发明授权
- 专利标题： Method and apparatus for connecting tubulars using a top drive
- 专利标题（中）： 使用顶部驱动器连接管件的方法和装置
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申请号： US10354226申请日： 2003-01-29
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公开(公告)号： US06688398B2公开(公告)日： 2004-02-10
- 发明人: Bernd-Georg Pietras
- 申请人： Bernd-Georg Pietras
- 优先权： GB9818366 19980824
- 主分类号： E21B1906
- IPC分类号： E21B1906
摘要：
An apparatus for facilitating the connection of tubulars, said apparatus comprising a winch (15), at least one wire line (4, 5), and a device (2) for gripping the tubular (3), the arrangement being such that, in use, the winch (15) can be used to winch said at least one wire (4, 5) and said device (2) to position a tubular (3) below said top drive.
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