发明名称 Subsea well casing tieback connector
摘要 A pipe connector especially useful in tying back to a subsea wellhead with a marine riser. The connector comprises a body or sub, a collar surrounding the sub and carrying anti-rotation keys and a lock ring, and an actuator nut surrounding and threaded to the sub. The anti-rotation keys prevent rotation of the collar and the nut with respect to the receptacle into which the connector is run, and rotation of the sub with respect to the collar and nut locks the connector into the receptacle and establishes a metal-to-metal seal therewith.
申请公布号 US4519633(A) 申请公布日期 1985.05.28
申请号 US19830509127 申请日期 1983.06.29
申请人 FMC CORPORATION 发明人 NICHOLS, RANDY P.
分类号 E21B33/038;E21B33/043;(IPC1-7):F16L37/08 主分类号 E21B33/038
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