[특허]Retrievable straddle packer

[미국특허] Retrievable straddle packer 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E21B-033/124 E21B-033/129
출원번호	US-0716019 (1985-03-26)
발명자 / 주소	Evans Robert T. (Duncan OK)
출원인 / 주소	Halliburton Company (Duncan OK 02)
인용정보	피인용 횟수 : 146 인용 특허 : 1

초록

An improved retrievable compression set straddle packer assembly for use in oil and gas wells. The straddle packer assembly comprises an hydraulic slip assembly, an injection mandrel assembly, a packer assembly, a mechanical slip assembly, a drag block assembly, and a bypass assembly.

대표청구항 ▼

A retrievable straddle packer for use in wells, comprising: an hydraulic slip assembly; a tubular injection mandrel assembly secured to said hydraulic slip assembly and extending downward therefrom, said mandrel assembly having a plurality of injection ports extending through the wall thereof and a plurality of bypass slots extending through the wall thereof below said injection ports; upper packer element means disposed on said mandrel assembly adjacent to said hydraulic slip assembly; injection spacer means disposed on said mandrel assembly adjacent to and below said upper element means, said injection spacer means including upper and lower packer compression rings separated by a plurality of longitudinal struts defining a plurality of apertures therebetween; lower packer element means disposed on said mandrel assembly adjacent to and below said injection spacer means; a slip body disposed on and splined to said mandrel assembly below said lower packer element means; a plurality of slips disposed on said mandrel assembly, the upper ends of said slips being longitudinally slidably secured to said slip body and the lower ends of said slips being radially slidably secured to a split ring collar assembly therebelow surrounding said mandrel assembly; a drag block assembly disposed on said mandrel assembly below said split ring collar assembly and secured thereto; J-slot means comprising lug means associated with one of said mandrel assembly and said drag block means, and a cooperating J-slot associated with the other of said mandrel assembly and said drag block means; and a bypass assembly disposed on said mandrel assembly below said drag block means and secured thereto, said bypass assembly including bypass ports through the wall thereof adapted to communicate with said bypass slots of said mandrel assembly when aligned therewith.

이 특허에 인용된 특허 (1) 인용/피인용 타임라인 분석

Weitz Robert D. (Houma LA), Well washing tool and method.
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이 특허를 인용한 특허 (146) 인용/피인용 타임라인 분석

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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
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
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] Retrievable straddle packer 원문보기

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[미국특허] Retrievable straddle packer 원문보기

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연구과제 타임라인

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이 특허에 인용된 특허 (1) 인용/피인용 타임라인 분석

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