发明授权
- 专利标题： Methods and apparatus for manipulating and driving casing
- 专利标题（中）： 操纵和驱动套管的方法和装置
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申请号： US13360424申请日： 2012-01-27
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公开(公告)号： US08371387B2公开(公告)日： 2013-02-12
- 发明人: Steven G. Blair , Brent J. Fendley , Adam Richard Williams , John G. Evans
- 申请人： Steven G. Blair , Brent J. Fendley , Adam Richard Williams , John G. Evans
- 申请人地址： US TX Houston
- 专利权人： Baker Hughes Incorporated
- 当前专利权人： Baker Hughes Incorporated
- 当前专利权人地址： US TX Houston
- 代理商 Steve Rosenblatt
- 主分类号： E21B19/00
- IPC分类号： E21B19/00 ; E21B19/16 ; E21B19/18
摘要：
An apparatus and methods for manipulating and driving casing. The apparatus includes mechanically responsive elements for gripping an interior of a casing joint, and hydraulically responsive elements for gripping an interior of the casing joint responsive to pressure of drilling fluid flowing through the apparatus. One method comprises manipulating a casing joint by mechanically gripping an interior thereof, hydraulically gripping the interior of the casing joint responsive to drilling fluid pressure, and rotating the casing joint. Another method comprises driving casing by applying weight and torque thereto through engagement with an interior thereof.
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