发明名称 Pipe handling apparatus and method
摘要 A pipe handling apparatus for a drilling rig is mounted on the rig floor. The drilling rig has a top drive with a power drive stem. Elevators are suspended below the drive stem. The lifting member has a supporting arm to receive the bottom of a stand of drill pipe lifted by the elevators. A stabilizing arm is mounted to the lifting member above the supporting arm to stabilize the stand. The lifting member telescopes upward to slide the stand of drill pipe upward through the elevators and into engagement with the drive stem.
申请公布号 US4791997(A) 申请公布日期 1988.12.20
申请号 US19880142105 申请日期 1988.01.07
申请人 VETCO GRAY INC. 发明人 KRASNOV, IGOR
分类号 E21B19/20;(IPC1-7):E21B19/06;E21B19/16 主分类号 E21B19/20
代理机构 代理人
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