发明名称 WELLHEAD HANGER AND SEAL
摘要 An improved subsea hanger and seal having a hanger body with an external landing shoulder and an upstanding sealing rim with external sealing teeth and multiple internal camming surfaces and an actuating ring which fits within the sealing rim and includes external multiple camming surfaces mating with the camming surfaces on the interior of the sealing rim to move said sealing rim into initial set position and allow subsequent pressure to be applied to the interior of the actuating ring to deform the sealing rim into positive gripping and sealing engagement with the interior of the subsea wellhead housing in which the hanger is landed.
申请公布号 CA1291705(C) 申请公布日期 1991.11.05
申请号 CA19880556288 申请日期 1988.01.12
申请人 CAMERON IRON WORKS USA, INC. 发明人 TAYLOR, WILLIAM M.
分类号 E21B33/00;E21B33/043 主分类号 E21B33/00
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