Boring or penetrating the earth – Processes
Patent
1988-01-07
1988-12-20
Novosad, Stephen J.
Boring or penetrating the earth
Processes
166 775, 175 85, 175423, 414 2251, E21B 1906, E21B 1916
Patent
active
047919973
ABSTRACT:
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.
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Bradley James E.
Novosad Stephen J.
Vetco Gray Inc.
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