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특허 상세정보

Electrically operated safety release joint

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) E21B-017/06   
미국특허분류(USC) 166/664 ; 166/651 ; 166/242 ; 166/377
출원번호 US-0953404 (1992-09-29)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 72  인용 특허 : 0
초록

A method and apparatus of electrically and sequentially completing an oil and/or gas well through a tubing production string in a well casing. The operation includes electrically and sequentially actuating downhole equipment such as well packers, a safety joint, well annulus safety valve, solenoid actuated tubing safety valve, blanking block valve, circulating sleeve, and receiving electrical feedback from the equipment determining the position of the downhole equipment.

대표
청구항

A linear operated safety release joint for use in a well for initially supporting a production string comprising, a housing having a bore therethrough, said housing including first and second parts, one of said parts including locking dogs, and the other part including a recess for receiving said dogs for initially locking said parts together for supporting a production string, a sleeve slidable in the housing and initially holding the dogs in said recess, an electrical motor carried by the housing and connected to the sleeve for moving the sleeve away f...

이 특허를 인용한 특허 피인용횟수: 72

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