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Shifting tool for sliding sleeve valves 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • E21B-034/00
출원번호 US-0017788 (1993-02-16)
발명자 / 주소
  • Collins Leo G. (Lewisville TX)
출원인 / 주소
  • Halliburton Company (Houston TX 02)
인용정보 피인용 횟수 : 78  인용 특허 : 0

초록

A shifting tool for sliding sleeve valves for use in oil and gas wells which has locating dogs that are used for selectively locating and engaging a shoulder inside the valve. Primary keys engage and selectively shift the sliding sleeve to an equalized position as well as prevent premature shifting

대표청구항

A shifting tool for use with a sliding sleeve valve deployed in an oil or gas well, the sliding sleeve valve being characterized by a tubular body, at least one port providing fluid communication through the body, a longitudinally slidable sleeve disposed inside the body for selectively controlling

이 특허를 인용한 특허 (78)

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  34. Themig, Daniel Jon, Fracturing port locator and isolation tool.
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