发明名称 |
Apparatus for facilitating the connection of tubulars using a top drive |
摘要 |
A method and apparatus for facilitating the connection of tubulars using a top drive is provided. In one aspect, a body is connectable to said top drive. The body comprises at least one gripping element radially displaceable by hydraulic or pneumatic fluid to drivingly engage a tubular to permit a screw connection between said tubular and a further tubular to be tightened to the required torque.
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申请公布号 |
US2005051343(A1) |
申请公布日期 |
2005.03.10 |
申请号 |
US20040967387 |
申请日期 |
2004.10.18 |
申请人 |
WEATHERFORD/LAMB, INC. |
发明人 |
PIETRAS BERND-GEORG;APPLETON ROBERT PATRICK |
分类号 |
E21B;E21B19/06;E21B19/16;E21B23/04;E21B31/03;E21B33/126;E21B43/10;(IPC1-7):E21B19/22;E21B34/02 |
主分类号 |
E21B |
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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