发明名称 METHOD AND APPARATUS FOR CONNECTING TUBULARS USING A TOP DRIVE
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 a 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.
申请公布号 CA2799485(A1) 申请公布日期 2000.03.02
申请号 CA19992799485 申请日期 1999.08.16
申请人 WEATHERFORD/LAMB, INC. 发明人 PIETRAS, BERND-GEORG
分类号 E21B19/16;E21B19/06 主分类号 E21B19/16
代理机构 代理人
主权项
地址