发明名称 APPARATUS AND METHOD FOR FACILITATING THE CONNECTION OF TUBULARS USING A TOP DRIVE
摘要 An apparatus for facilitating the connection of tubulars using a top drive, the apparatus comprising a supporting member (13) for connection with said top drive, a tool (30) for gripping a tubular and means for allowing substantially horizontal movement therebetween, wherein said means comprises a flexible membrane (18) enclosing a fluid.
申请公布号 CA2356471(C) 申请公布日期 2007.01.09
申请号 CA19992356471 申请日期 1999.11.29
申请人 WEATHERFORD/LAMB, INC. 发明人 PIETRAS, BERND-GEORG
分类号 E21B19/16;E21B21/10 主分类号 E21B19/16
代理机构 代理人
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