Fred R Martin

US Patent:

52212149, Jun 22, 1993

Filed:

May 29, 1992

Appl. No.:

7/890715

Inventors:

Fred S. Martin - Claremore OK

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

H01R 460

US Classification:

439191

Abstract:

An electrical connector for interconnecting tandem motors of an electrical submersible well pump utilizes single piece metal pins and sleeves. Each half of the connector has insulators located in the body. Metal connection sleeves are located in holes in the insulators. The connection sleeves have threads for securing to threads formed in the insulators. The metal connection pins also have threads for securing to threads formed in the insulators. The connection sleeves and connection pins have axial slots formed on their exteriors.

US Patent:

57552886, May 26, 1998

Filed:

Jan 17, 1997

Appl. No.:

8/785712

Inventors:

John L. Bearden - Claremore OK
Ketankumar Kantilal Sheth - Tulsa OK
Fred Scott Martin - Claremore OK

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 4300

US Classification:

166370

Abstract:

A gas compressor is employed downhole in a well for pressurizing formation gas. The gas compressor is driven by a downhole electrical motor. The downhole assembly also includes a pump. The pump might be located below the motor and driven by the same motor. In that event, the pump pumps liquid being produced by the formation downward to a liquid disposal formation. Also, the pump may pump the liquid to the surface, with the gas being delivered into a repressurizing zone.

US Patent:

52693775, Dec 14, 1993

Filed:

Nov 25, 1992

Appl. No.:

7/981705

Inventors:

Fred S. Martin - Claremore OK

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 2300

US Classification:

166385

Abstract:

An electrical submersible well pump assembly supported on a continuous length of coil tubing. An electrical cable extends through the coil tubing from the pump assembly to the surface for supplying electrical power to the pump assembly. The cable is of lesser diameter than the inner diameter of the tubing, resulting in an annulus. Standoff members locate in the annulus to centralize the cable. Standoff members frictionally engage the inner diameter of the tubing and the outer diameter of the cable to transfer weight of the cable to the coil tubing. Flow passages extend through the annulus surrounding the cable to enable lubricant and coolant fluid to be pumped from the surface to the pump assembly.

US Patent:

56051930, Feb 25, 1997

Filed:

Jun 30, 1995

Appl. No.:

8/497197

Inventors:

John L. Bearden - Claremore OK
Ketankumar K. Sheth - Tulsa OK
Fred S. Martin - Claremore OK

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 4300

US Classification:

166370

Abstract:

A gas compressor is employed downhole in a well for pressurizing formation gas. The gas compressor is driven by a downhole electrical motor. The downhole assembly also includes a pump. The pump might be located below the motor and driven by the same motor. In that event, the pump pumps liquid being produced by the formation downward to a liquid disposal formation. Also, the pump may pump the liquid to the surface, with the gas being delivered into a repressurizing zone.

US Patent:

52979431, Mar 29, 1994

Filed:

Mar 26, 1993

Appl. No.:

8/037762

Inventors:

Fred S. Martin - Claremore OK

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

F04B 1700

US Classification:

317422

Abstract:

A discharge head for an electrical submersible pump allows the pump assembly to be supported on coiled tubing. The discharge head has a cable passage through which the power cable passes. A motor lead extends from the motor alongside the pump and to the discharge head. The discharge head has flow passages that are offset relative to the longitudinal axis of the discharge head. An annulus seal mounted to the discharge head seals the annulus surrounding the discharge head. A power cable extends through the coiled tubing in one embodiment and is strapped to the coiled tubing in another embodiment.

US Patent:

55548970, Sep 10, 1996

Filed:

Apr 22, 1994

Appl. No.:

8/231542

Inventors:

Fred S. Martin - Claremore OK
John L. Bearden - Claremore OK

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

H02K 919
H02K 900
H02K 512
F04B 1703

US Classification:

310 54

Abstract:

The motor cooling and protection system has a shroud concentrically disposed about a motor housing of a downhole motor. The shroud is sealed from well fluids in the well and defines and annular chamber between the motor housing and the shroud. A longitudinal annular baffle is located in the chamber and partitions the chamber into two annular and concentric sub-chambers. The two sub-chambers have axially spaced apart communication openings such that the two sub-chambers are in fluid communication with each other. A cooling fluid having high conductive heat transfer rates is located in the chamber for circulating between the two sub-chambers, through the communication openings, to facilitate and enhance the transfer of heat between the motor and the well fluids.