Thermal recovery of shallow bitumen through increased permeability inclusions
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E21B-043/24
E21B-036/00
E21B-043/26
출원번호
US-0411542
(2012-03-03)
등록번호
US-8863840
(2014-10-21)
발명자
/ 주소
Schultz, Roger L.
Cavender, Travis W.
Hocking, Grant
출원인 / 주소
Halliburton Energy Services, Inc.
대리인 / 주소
Smith IP Services, P.C.
인용정보
피인용 횟수 :
2인용 특허 :
144
초록▼
Systems and methods for thermal recovery of shallow bitumen using increased permeability inclusions. A method of producing hydrocarbons from a subterranean formation includes the steps of: propagating at least one generally planar inclusion outward from a wellbore into the formation; injecting a flu
Systems and methods for thermal recovery of shallow bitumen using increased permeability inclusions. A method of producing hydrocarbons from a subterranean formation includes the steps of: propagating at least one generally planar inclusion outward from a wellbore into the formation; injecting a fluid into the inclusion, thereby heating the hydrocarbons; and during the injecting step, producing the hydrocarbons from the wellbore. A well system includes at least one generally planar inclusion extending outward from a wellbore into a formation; a fluid injected into the inclusion, hydrocarbons being heated as a result of the injected fluid; and a tubular string through which the hydrocarbons are produced, the tubular string extending to a location in the wellbore below the inclusion, and the hydrocarbons being received into the tubular string at that location.
대표청구항▼
1. A method of producing hydrocarbons from a subterranean formation, the method comprising: propagating at least one generally planar inclusion outward from a wellbore into the formation, wherein the inclusion is azimuthally oriented in a preselected direction relative to the wellbore;injecting a fl
1. A method of producing hydrocarbons from a subterranean formation, the method comprising: propagating at least one generally planar inclusion outward from a wellbore into the formation, wherein the inclusion is azimuthally oriented in a preselected direction relative to the wellbore;injecting a fluid into the at least one inclusion via an annulus formed between a casing string and a production string, thereby heating the hydrocarbons; andduring the injecting, flowing the hydrocarbons into the wellbore from the at least one inclusion and producing the hydrocarbons from the wellbore via the production string. 2. The method of claim 1, wherein the hydrocarbons comprise bitumen. 3. The method of claim 1, wherein the flowing further comprises flowing the hydrocarbons into the wellbore at a depth of between approximately 70 meters and approximately 140 meters in the earth. 4. The method of claim 1, wherein the fluid comprises steam. 5. The method of claim 1, wherein the fluid is injected into an upper portion of the at least one inclusion which is above a lower portion of the at least one inclusion from which the hydrocarbons flow into the wellbore. 6. The method of claim 1, wherein the fluid is injected at a varying flow rate while the hydrocarbons are being produced. 7. The method of claim 1, wherein the production string extends to a position in the wellbore which is below the at least one inclusion, and wherein a phase control valve prevents production of the fluid with the hydrocarbons through the production string. 8. The method of claim 1, wherein the propagating is performed without expanding a tool in the wellbore. 9. A method of producing hydrocarbons from a subterranean formation, the method comprising: propagating a plurality of generally planar inclusions outward from a wellbore into the formation at a first depth;injecting a fluid into the inclusions via an annulus formed between a casing string and a production string, thereby heating the hydrocarbons; andduring the injecting, flowing the hydrocarbons into the wellbore from the inclusions and producing the hydrocarbons from the wellbore via the production string. 10. The method of claim 9, wherein the propagating further comprises propagating a plurality of generally planar inclusions into the formation at a second depth, and wherein the flowing further comprises flowing the hydrocarbons into the wellbore from the inclusions at the first and second depths. 11. A well system for producing hydrocarbons from a subterranean formation intersected by a single wellbore, the system comprising: at least one planar inclusion extending outward from the single wellbore into the formation, wherein the inclusion is azimuthally oriented in a preselected direction relative to the wellbore, and wherein the planar inclusion includes at least one selected from the group consisting of curved portions, undulations, tortuosity, indentions, and protrusions;a fluid injected via the single wellbore into an upper portion of the at least one inclusion, the hydrocarbons being heated as a result of the injected fluid; anda tubular string through which the hydrocarbons are produced, the tubular string extending through the single wellbore to a location below the at least one inclusion, wherein during fluid injection the hydrocarbons flow into the single wellbore from a lower portion of the at least one inclusion and then flow to the location below the at least one inclusion. 