Gripper Blocks 1


Gripper Blocks 1 : (n). Well Workover and Intervention. The profiled blocks attached to the drive chains of a coiled tubing injector head. The gripper blocks are arranged in opposing pairs to secure the coiled tubing string in the injector-head chains. As the hydraulic drive system rotates the chains, the gripper blocks feed the tubing string into, or out of the well. See: coiled tubing, coiled tubing string, injector head
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