ACTUATION ASSEMBLY FOR AN ISOLATION VALVE

原文（中文）

An actuation assembly. The actuation assembly may include a housing, a mandrel disposed within the housing and shiftable within the housing to open and close an isolation valve, and a piston assembly disposed between the housing and the mandrel. The piston assembly may include a first hydraulic chamber fluidly couplable to a first trigger, a second hydraulic chamber fluidly couplable to the first trigger and a second trigger, a third hydraulic chamber fluidly couplable to the second trigger, a close collet piston positioned between the first hydraulic chamber and the second hydraulic chamber and close collet piston operable to shift the mandrel to close the isolation valve when the first trigger is activated, and an open collet piston positioned between the second hydraulic chamber and the third hydraulic chamber and open collet piston operable to shift the mandrel to open the isolation valve when the second trigger is activated.