发明授权
US07665531B2 Apparatus for facilitating the connection of tubulars using a top drive
有权
用于促进使用顶部驱动器连接管的装置
- 专利标题： Apparatus for facilitating the connection of tubulars using a top drive
- 专利标题（中）： 用于促进使用顶部驱动器连接管的装置
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申请号： US11600314申请日： 2006-11-15
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公开(公告)号： US07665531B2公开(公告)日： 2010-02-23
- 发明人: Bernd-Georg Pietras
- 申请人： Bernd-Georg Pietras
- 申请人地址： US TX Houston
- 专利权人： Weatherford/Lamb, Inc.
- 当前专利权人： Weatherford/Lamb, Inc.
- 当前专利权人地址： US TX Houston
- 代理机构： Patterson & Sheridan, LLP
- 优先权： GB9815809.0 19980722; GB9818358.5 19980824
- 主分类号： E21B31/20
- IPC分类号： E21B31/20 ; E21B19/18 ; B66C1/42
摘要：
A method and apparatus for facilitating the connection of tubulars using a top drive which, in one aspect, the apparatus includes a body connectable to said top drive. The body includes at least one gripping element radially displaceable by hydraulic or pneumatic fluid to drivingly engage a tubular to permit a screw connection between said tubular and a further tubular to be tightened to the required torque.
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