Baker Hughes Corporation

Steven L Jennings

Douglas James Murray

Robert Joe Coon

Michael A Carmody

Kevin R Jones

Mark E Hopmann

Brian A Roth

Steve Rosenblatt

David Z Anderson

Darren E Bane

Gerald D Lynde

John Lindley Baugh

Terry R Bussear

Michael W Norris

Mark W Brockman

Arne Gunnar Larsen

Don A Hopmann

Jeffry S Edwards

Darrin F Willauer

David G Forsyth

Christopher L Gann

David Martin

Brian C Wood

Wayne Welch

William K Brown

James K Jackson

Edwin Schubrick

James Kenneth Whanger

Edward J Zisk

A sensor and transmitter is employed with a pressurized chamber of a downhole tool to be able to tell at a glance when the tool is delivered for service that it is properly charged. The sensor and transmitter can be integrated within the tool so as to be protected from damage during run in. While in service the sensor and transmitter can monitor pressure in real time and include a capability to send surface signals for real time monitoring of chamber pressures corrected for the service depth, temperature and density of the hydraulic fluid, for example. The signal can be acoustic through the control line or the annulus or delivered through a fiber optic cable or signal wire run in the hydraulic control line, an auxiliary line or through the annulus.

Method of using a charged chamber pressure transmitter for subterranean tools

Method of using a charged chamber pressure transmitter for subsurface safety valves

Downhole flow control devices

Several downhole flow control devices are disclosed which are meterable and are also capable of shutting of a particular zone in a well. The several embodiments include a multiple valve body, a toroidal inflatable valve, and a series of related choke systems. The downhole flow control choke mechanisms each include a downhole electronics package to provide programming or decision making capacity as well as motor actuation systems. Each choke mechanism also includes a system whereby the device can be converted to manual operation and actuated by a conventional shifting tool.

Motor drive actuator for downhole flow control devices

Junctions in multilateral well structures are sealed by employing a variety of degrees of premachined components and a variety of sealing embodiments, including casing segments having premachined windows, side pocket members which are adapted to reside within the string during run in and move laterally to the deployed position, woven members, cement filled ECPs, etc. Also disclosed is a downhole milling device which cuts a window in a casing segment or other material based upon a predetermined geometric pattern imposed upon the cutting tool by an integral template.

Method for sealing the junctions in multilateral wells

A downhole controller for a flow control device. The controller is responsive to commands from the surface or from downhole and controls the flow device using a four way solenoid actuated spool valve and a hydraulically actuated piston system connected to the flow control device.

Electro hydraulic downhole control device

Growing community of inventors

Friendswood, TX, United States of America

Steven L Jennings