发明名称 |
Method and apparatus for installing a control valve assembly on an underwater well head |
摘要 |
A method of installing a valve-bearing assembly on an underwater oil well head and for checking the sealing-tightness of the pipes connected thereto, in a single operation without the use of a diver, comprises coupling the assembly to a tool connected to riser of a surface support and which includes means for connection and checking of the assembly controlled from the surface support.
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申请公布号 |
US4046192(A) |
申请公布日期 |
1977.09.06 |
申请号 |
US19760695718 |
申请日期 |
1976.06.14 |
申请人 |
SEAL PETROLEUM LIMITED |
发明人 |
DARNBOROUGH, ERIC;COULBOY, RENE HENRI |
分类号 |
E21B33/035;E21B33/038;H01R13/527;(IPC1-7):E21B33/03 |
主分类号 |
E21B33/035 |
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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