发明名称 |
Hydraulic operated casing hanger running tool |
摘要 |
A well tool for running and landing underwater casing hangers. The tool includes a resilient split ring with external threads that engage complementary internal threads on the hanger, and an hydraulic system that is actuated through a control line at the surface, thereby facilitating release of the hanger from the tool by either hydraulic pressure or rotation of the running string to which the tool is attached.
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申请公布号 |
US4067388(A) |
申请公布日期 |
1978.01.10 |
申请号 |
US19770783993 |
申请日期 |
1977.04.04 |
申请人 |
FMC CORPORATION |
发明人 |
MOURET, EDMUND M.;GARRETT, MICHAEL R. |
分类号 |
E21B23/04;E21B33/043;(IPC1-7):E21B43/10 |
主分类号 |
E21B23/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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