Method and apparatus for selective down hole fluid communication
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E21B-029/00
출원번호
US-0033846
(2013-09-23)
등록번호
US-8684084
(2014-04-01)
발명자
/ 주소
Wesson, David S.
George, Kevin R.
Snider, Philip M.
출원인 / 주소
GEODynamics, Inc.
대리인 / 주소
Whitaker Chalk Swindle & Schwartz PLLC
인용정보
피인용 횟수 :
4인용 특허 :
56
초록▼
Methods and apparatus for perforating a formation in a wellbore without perforating a well bore casing. The methods and apparatus include an external casing perforating device configured so as not to perforate the casing. The interior of the perforating device serves as a fluid flow path between the
Methods and apparatus for perforating a formation in a wellbore without perforating a well bore casing. The methods and apparatus include an external casing perforating device configured so as not to perforate the casing. The interior of the perforating device serves as a fluid flow path between the casing and the formation following perforation and a valve in the casing selectively opens and closes the flow path.
대표청구항▼
1. An apparatus for penetrating a formation and selectively establishing fluid communication with the formation, comprising: a casing having at least one aperture through a wall thereof and comprising a valve member positioned interior of the casing and having a first position wherein the aperture i
1. An apparatus for penetrating a formation and selectively establishing fluid communication with the formation, comprising: a casing having at least one aperture through a wall thereof and comprising a valve member positioned interior of the casing and having a first position wherein the aperture is obstructed and a second position wherein the aperture is open; andat least one energetic device positioned exterior of the casing and configured to penetrate a formation surrounding the casing without penetrating the casing. 2. The apparatus of claim 1, wherein the valve member comprises a sliding sleeve. 3. The apparatus of claim 1, further comprising a fluid flow path between an interior of the energetic device and the aperture. 4. The apparatus of claim 3, further comprising a connector sealing contact between the energetic device and an exterior of the casing, the connector including at least a portion of the flow path. 5. The apparatus of claim 1, wherein the energetic device comprises a perforating gun. 6. The apparatus of claim 5, further comprising explosive perforating charges orientated to aim away from the casing. 7. The apparatus of claim 1, wherein the energetic device includes a fluid flow path there through following a perforating, by the energetic device, of the formation surrounding the casing. 8. The apparatus of claim 6, wherein the energetic device comprises a manifold. 9. The apparatus of claim 7, further comprising at least one connector surrounding an exterior of the casing and the at least one aperture and having at least a portion of the flow path there through. 10. The apparatus of claim 5, wherein the perforating gun comprises a conduit. 11. The apparatus of claim 6, further comprising a perforating charge support structure wherein the perforating charges and the support structure are disintegratable upon a functioning of the perforating gun. 12. The apparatus of claim 1, wherein the casing and the energetic device are connected as an assembly prior to lowering into a well bore. 13. A method for selectively establishing fluid communication between an interior of a casing and a formation of interest, comprising: penetrating the formation of interest while not perforating the casing, using an energetic device; andopening a fluid flow path between the formation of interest and an interior of the casing through an annulus between the formation and the casing. 14. The method of claim 13, wherein the penetrating comprises perforating with a perforating gun. 15. The method of claim 13, wherein the penetrating comprises penetrating the annulus. 16. The method of claim 13, wherein the opening comprises opening a valve. 17. The method of claim 16, wherein the valve comprises a sliding sleeve. 18. The method of claim 13, wherein the opening comprises fracturing the formation. 19. The method of claim 13, wherein the opening comprises fracturing the formation by fluid pressure initiated by the energetic device. 20. The method of claim 13, further comprising flowing a fluid through the fluid flow path. 21. The method of claim 20, further comprising flowing a fluid through the energetic device. 22. The method of claim 20, wherein flowing the fluid comprises flowing a treatment fluid from the interior of the casing to the formation of interest. 23. The method of claim 13, further comprising pumping treatment fluid under pressure into the formation of interest through the fluid flow path. 24. The method of claim 13, further comprising closing the fluid flow path. 25. The method of claim 14, further comprising disintegrating an interior structure of the perforating gun. 26. The method of claim 13, further comprising lowering the casing and the energetic device as an integrated assembly into a well bore. 27. A method for selectively establishing fluid communication between an interior of a casing and a formation of interest, comprising: penetrating the formation of interest while not perforating the casing, using an energetic device; andopening a fluid flow path between the formation of interest and the casing using a fluid pressure generator. 28. The method of claim 27, wherein opening further comprises opening the fluid flow path to the interior of the casing by opening a valve. 29. The method of claim 28, wherein the valve comprises a sliding device. 30. The method of claim 27, wherein opening comprises fracturing the formation of interest. 31. The method of claim 27, wherein opening comprises fracturing an annulus between the formation of interest and the casing. 32. The method of claim 27, further comprising pumping treatment fluid under pressure into the formation of interest through the fluid flow path.
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