发明名称 |
METHOD AND APPARATUS FOR DRILLING WITH CASING |
摘要 |
Methods and apparatus for drilling with a top drive system are provided. In one aspect, the present invention provides for a top drive system having includes a top drive, top drive adapter, and a tubular positioning apparatus. In one another aspect, the system includes a telescopic link system connected to a lower portion of the top drive adapter to move the casing string into engagement with the top drive adapter. 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.
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申请公布号 |
US2007169930(A1) |
申请公布日期 |
2007.07.26 |
申请号 |
US20060563534 |
申请日期 |
2006.11.27 |
申请人 |
SHAHIN DAVID;HABETZ JEFF;HAUGEN DAVID M;THOMPSON GARY;PIETRAS BERND-GEORG;HOLLINGSWORTH JIMMY L;REINHOLDT BERND |
发明人 |
SHAHIN DAVID;HABETZ JEFF;HAUGEN DAVID M.;THOMPSON GARY;PIETRAS BERND-GEORG;HOLLINGSWORTH JIMMY L.;REINHOLDT BERND |
分类号 |
E21B19/18;E21B;E21B3/02;E21B7/20;E21B19/06;E21B19/07;E21B19/14;E21B19/16 |
主分类号 |
E21B19/18 |
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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