发明授权
- 专利标题: Setting tool with retractable torque fingers
- 专利标题(中): 可伸缩扭力指针设定工具
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申请号: US761224申请日: 1985-07-31
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公开(公告)号: US4598774A公开(公告)日: 1986-07-08
- 发明人: David L. Nevels , John L. Baugh
- 申请人: David L. Nevels , John L. Baugh
- 申请人地址: TX Houston
- 专利权人: Hughes Tool Company
- 当前专利权人: Hughes Tool Company
- 当前专利权人地址: TX Houston
- 主分类号: E21B23/00
- IPC分类号: E21B23/00 ; E21B23/02 ; E21B23/06 ; E21B43/10
摘要:
A setting tool is shown if the type adapted to be made up in a pipe string for releasably engaging a setting sleeve in a well bore. The setting tool is designed to set a liner hanger using right hand as well as left hand rotation and is released from the setting sleeve using right hand rotation. A plurality of retractable, spring loaded torque fingers carried on a torque collar are used to transmit torque to the setting sleeve but are moved into a retracted position after the setting sleeve is released to avoid damage to the torque fingers. A plurality of splines and a splined ring within the torque collar are used to latch the tool in the running-in position to perform well bore operations, such as hanging a liner. The splines and splined ring have specially mating surfaces which form a key arrangement to facilitate reinsertion of the splines within the splined ring for subsequent operations as the tool is manipulated between the running-in and weight set down positions.
公开/授权文献
- US5845393A Connector assembly tool 公开/授权日:1998-12-08
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