Patent ID: 8739862

Claim:
A system for facilitating a downhole operation, comprising: a downhole tool actuated by an actuating fluid; and a valve system coupled to the downhole tool to control flow of the actuating fluid with respect to the downhole tool, the valve system comprising: a bi-stable actuator; a first valve section coupled to the bi-stable actuator by a plunger; a second valve section coupled to the bi-stable actuator by the plunger, wherein movement of the plunger via the bi-stable actuator in a first direction opens flow to the downhole tool through the first valve section and closes flow to the downhole tool through the second valve section, further wherein movement of the plunger via the bi-stable actuator in a second direction closes flow to the downhole tool through the first valve section and opens flow to the downhole tool through the second valve section, wherein each of the first valve section and the second valve section has a dumping chamber, a charging chamber, and an inlet chamber through which flow is controlled by a pair of plunger tips interacting with corresponding orifices, the plunger tips and corresponding orifices being arranged to balance hydraulic holding forces.