Fike Corporation

Gene Hill

Devang Patel

Bradford T Stilwell

Eddie R Malcolm

E Dean Miller

Andrew Tworek

Jeffrey A Stokes

Lindsey Lee

A valve comprising a slidable internal shuttle that is shiftable between a valve closed and a valve open configuration is provided. The valve can be configured so that minimal force is required to effect shifting of the shuttle, even though the valve can be of a large diameter. In the valve closed configuration, the shuttle blocks communication between the valve inlet and outlet. Sliding of the shuttle to the valve open configuration permits fluid to flow through the valve. The shuttle can be configured with internal surfaces that provide some or no biasing forces acting upon the shuttle in the valve closed direction.

Slide valve

Nozzles () for reducing noise generated by the release of gas from a hazard suppression system () are provided. The nozzles () comprise a plurality of partitions () that define a serpentine gas flow path through the nozzle. The flow path causes the gas to undergo a plurality of expansions and directional changes thereby reducing the velocity of the gas and dampening the generation of sound waves as the gas exits the nozzle () through the nozzle outlet ().

Inert gas suppression system nozzle

A cementing tool () capable of being installed in a casing string () and configured to selectively permit the flow of cement through one or more ports () in the tool is provided. The ports () are normally sealed by rupture disc assemblies () comprising a rupture disc () that can be opened to permit flow of cement through the casing string central bore () and into the annulus () defined by the casing string () and the downhole formation (). The cementing tool () is particularly useful during cementing operations in which the annulus () has become blocked by a collapsed portion of the formation by allowing the obstruction () to be bypassed and the flow of cement () into the annulus to be continued without substantial interruption. Tool () may also be used in multistage cementing operations.

Method and apparatus for cementing a wellbore

Growing community of inventors

Odessa, MO, United States of America

Gene Hill