发明名称 |
Fremgangsmåte og anordning for boring med foringsrør |
摘要 |
<p>A top drive system includes a top drive, top drive adapter, and a tubular positioning apparatus. In another aspect, the top drive adapter includes a housing operatively connected to the top drive and a plurality of retaining members disposed in the housing for gripping the tubular. In another aspect, the tubular positioning apparatus includes a gripping member for engaging a tubular and a conveying member for positioning the gripping member. A spinner may be provided to rotate the tubular.</p> |
申请公布号 |
NO335929(B1) |
申请公布日期 |
2015.03.23 |
申请号 |
NO20050004550 |
申请日期 |
2005.10.04 |
申请人 |
WEATHERFORD TECHNOLOGY HOLDINGS, LLC |
发明人 |
PIETRAS BERND-GEORG;REINHOLDT BERND;HOLLINGSWORTH JIMMY LAWRENCE;HABETZ JEFFREY MICHAEL;SHAHIN DAVID OTHMAN;HAUGEN DAVID MICHAEL;THOMPSON GARY |
分类号 |
E21B19/07;E21B;E21B3/02;E21B7/20;E21B19/06;E21B19/14;E21B19/16 |
主分类号 |
E21B19/07 |
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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