GRIPPER ASSEMBLY AND LOCK/RELEASE METHOD FOR A COILED TUBING INJECTOR

摘要

A gripper assembly for a coiled tubing injector, each assembly of a plurality of assemblies having a carrier adapted for mounting to the injector drive and a gripper block releasably connected to the carrier using a locking mechanism. In an embodiment a locking tab extending from one of the gripper block and carrier engages a slot of the other of the carrier or block. A locking shaft extends through the assembly to engage the locking tab and releaseably lock the block to the carrier. The locking shaft is rotatable between a locking position to engage the locking tab to prevent release from the slot and a release position to release the locking tab from the slot. The shaft is biased to the locking position.

主权项

1. A gripper assembly of a plurality of gripper assemblies driven by a coiled tubing injector, each gripper assembly comprising:
a carrier driven by the coiled tubing injector, the carrier having a first locking part; a gripper block having a second locking part; and a locking shaft for releasable connection of the second locking part of the gripper block to the first locking part of the carrier, the locking shaft operable between a release position and a locking position, wherein, upon actuation of the locking shaft to the locking position the locking shaft engages both the first locking part and the second locking part for connecting the gripper block and carrier and upon actuation of the locking shaft to the release position, the gripper block is released from carrier.