12. The system of claim 11, wherein the hydrocarbons comprise bitumen. 13. The system of claim 11, wherein the at least one inclusion is positioned at a depth of between approximately 70 meters and approximately 140 meters in the earth. 14. The system of claim 11, wherein the fluid comprises steam. 15. The system of claim 11, further comprising a pulsing tool which varies a flow rate of the fluid. 16. The system of claim 11, wherein a phase control valve prevents production of the fluid with the hydrocarbons through the tubular string. 17. The system of claim 11, wherein the fluid is injected via an annulus formed between the tubular string and the wellbore. 18. The system of claim 11, wherein the fluid is injected via a tubular injection string. 19. The system of claim 11, further comprising a flow control device which provides one-way flow of the hydrocarbons into the tubular string from the location in the wellbore below the at least one inclusion. 20. A well system for producing hydrocarbons from a subterranean formation intersected by a wellbore, the system comprising: a plurality of generally planar inclusions extending outward from the wellbore into the formation at a first depth;a fluid injected into an upper portion of the inclusions, the hydrocarbons being heated as a result of the injected fluid; anda tubular string through which the hydrocarbons are produced, the tubular string extending through the wellbore to a location below the inclusions, wherein during fluid injection the hydrocarbons flow into the wellbore from a lower portion of the inclusions and then flow to the location below the inclusions. 21. The system of claim 20, wherein a plurality of generally planar inclusions extend into the formation at a second depth, and wherein the hydrocarbons flow into the wellbore from the inclusions at the first and second depths. 22. A method of producing hydrocarbons from a subterranean formation, the method comprising: propagating at least one generally planar inclusion outward from a wellbore into the formation, wherein the inclusion is azimuthally oriented in a preselected direction relative to the wellbore;injecting a fluid into the at least one inclusion, thereby heating the hydrocarbons, the injecting including varying a flow rate of the fluid into the at least one inclusion while the fluid is continuously flowed into the at least one inclusion; andduring the injecting, flowing the hydrocarbons into the wellbore from the at least one inclusion. 23. The method of claim 22, wherein the hydrocarbons comprise bitumen. 24. The method of claim 22, wherein the flowing further comprises flowing the hydrocarbons into the wellbore at a depth of between approximately 70 meters and approximately 140 meters in the earth. 25. The method of claim 22, wherein the fluid comprises steam. 26. The method of claim 22, wherein the fluid is injected into an upper portion of the at least one inclusion which is above a lower portion of the at least one inclusion from which the hydrocarbons flow into the wellbore. 27. The method of claim 22, wherein the fluid is injected via a pulsing tool interconnected in an injection string in the well. 28. The method of claim 22, wherein the hydrocarbons are produced through a tubular string extending to a position in the wellbore which is below the at least one inclusion, and wherein a phase control valve prevents production of the fluid with the hydrocarbons through the tubular string. 29. The method of claim 22, wherein the propagating is performed without expanding a casing in the wellbore. 30. A method of producing hydrocarbons from a subterranean formation, the method comprising: propagating a plurality of generally planar inclusions outward from a wellbore into the formation at a first depth;injecting a fluid into the inclusions, thereby heating the hydrocarbons, the injecting including varying a flow rate of the fluid into the inclusions while the fluid is continuously flowed into the inclusions; andduring the injecting, flowing the hydrocarbons into the wellbore from the inclusions. 31. The method of claim 30, wherein the propagating further comprises propagating a plurality of generally planar inclusions into the formation at a second depth, and wherein the flowing further comprises flowing the hydrocarbons into the wellbore from the inclusions at the first and second depths.
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