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특허 상세정보

MyON담기
내보내기 페이스북 공유 카카오톡 공유

Eccentric safety valve

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) E21B-017/02    E21B-034/06    E21B-034/00   
미국특허분류(USC) 166/066.5;
출원번호 US-0033244 (2013-09-20)
등록번호 US-8869881 (2014-10-28)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Smith IP Services, P.C.
인용정보 피인용 횟수 : 0  인용 특허 : 62
초록
▼

A safety valve for use in a subterranean well can include a housing assembly having a flow passage extending longitudinally through the housing assembly. An outer diameter of the housing assembly is eccentric relative to the flow passage. A well tool can include a magnetic coupling between magnet devices. One magnet device includes a series of magnets which are unequally spaced circumferentially about the other magnet device. Another safety valve can include a longitudinally extending flow passage, a closure device which selectively permits and prevents ...

대표
청구항
▼

1. A well tool, comprising: a magnetic coupling between first and second magnet devices, wherein the second magnet device includes a series of magnets which are unequally spaced circumferentially about the first magnet device, wherein a first circumferential spacing between the magnets is less than a second circumferential spacing between the magnets, wherein the second magnet device is disposed within a wall of a pressure bearing housing, and wherein at least one line is positioned in the second circumferential spacing between the magnets. 2. A well too...

이 특허에 인용된 특허 (62)

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