发明名称 |
TOP DRIVE SYSTEM |
摘要 |
In one, embodiment, a top drive system (200) includes a quill (214); a motor (201) operable to rotate the quill; a gripper (275) operable to engage a joint of casing; a connector (300) bi-directionally rotationally coupled to the quill and the gripper and longitudinally coupled to the gripper; and a compensator longitudinally coupled to the quill and the connector. The compensator is operable to allow relative longitudinal movement between the connector and- the quill. |
申请公布号 |
CA2707050(A1) |
申请公布日期 |
2009.06.18 |
申请号 |
CA20082707050 |
申请日期 |
2008.12.12 |
申请人 |
WEATHERFORD/LAMB, INC. |
发明人 |
HEIDECKE, KARSTEN;RIALS, ROSS;FISHER, RALEIGH;OLSTAD, DELANEY MICHAEL |
分类号 |
E21B3/02;E21B19/00;E21B19/16 |
主分类号 |
E21B3/02 |
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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