发明名称 |
PETROLEUM WELL INTERVENTION WINCH SYSTEM |
摘要 |
A petroleum well intervention winch system includes a high pressure confining housing for a drum for a rope to a tool string. The pressure confining housing has a connector with an aperture for the rope to a top of a tool string gate chamber on vertical bore BOP valves on a wellhead on the petroleum well. The rope runs through the aperture via a capstan to the drum. The capstan is driven by a first motor through a first high pressure proof magnetic coupling across a wall of the housing. The drum is driven by a second motor through a second high pressure proof magnetic coupling across the wall of the housing. The capstan is subject to a load tension from the rope and is provided with a hold tension on the rope from the drum. The second motor exerts a constant hold tension on the rope via the drum. |
申请公布号 |
EP2761123(A2) |
申请公布日期 |
2014.08.06 |
申请号 |
EP20120773132 |
申请日期 |
2012.09.10 |
申请人 |
CAPWELL AS |
发明人 |
TALGØ, MORTEN;HELVIK, JOHN |
分类号 |
E21B33/037;B66D1/00;E21B19/00;E21B33/076;E21B41/00;E21B41/06;E21B47/12 |
主分类号 |
E21B33/037 |
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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