Patent ID: 8146673
Filing Date: 2012-04-03
Classification: E21B

Abstract:
1. A method of activating a downhole tool assembly comprising a sleeve having a continuous j-slot, a lug rotator ring configured to move axially relative to the sleeve and having a lug configured to move within the continuous j-slot, and lock comprising a shear pin and a locking portion configured to move separately from the lug between a locked position and an unlocked position, where the locking portion is in the locked position to block the lug from moving within the continuous j-slot during run-in, the method comprising: lowering the downhole tool assembly into a well bore on a tool string; shearing the shear pin, moving the locking portion separately from the lug to the unlocked position to unblock the lug and allow the lug to move within the continuous j-slot, wherein the locking portion is biased in the unlocked position by a biasing member; and setting the downhole tool assembly by lifting upward and pushing downward on the tool string.