发明名称 VERFAHREN UND VORRICHTUNG ZUR HANDHABUNG VON BOHRLOCHROHREN
摘要 The present invention provides an apparatus for attachment to pipe handling arm, comprising a clamp for gripping a tubular and a guide for aligning said tubular with another tubular prior to connection thereof, characterized in that said clamp and said guide are movable relative to each other in a direction longitudinal of the tubular, the arrangement being such that said tubular can be brought closer to said another tubular in a direction longitudinal of the tubular.
申请公布号 DE69910543(D1) 申请公布日期 2003.09.25
申请号 DE1999610543 申请日期 1999.02.11
申请人 WEATHERFORD/LAMB INC., WILMINGTON 发明人 LORENZ, GEORG
分类号 E21B19/15;E21B19/20;(IPC1-7):E21B19/20 主分类号 E21B19/15
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