling a vacuum within the elongated conduit to draw fluid into the elongated conduit when one or more openings of the elongated conduit are opened. 66. The method of claim 59, further comprising consolidating packing or soil adjacent to the elongated conduit with chemically degraded material from the sleeve. 67. The method of claim 59, wherein the openings in the elongated conduit comprise slits in the conduit, and wherein long axes of the slits are oriented substantially parallel to a longitudinal axis of the elongated conduit.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.