Method of using carbon dioxide in recovery of formation deposits
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E21B-043/243
E21B-036/02
E21B-043/16
E21B-043/40
출원번호
US-0236095
(2011-09-19)
등록번호
US-8869889
(2014-10-28)
발명자
/ 주소
Palmer, Miles
Allam, Rodney John
Fetvedt, Jeremy Eron
Freed, David Arthur
Brown, Jr., Glenn William
출원인 / 주소
Palmer Labs, LLC
대리인 / 주소
Womble Carlyle Sandridge & Rice, LLP
인용정보
피인용 횟수 :
2인용 특허 :
124
초록▼
The present invention relates to systems, apparatuses, and methods for providing a reliable, high purity source of CO2 that is used in the recovery of formation deposits, such as fossil fuels. At least a portion of the fossil fuels recovered may be directly combusted or extracted using the same proc
The present invention relates to systems, apparatuses, and methods for providing a reliable, high purity source of CO2 that is used in the recovery of formation deposits, such as fossil fuels. At least a portion of the fossil fuels recovered may be directly combusted or extracted using the same process used to provide the pure source of CO2 without the need to first remove CO2, sulfur, other fossil fuels, or other impurities.
대표청구항▼
1. A method for recovering a fuel material deposit from a formation, the method comprising: providing a combustion fuel and an oxidant into a combustor positioned above ground;combusting the combustion fuel to provide a CO2 containing stream comprising supercritical CO2;expanding the CO2 containing
1. A method for recovering a fuel material deposit from a formation, the method comprising: providing a combustion fuel and an oxidant into a combustor positioned above ground;combusting the combustion fuel to provide a CO2 containing stream comprising supercritical CO2;expanding the CO2 containing stream across a turbine adapted for power generation to form an expanded CO2 containing stream; andinjecting at least a portion of the CO2 from the expanded CO2 containing stream into the formation including the fuel material deposit for recovery such that at least a portion of the fuel material in the formation and at least a portion of the CO2 stream flow from the formation and into a recovery well. 2. The method of claim 1, further comprising, prior to said injecting step, passing the expanded CO2 containing stream sequentially through a heat exchanger that cools the CO2 containing stream and through one or more separators that removes one or more secondary components present in the CO2 containing stream. 3. The method of claim 2, further comprising, prior to said injecting step, separating the CO2 containing stream into an injection CO2 stream that is injected into the formation and a recycle CO2 stream that is provided into the combustor as a working fluid. 4. The method of claim 3, further comprising, one or more of compressing the recycle CO2 stream by passing the stream through a compressor and heating the recycle CO2 stream by passing the stream through the heat exchanger that cooled the expanded CO2 containing stream. 5. The method of claim 4, further comprising providing the recycle CO2 stream into the combustor as the working fluid. 6. The method of claim 5, wherein the recycle CO2 stream is provided into the combustor at a pressure of at least about 2 MPa. 7. The method of claim 5, wherein the combustor is a transpiration cooled combustor, and wherein at least a portion of the recycle CO2 stream is provided into the transpiration cooled combustor as at least a portion of a transpiration fluid used to cool the transpiration cooled combustor. 8. The method of claim 5, wherein the recycle CO2 stream provided into the combustor has a purity of at least 95% molar. 9. The method of claim 1, wherein the expanded CO2 containing stream has a pressure of at least about 1.5 MPa. 10. The method of claim 1, wherein the CO2 containing stream injected into the formation has a pressure of at least about 7.5 MPa. 11. The method of claim 1, wherein the CO2 containing stream injected into the formation comprises supercritical CO2. 12. The method of claim 1, wherein the combusting is carried out at a temperature of at least about 400° C. 13. The method of claim 1, further comprising receiving from the recovery well a recovery stream comprising the fuel material and the CO2. 14. The method of claim 13, further comprising separating the recovery stream into a recovered gas stream and a recovered liquid stream. 15. The method of claim 14, wherein the recovered gas stream comprises methane and CO2. 16. The method of claim 15, wherein the recovered gas stream further comprises one or more of C2 hydrocarbons, C3 hydrocarbons, and C4 hydrocarbons. 17. The method of claim 14, wherein the recovered liquid stream comprises petroleum. 18. The method of claim 17, wherein the petroleum comprises crude oil. 19. The method of claim 14, wherein the recovered liquid stream comprises a fluidized solid fuel material. 