发明申请
- 专利标题: METHODS AND APPARATUS FOR APPLYING TORQUE AND ROTATION TO CONNECTIONS
- 专利标题(中): 应用扭矩和旋转连接的方法和装置
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申请号: US11930287申请日: 2007-10-31
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公开(公告)号: US20080047749A1公开(公告)日: 2008-02-28
- 发明人: Thomas Koithan , Graham Ruark , John Newman , David Haugen , David Shahin
- 申请人: Thomas Koithan , Graham Ruark , John Newman , David Haugen , David Shahin
- 主分类号: E21B7/00
- IPC分类号: E21B7/00
摘要:
A method and apparatus for connecting threaded members while ensuring that a proper connection is made. In one embodiment, the applied torque and/or rotation are measured at regular intervals throughout a pipe connection makeup. When a shoulder contact is detected, a predetermined torque value and/or rotation value is added to the measured torque and/or rotation values, respectively, at shoulder contact and rotation continued until this calculated value(s) is reached.
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