发明名称 APPARATUS AND METHODS FOR WEDGE LOCK PREVENTION
摘要 In one embodiment, a tubular handling apparatus is provided with a wedge lock release mechanism that creates a clearance to allow movement by the mandrel having mating wedge surfaces relative to the tubular to release the wedge slips. In another embodiment, a tubular handling apparatus for handling a tubular includes a mandrel; a carrier coupled to the mandrel; a gripping element for engaging the tubular; an engagement member 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 CA2722543(A1) 申请公布日期 2009.11.05
申请号 CA20092722543 申请日期 2009.05.04
申请人 WEATHERFORD/LAMB, INC. 发明人 LIESS, MARTIN
分类号 E21B17/03 主分类号 E21B17/03
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