20. The method of claim 14, comprising directing at least a portion of the recovered gas stream to the combustor as at least a portion of the combustion fuel. 21. The method of claim 14, wherein said separating comprises directing the recovery stream through at least one pressure letdown stage at a defined pressure whereby one or more fuel material gas fractions are withdrawn and the remaining fraction of the recovery stream at the defined pressure comprises liquid fuel material. 22. The method of claim 21, wherein one or more of the fuel material gas fractions comprises the CO2. 23. The method of claim 22, further comprising directing a fuel material gas fraction comprising the CO2 to the combustor as at least a portion of the combustion fuel. 24. The method of claim 23, further comprising passing the fuel material gas fraction through a compressor that increases the pressure of the fuel material gas fraction prior to being introduced into the combustor. 25. The method of claim 24, wherein two or more of the plurality of fuel material gas fractions comprising CO2 are combined and directed to the combustor as at least a portion of the combustion fuel. 26. The method of claim 25, further comprising passing the fuel material gas fractions through a compressor that increases the pressure of the fuel material gas fractions prior to being introduced into the combustor. 27. The method of claim 25, wherein the compressor is a multi-stage compressor. 28. The method of claim 22, wherein the one or more fuel material gas fractions comprising the CO2 include at least about 95% by mass of the total CO2 present in the recovery stream. 29. The method of claim 21, wherein said separating results in a plurality of fuel material gas fractions that each comprise CO2. 30. The method of claim 14, comprising separating the recovered gas stream into a recovered hydrocarbon gas stream and a recovered non-hydrocarbon gas stream. 31. An apparatus for producing a CO2 containing stream down-hole in a well, the apparatus comprising: a combustor;a combustion fuel supply in fluid connection with the combustor;an oxidant supply in fluid connection with the combustor;a chamber within the combustor wherein combustion of the fuel occurs at a temperature of at least about 600° C. to produce the CO2 containing stream; andan outlet on the combustor that delivers the CO2 containing stream from the combustor and into the well, wherein the outlet comprises a conically shaped nozzle that concentrates the CO2 containing stream delivered therefrom. 32. A system for generating CO2 and recovering a fuel material deposit from a formation, the system comprising: a combustor;a combustion fuel supply in fluid connection with the combustor;an oxidant supply in fluid connection with the combustor;a chamber within the combustor configured for receiving and combusting the combustion fuel to provide a CO2 containing stream comprising supercritical CO2;an injection component that delivers the CO2 containing stream into the formation including the fuel material deposit such that at least a portion of the fuel material in the formation and at least a portion of the CO2 stream flow from the formation and into a recovery well as a recovery stream; andone or more processing components for processing the recovered fuel material and CO2 in the recovery stream. 33. The system of claim 32, wherein the one or more processing components comprises an expander that reduces the pressure of the recovery stream. 34. The system of claim 33, wherein the expander comprises a power generation turbine. 35. The system of claim 32, wherein the one or more processing components comprises one or more separation unit. 36. The system of claim 35, wherein the one or more separation units comprises a unit that separates a gas stream from a liquid stream. 37. The system of claim 32, wherein the injection component comprises a pipeline extending into a well formed in the formation. 38. The system of claim 32, wherein one or more of the combustion fuel supply and the oxidant supply comprises piping of sufficient dimensions to deliver the respective material down hole into a well formed in the formation. 39. The system of claim 32, wherein the combustor is configured for use down hole in a well formed in the formation. 40. The system of claim 32, wherein the system is sufficiently modular in construction such that the system can be reconfigured between a transportation state and a CO2 generating state. 41. A method for recovering a fuel material deposit from a formation, the method comprising: providing a combustion fuel and an oxidant into a combustor;combusting the combustion fuel to provide a CO2 containing stream comprising supercritical CO2;injecting at least a portion of the CO2 containing stream into the formation including the fuel material deposit for recovery such that at least a portion of the fuel material in the formation and at least a portion of the CO2 stream flow from the formation and into a recovery well;receiving from the recovery well a recovery stream comprising the fuel material and the CO2; andseparating the recovery stream into a recovered gas stream and a recovered liquid stream.
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