[특허]Liner seal and method of use

[미국특허] Liner seal and method of use 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E21B-043/10
출원번호	US-0820764 (1986-01-16)
발명자 / 주소	Brisco David P. (Duncan OK) Bolin Michael L. (Knoxville TN)
출원인 / 주소	Halliburton Company (Duncan OK 02)
인용정보	피인용 횟수 : 106 인용 특허 : 7

초록 ▼

A liner seal for use in a tool string for sealing above a gravel pack around a liner screen. The liner seal is originally positioned in the tool string between the liner screen and a release mechanism. The release mechanism is a pressure actuated, non-rotational type having collets engaged with a portion of the liner seal. Gravel is packed around the liner screen, and the release mechanism is actuated. Setting weight on an outer sleeve of the liner seal downwardly moves the outer sleeve with respect to an inner sleeve attached to the liner screen. This relatively converging movement of the outer and inner sleeves radially outwardly displaces a seal member into sealing engagement with the well bore. A shear pin is included so that a predetermined load is required for downwardly moving the outer sleeve. A slip is provided to prevent upward movement of the outer sleeve, thus preventing disengagement of the seal member with the well bore. The liner seal sealingly encloses an upper end of an annular volume around the liner screen, and prevents upward migration of a gravel pack in the annular volume. After the liner seal is released and set, the tool string may be removed from the hole. An additional trip for setting a separate liner seal is eliminated.

대표청구항 ▼

A liner seal and screen apparatus positionable in a well bore, said apparatus comprising: a gravel screen portion; and a liner seal portion above said gravel screen portion comprising: outer sleeve means; inner sleeve means extending from said outer sleeve means, one of said outer and inner sleeve means being attached to said gravel screen portion, said outer and inner sleeve means being relatively slidable from a normally extended position to a relatively converged position; annular sleeve means having a first end engaged with said outer sleeve means and a second end engaged with said inner sleeve means, said seal means being radially outwardly displaced into sealing engagement with said well bore when said outer and inner sleeve means are in said relatively converged position; a tool string portion above said liner seal portion; and releasing means for releasably connecting said line screen portion with said tool string portion comprising: collet receiving means defined on one of said outer and inner sleeve means of said liner seal portion; collet means on said tool string portion, at least a portion of said collet means being positionable adjacent said collet receiving means; and mandrel means for biasing said collet means into engagement with said collet receiving means when in a connecting position and releasing said collet means from said engagement when in a releasing position.

이 특허에 인용된 특허 (7) 인용/피인용 타임라인 분석

Salerni, John V.; Zachman, James R., Combination gravel packing device and method.
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Callihan Rudy B. (Houston TX) Meyer Jerry W. (Houston TX) Wainwright ; Jr. Clyde S. (Bellaire TX) Taylor Bobby B. (Houston TX), Gravel packing apparatus and method.
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Zunkel Gary D. (Chickasha OK) Stepp Lee W. (Commanche OK), Hydraulically activated liner setting device.
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Baker Eugene E. (Duncan OK) Szarka David D. (Duncan OK), Isolation gravel packer.
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Stepp Lee W. (Comanche OK), Method and apparatus for gravel packing a zone in a well.
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Baker Eugene E. (Duncan OK) Szarka David D. (Duncan OK) Davis Odie R. S. (Humble TX) Workman Nolan M. (Lewisville TX), Method and apparatus for gravel packing multiple zones.
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Hendrickson James D. (Carrollton TX) White Pat M. (Lewisville TX) Davis Odie R. S. (Humble TX) Workman Nolan M. (Lewisville TX) Baker Eugene E. (Duncan OK) Szarka David D. (Duncan OK), Method and apparatus for gravel packing multiple zones.
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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)
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저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
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안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

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[미국특허] Liner seal and method of use 원문보기

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[미국특허] Liner seal and method of use 원문보기

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전체(0) 논문(0) 특허(0) 보고서(0)

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이 특허에 인용된 특허 (7) 인용/피인용 타임라인 분석

이 특허를 인용한 특허 (106) 인용/피인용 타임라인 분석

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