发明名称 Tubing hanger assembly and method of landing and locking
摘要 A tubing hanger assembly adapted to carry a tubing string suspended therefrom and to be connected to a landing tool for lowering of the tubing hanger assembly and tubing string into a well casing means, and landing said tubing hanger assembly on said casing means and simultaneously locking said assembly to said casing means without relative rotation of said landing tool and tubing hanger assembly. A tubing hanger assembly adapted to be releasably connected to a landing tool under conditions where the weight of the landing string is imposed upon the tubing hanger assembly whereby the connection between the landing tool and the tubing hanger assembly is releasable by relative rotation of the landing tool with respect to the tubing hanger assembly in one direction only.
申请公布号 US4171018(A) 申请公布日期 1979.10.16
申请号 US19780887956 申请日期 1978.03.20
申请人 DEEP OIL TECH INC 发明人 WALKER, RAYMOND W
分类号 E21B23/02;E21B43/10;(IPC1-7):E21B23/02 主分类号 E21B23/02
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