[특허]Downhole tool actuation having a seat with a fluid by-pass

Downhole tool actuation having a seat with a fluid by-pass 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E21B-023/04 E21B-023/00 E21B-041/00 E21B-010/32
출원번호	US-0511209 (2009-07-29)
등록번호	US-9127521 (2015-09-08)
발명자 / 주소	Hall, David R. Dahlgren, Scott
출원인 / 주소	Schlumberger Technology Corporation
대리인 / 주소	Bacoch, John C.
인용정보	피인용 횟수 : 0 인용 특허 : 68

초록 ▼

A downhole tool actuation system has a fluid path defined by a bore formed within a tubular body of a tool. A reciprocating sleeve is located within the bore and the sleeve has a segmented seat with a fluid by-pass. At least one seat segment is positioned by an outer diameter of the sleeve to complete the seat, and a relief is formed in a wall adjacent the outer diameter of the sleeve. When the seat is occupied by an obstruction, only a portion of the fluid path is obstructed and fluid impinging the obstruction causes the sleeve to move in the direction of flow until the at least one segment is relieved by the relief thereby releasing the obstruction.

대표청구항 ▼

1. A downhole tool comprising: a tubular body having a bore formed therein and at least one fluid passage in a wall of the tubular body, the bore defining a fluid path;a reciprocating sleeve configured to translate from a first location to a second location within the bore, the reciprocating sleeve having at least one guide protrusion; anda guided sleeve located within the bore, the guided sleeve being axially constrained, the guided sleeve having at least one guide recess and at least one port, the guide recess configured to receive the at least one guide protrusion and the guided sleeve being substantially coaxial with the reciprocating sleeve, wherein the at least one guide recess is configured to cause the guided sleeve to rotate in a first direction in response to the reciprocating sleeve being translated from the first location to the second location and cause the sleeve to rotate in the first direction in response to the reciprocating sleeve being translated from the second location to the first location, wherein the rotation of the guided sleeve causes the at least one port to align with the at least one fluid passage. 2. The downhole tool of claim 1, wherein the reciprocating sleeve includes an extension between the reciprocating sleeve and the at least one guide protrusion. 3. The downhole tool of claim 1, wherein the at least one guide recess is disposed on an outer surface of the guided sleeve. 4. The downhole tool of claim 1, wherein the reciprocating sleeve is disposed substantially about the guided sleeve. 5. The downhole tool of claim 1, wherein the guide recess comprises a partially helical geometry. 6. The downhole tool of claim 5, wherein the at least one guide protrusion is disposed on an inside surface of the reciprocating sleeve. 7. The downhole tool of claim 1, wherein the at least one port is in communication with the fluid path. 8. The downhole tool of claim 7, wherein the at least one port is in selectable fluid communication with the fluid passages in the tubular body. 9. The downhole tool of claim 8, wherein the guided sleeve has a first indexed position and a second indexed positions, the first indexed position corresponding to the at least one fluid passage and the at least one port being aligned and the second indexed position corresponding to the at least one fluid passage and the at least one port being unaligned. 10. The downhole tool of claim 9, wherein a function of the downhole tool is activated at the first indexed position. 11. The downhole tool of claim 8, wherein the guided sleeve has a plurality of indexed positions alternating between the at least one fluid passage and the at least one port being aligned and the at least one fluid passage and the at least one port being unaligned. 12. The downhole tool of claim 7, wherein an obstruction comprises a hollow sleeve with a spherical ball releasably engaged in the hollow sleeve and the hollow sleeve substantially blocks the fluid ports from communication with the fluid path in the tubular body of the tool. 13. The downhole tool of claim 1, wherein the guided sleeve is rotatable more than one full revolution. 14. The downhole tool of claim 1, wherein the downhole tool comprises a reamer. 15. The downhole tool of claim 1, wherein the reciprocating sleeve and the guided sleeve are lubricated by a fluid flowing in the fluid path. 16. The downhole tool of claim 1, wherein the reciprocating sleeve and the guided sleeve are lubricated by a fluid separated from a fluid flowing in the fluid path. 17. The downhole tool of claim 1, wherein the tool comprises rolling bearings disposed between an outer diameter of the guided sleeve and the bore of the tubular body. 18. The downhole tool of claim 1, wherein the reciprocating sleeve is biased in a direction opposite the direction of a flow of fluid in the fluid path. 19. The downhole tool of claim 1, wherein the reciprocating sleeve is actuated by an obstruction. 20. The downhole tool of claim 1, wherein the guided sleeve comprises pins configured to position the guided sleeve with respect to the tubular body of the tool and shear upon actuation of the guided sleeve by a first obstruction.

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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연합인증

Downhole tool actuation having a seat with a fluid by-pass 원문보기

초록 ▼

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Downhole tool actuation having a seat with a fluid by-pass 원문보기

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연구과제 타임라인

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이 특허에 인용된 특허 (68)

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