Drill pipe handling mechanism

Details Drill pipe handling mechanism Drill pipe handling mechanism

E - Fixed Constructions

21

B

255/14.6

E21B 19/14 (2006.01) E21B 19/20 (2006.01)

Patent

CA 1071183

DRILL PIPE HANDLING MECHANISM ABSTRACT OF THE DISCLOSURE A drill pipe handling mechanism for a drilling rig includes spaced apart upper and lower arms mounted on a shaft which is mounted for pivotal and limited axial movement with respect to an axis which is spaced from and parallel to the drilling axis. The lower arm includes a receptacle for the lower end of a drill pipe section. The upper arm includes a drill pipe holder having a power actuated movable gate section. A drill pipe retainer is pivotally mounted on the shaft above the pipe holder and is operated by a separate power actuator. Opposed power actuated pipe gripping and holding wrenches are disposed on the lower part of the rig mast for gripping and holding a drill pipe section while threaded joints are broken loose by a rotary head connected to the upper end of the drill string. A power actuated wrench is mounted for pivotal movement into pipe gripping position for breaking loose threaded joints which cannot be loosened by the rotary head.

298502

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