发明名称 Apparatus and methods for wedge lock prevention
摘要 In one embodiment, a tubular handling apparatus (600) is provided with a wedge lock release mechanism (620) that creates a clearance to allow movement by the mandrel (610) having mating wedge surfaces relative to the tubular (601) to release the wedge slips (255). In another embodiment, a tubular handling apparatus for handling a tubular includes a mandrel (610); a carrier (650) coupled to the mandrel; a gripping element (255) for engaging the tubular; an engagement member (624) coupled to the carrier for engaging an upper portion of the tubular; and an abutment device adapted to engage the engagement member, wherein a length of the abutment device is adjustable to allow movement of the engagement member.
申请公布号 EP2584138(A2) 申请公布日期 2013.04.24
申请号 EP20120196878 申请日期 2009.05.04
申请人 WEATHERFORD/LAMB INC. 发明人 LIESS, MARTIN
分类号 E21B19/06;E21B3/02;E21B19/16;E21B23/00 主分类号 E21B19/06
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