Downhole Clamping Mechanism

摘要

An anchoring system for use with a downhole tool includes a body with anchor members mounted on the body that pivot radially outward from the body and into engagement with an inner surface of a tubular. Curved slots are provided along a portion of the members and a sliding block has a protrusion that projects into the slots. The slots are curved so that when the block is urged axially within the body, the interaction between the slots and protrusions pivots the members radially outward. A piston is urged through the body to drive the block. Optionally, an elongate helical gear may cooperate with grooves formed in an edge of the members so that rotating the gear pivots the members radially outward.

主权项

1. An apparatus for use downhole comprising:
a downhole tool; and an anchoring system comprising,
a body having an axis, anchoring members each having a base portion pivotingly coupled with the body along a line substantially parallel with the axis of the body, and an anchoring portion spaced apart from the base portion that is moveable from a running position proximate the body to a deployed position spaced radially outward from the body,
an actuator engaged with the base portion acomprises helical grooves that project radially outward from the body and into engagement with an actuation flap in the base portions, so that when the grooves move axially within the body, interference between the grooves and actuation flap exerts a pivoting force onto the anchoring members that pivots the anchoring members into the deployed position, anda connector selectively coupled with the downhole tool.