Camco International, Inc.

Camco Inc.

Dwayne E May

David E McCalvin

Russell A Johnston

Gregory B Stephenson

An annulus vent valve is provided to vent gas or other production fluids from below a packer set within a well in deep-set applications. The valve may broadly include: a body member having a first end, a second end, an outer surface, a longitudinal bore adjacent the second end, and at least one flow port extending from the longitudinal bore to the outer surface; a closure member mounted within the longitudinal bore to control fluid flow therethrough; a mechanism for biasing the closure member to a normally closed position to prevent fluid flow through the longitudinal bore; a closure member actuator disposed for movement within the longitudinal bore to open and close the closure member; a mechanism for biasing the closure member actuator away from the closure member; a piston connected to the closure member actuator and having a first end and a second end; and a gas chamber disposed within the body member and in communication with the second end of the piston.

Deep-set annulus vent valve

A dump and kill valve for use in a sidepocket having a main bore, a sidepocket in communication with the main bore with ports between the sidepocket and the outside of the mandrel and a shoulder above the pocket. The valve includes a body having a no-go shoulder with an upper first and a lower second seal spaced apart and positioned on the body sealing in the pocket on opposite sides of the port for initially blocking fluid flow. One of the seals is releasably connected to the body and is movable relative to the body upwardly in response to fluid pressure for opening communication between the ports and the main bore. Latch means may be provided between the movable seal and the body for latching the movable seal after opening and the setting tool may include a releasable seal holding shoulder for preventing premature movement of the movable seal.

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Humble, TX, United States of America

Dwayne E May