Gary L Elliott

US Patent:

57302170, Mar 24, 1998

Filed:

Jun 21, 1996

Appl. No.:

8/667724

Inventors:

Steve Owens - The Woodlands TX
Brett Bouldin - Spring TX
Gary Elliott - Magnolia TX

Assignee:

PES, Inc. - The Woodlands TX

International Classification:

E21B 3600

US Classification:

166 57

Abstract:

A system for extending the life span of electronic components in a high temperature well. A thermal electric cooler is located in a position thermally communicating with the electronic component in the well. The thermal electric cooler lowers the temperature of the electronic component to a temperature that retards the deterioration of the electronic component, and is particularly useful in well completion tools requiring an extended life. A vacuum is maintained about the thermal electric cooler or the electronic components to reduce convection energy losses.

US Patent:

56474350, Jul 15, 1997

Filed:

Sep 25, 1995

Appl. No.:

8/533282

Inventors:

Steve Owens - The Woodlands TX
Brett Bouldin - Pearland TX
Gary Elliott - Magnolia TX

Assignee:

PES, Inc. - The Woodlands TX

International Classification:

E21B 4700

US Classification:

16625001

Abstract:

An apparatus and method for protecting downhole electronic components and for monitoring the deterioration of such components. The electronic components are positioned within a tool recess, and a vacuum is drawn on the recess to remove oxygen, water vapor, and other contaminants from contact with the electronic components. In one embodiment of the invention, insulating fluid or an inert gas can be placed in the recess to isolate the electronic components. The seal integrity of the recess can be tested before the tool is run into the well or before the tool is set in the well. A pressure sensor monitors the deterioration of the vacuum, or fluctuations in the pressure of the insulating fluid or inert gas, to detect leakage of well fluids into the recess, leakage of gas away from the recess, or to detect gases formed from corrosion of the electronic components.

US Patent:

59950200, Nov 30, 1999

Filed:

Oct 17, 1995

Appl. No.:

8/544125

Inventors:

Steve Owens - The Woodlands TX
Gary Elliott - Magnolia TX

Assignee:

PES, Inc. - The Woodlands TX

International Classification:

H01V 300

US Classification:

3408549

Abstract:

An apparatus for transmitting electricity between downhole well tools and the well surface. The apparatus incorporates a surface controller in combination with a conductor and a downhole receiver module. A choke prevents electricity from the controller from entering a high voltage DC power source, and a downhole regulator converts high voltage, low current power into high current, low voltage power. This feature of the invention permits a single wire to transmit sufficient power to operate multiple downhole well tools. The controller also includes a transmitter and a modulator operable to generate an electric signal representating at least two states, wherein a first state is represented by a signal, and wherein a second state is represented by the absence of an electric signal. A receiver module receives the electric signals and selectively transmits commands to the associated well tool or to the surface controller. In a two conductor wire, the conductors are evenly spaced so that attenuation of the signals is reduced.

US Patent:

42853656, Aug 25, 1981

Filed:

Aug 23, 1979

Appl. No.:

6/068745

Inventors:

Graham C. Coats - St. Louis MO
Gary A. Elliott - Chesterfield MO
Michael A. Bulboaca - St. Louis MO

Assignee:

Barry-Wehmiller Company - St. Louis MO

International Classification:

F16K 1102

US Classification:

13762515

Abstract:

A rotary valve for pressure fluid distribution to accomplish a sequential delivery of the pressure fluid to a series of outlets, in which a housing contains a stator having a semi-cylindrical face surface through which outlet ports open, and an elongated cylindrical rotor mounted for rotation adjacent the stator face, the rotor having a series of flow directing passages positioned to direct pressure fluid supplied to the interior of the housing through each of the outlet ports at least one at a time and in a predetermined sequence during rotation of the rotor. The arrangement of the fluid flow passages in the rotor, and the angular spacing of the passages around the circumference of the rotor is selected to minimize or avoid the destructive effect of water hammer by establishing a flow through a portion of a trailing port before a leading port effectively closes off the fluid flow.

US Patent:

57203423, Feb 24, 1998

Filed:

Jun 21, 1996

Appl. No.:

8/667726

Inventors:

Steve Owens - The Woodlands TX
Brett Bouldin - Spring TX
Gary Elliott - Magnolia TX

Assignee:

PES, Inc. - The Woodlands TX

International Classification:

E21B 3600
F25B 2102

US Classification:

166 57

Abstract:

A system for extending the life span of electronic components in a high temperature well. A thermal electric cooler is located in a position thermally communicating with the electronic component in the well. The thermal electric cooler lowers the temperature of the electronic component to a temperature that retards the deterioration of the electronic component, and is particularly useful in well completion tools requiring an extended life. The cold side of the thermal electric cooler can comprise a multi chip module directly bonded to the electric component to reduce the mass and size of a packaged electronic component or integrated circuit formed with more than one electronic component.