Interventionless operation of downhole tool

摘要

A technique facilitates actuation of a downhole tool, such as a valve, in a simple, rapid, and cost-effective manner. The technique comprises installing the downhole tool with a trip saver. The trip saver can be actuated by increasing a tubing pressure or other suitable pressure source beyond a threshold level. Once the trip saver is actuated, a fluid under suitable pressure is provided to a downhole tool through a passageway opened via the trip saver. This enables actuation of the downhole tool to a desired state.

主权项

1. A valve system, comprising:
an actuation component coupled to formation pressure and comprising:
a compensating piston; andan oil chamber; a trip saver component coupled to tubing pressure and comprising:
one or more rupture discs configured to burst upon reaching a threshold pressure; anda pressure isolation piston within a chamber of a valve block and temporarily retained via a shear member; and an actuator comprising an operating piston fluidly coupled to the valve block by a pair of communication lines which extend from opposite sides of the operating piston, respectively, to the chamber to prevent accidental actuation of the actuator; wherein after the tubing pressure reaches the threshold pressure, the one or more rupture discs are burst, translating the pressure isolation piston within the valve block, shearing the shear member, and establishing communication between the oil chamber and the actuator to actuate a device to a desired state.