发明名称 APPARATUS AND METHOD FOR ALIGNING TUBULARS
摘要 An apparatus for aligning tubulars which apparatus comprises at least one guide (11; 115), a tong (2; 102) and a backup unit (3; 103) wherein said at least one guide (11; 115) is arranged on or between said tong (2; 102) and said backup unit (3; 103), characterised in that said at least one guide (11; 115) is, in use, movable towards and away from a box of a tubular with respect to said backup unit. An apparatus for aligning tubulars which apparatus comprises a tong (2), a backup unit (3), at least one torsion post (4, 5) arranged therebetween, the apparatus further comprising at least one guide (11), characterised in that said at least one guide (11) is mounted on said at least one torsion post (4, 5). A method for aligning tubulars using the apparatus of the invention, comprising the step of moving said at least one guide towards and away from a box of a tubular with respect to said backup unit.
申请公布号 WO0061906(A1) 申请公布日期 2000.10.19
申请号 WO2000GB01246 申请日期 2000.03.31
申请人 WEATHERFORD/LAMB, INC.;HARDING, RICHARD, PATRICK;PIETRAS, BERND-GEORG;LIESS, MARTIN 发明人 PIETRAS, BERND-GEORG;LIESS, MARTIN
分类号 E21B19/16;(IPC1-7):E21B19/16 主分类号 E21B19/16
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