[특허]Mechanical shut-off valve

[미국특허] Mechanical shut-off valve 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E21B-043/117
출원번호	US-0089842 (1998-06-03)
발명자 / 주소	Edwards A. Glen Huber Klaus B. van Petegm Charles,NLX Babineau James W.
출원인 / 주소	Schlumberger Technology Corporation
대리인 / 주소	Trop, Pruner & Hu, P.C.
인용정보	피인용 횟수 : 17 인용 특허 : 9

초록 ▼

A shut-off valve is disclosed for use in a downhole string of tools in a well. The valve has a housing adapted to be connected between adjacent tools of the string, defining a bore and a passage for hydraulic communication between the adjacent tools. The passage is arranged to intersect the bore, and a piston is slidably disposed within the bore and arranged to block hydraulic communication between the passage and the piston bore. The piston is further arranged to, in a first position, permit hydraulic communication along the passage, and to, in a second position, block hydraulic communication along the passage. The piston also has a bore for ballistic communication between the adjacent tools, such that it can be employed between a firing head and a gun, for instance. Some embodiments also permit circulation flow from the tubing to the well bore after the valve has closed. Methods of use and tool strings containing such valves are also disclosed.

대표청구항 ▼

[ What is claimed is:] [1.] A shut-off valve for use in a downhole string of tools in a well, the valve comprisinga housing having two ends adapted to be connected to adjacent tools of the string, the housing defining therethrougha bore between the two ends, anda passage for hydraulic communication between the two ends, the passage intersecting the bore; anda piston slidably disposed within the bore and defining therethrough a bore for ballistic communication between the two housing ends, the piston arranged to block hydraulic communication between the passage and the piston bore,the piston further arranged to, in a first position, permit hydraulic communication along the passage, and to, in a second position, block hydraulic communication along the passage.

이 특허에 인용된 특허 (9) 인용/피인용 타임라인 분석

Hopper Hans P. (Aberdeen GB6), Annulus safety valve.
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Hromas Joe C. (Sugar Land TX) Miszewski Antoni K. L. (Missouri City TX) Huber Klaus B. (Sugar Land TX), Automatic tubing release.
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Edwards A. Glen (Hockley TX) Hromas Joe C. (Sugar Land TX) Huber Klaus B. (Sugar Land TX), Explosively opened production valve including a frangible breakup element operated by tubing pressure or rathole pressur.
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Pringle Ronald E. (Houston TX) Morris Arthur J. (Magnolia TX), Liquid level actuated sleeve valve.
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Huber Klaus B. (Sugarland TX) Hromas Joe C. (Sugarland TX) Edwards A. Glen (Hockley TX), Method and apparatus for anchoring a perforating gun to a casing in a wellbore including a primary and a secondary ancho.
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George Flint R. (Katy TX) George Kevin R. (Columbus TX), Method and apparatus for perforating well bores using differential pressure.
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Huber Klaus B. (Sugarland TX) Hromas Joe C. (Sugarland TX), Method of perforating including an automatic release apparatus suspending by wireline or coiled tubing in a wellbore for.
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Dillon David B. (Aliso Viejo CA) O\Mara David (Canyon Country CA), Perforation trigger bypass assembly and method.
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Edwards A. Glen (Hockley TX) Hromas Joe C. (Sugarland TX) Huber Klaus B. (Sugarland TX) Smith ; Jr. Edward G. (San Leon TX), Shock absorber for use in a wellbore including a frangible breakup element preventing shock absorption before shattering.
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이 특허를 인용한 특허 (17) 인용/피인용 타임라인 분석

Connell, Michael L.; Farkas, Robert J., Abrasive perforator with fluid bypass.
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Dotson, Thomas L.; Tucker, Barrett, Apparatus and method for isolating flow in a downhole tool assembly.
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Shahinpour, Arash; Müller, Jörg; Mulhern, Eric; Preiss, Frank Haron, Ballistic transfer module.
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Bell, Matthew Robert George; Murphy, Eugene; Cernocky, Edward Paul; Burres, Christopher; Ekelund, Aron; Lindfors, Allen, Casing conveyed well perforating apparatus and method.
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Bell,Matthew Robert George; Burres,Christopher; Ekelund,Aron, Casing conveyed well perforating apparatus and method.
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Bell,Matthew Robert George; Murphy,Eugene; Cernocky,Edward Paul; Burres,Christopher; Ekelund,Aron; Lindfors,Allen, Casing conveyed well perforating apparatus and method.
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Bell,Matthew Robert George; Murphy,Eugene; Cernocky,Edward Paul; Burres,Christopher; Ekelund,Aron; Lindfors,Allen, Casing conveyed well perforating apparatus and method.
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Broad, Ross, Hydraulic firing head.
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Watson, Brock W.; Schultz, Roger L., Limited depth abrasive jet cutter.
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Shahinpour, Arash; Mueller, Joerg; Mulhern, Eric; Preiss, Frank Haron, Method of initiating a percussion initiator.
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Ferguson, Andrew M.; Loving, Stanley W.; McKinley, Bryan F.; Norman, Dale, Methods and devices for one trip plugging and perforating of oil and gas wells.
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Ferguson, Andrew M.; Loving, Stanley W.; McKinley, Bryan F.; Norman, Dale, Methods and devices for one trip plugging and perforating of oil and gas wells.
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Ferguson, Andrew M.; Loving, Stanley W.; McKinley, Bryan F.; Norman, Dale, Methods and devices for one trip plugging and perforating of oil and gas wells.
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Ferguson, Andrew M.; Loving, Stanley Wayne; McKinley, Bryan Franklin; Norman, Dale, Methods and devices for one trip plugging and perforating of oil and gas wells.
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Bell, Matthew Robert George; Murphy, Eugene; Cernocky, Edward Paul; Burres, Christopher; Ekelund, Aron; Lindfors, Allen, Perforating apparatus, firing assembly, and method.
상세보기
Bell,Matthew Robert George; Murphy,Eugene; Cernocky,Edward Paul; Burres,Christopher; Ekelund,Aron; Lindfors,Allen, Perforating apparatus, firing assembly, and method.
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Dotson, Thomas L., Pressure actuated flow control in an abrasive jet perforating tool.
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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

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[미국특허] Mechanical shut-off valve 원문보기