Thomas A Ray

US Patent:

7013998, Mar 21, 2006

Filed:

Nov 20, 2003

Appl. No.:

10/717742

Inventors:

Thomas Wayne Ray - Plano TX, US
James Edward Boyce - Cedar Hill TX, US

Assignee:

Halliburton Energy Services, Inc. - Houston TX

International Classification:

E21B 10/22

US Classification:

175371, 175372

Abstract:

A drill bit () for drilling a wellbore that traverses subterranean formations includes a drill bit body () having a plurality of journal pins (), each having a bearing surface (), and a rotary cutter () rotatably mounted on each journal pin (), each rotary cutter () including a bearing surface (). A pressure-compensated reservoir () is in fluid communication with the bearing surfaces () and has a lubricant therein. A seal element () is positioned between each journal pin () and rotary cutter () and retains the lubricant in the bearing surfaces (). The seal element () is formed from a nanocomposite material including a polymer host material and a plurality of nanostructures.

US Patent:

7696275, Apr 13, 2010

Filed:

Jun 5, 2007

Appl. No.:

11/810323

Inventors:

Jeremy Buc Slay - Ft. Worth TX, US
Thomas Wayne Ray - Plano TX, US

Assignee:

Halliburton Energy Services, Inc. - Houston TX

International Classification:

C08K 3/04

US Classification:

524496, 524445, 524495

Abstract:

A seal element () for providing a static or dynamic seal between two components () in a downhole tool includes a polymer host material () and a plurality of nanostructures () forming a nanocomposite material (). The polymer host material () has a plurality of regions of free volume () that receive the nanostructures (). The nanostructures () and the polymer host material () form interfacial interactions that improve the useful life of the seal element () by minimizing seal failures associated with explosive decompression, extrusion, spiral failure, abrasion, temperature degradation and the like.

US Patent:

20050109502, May 26, 2005

Filed:

Nov 20, 2003

Appl. No.:

10/717814

Inventors:

Jeremy Buc Slay - Ft. Worth TX, US
Thomas Ray - Plano TX, US

International Classification:

E21B023/00

US Classification:

166179000

Abstract:

A seal element () for providing a static or dynamic seal between two components () in a downhole tool includes a polymer host material () and a plurality of nanostructures () forming a nanocomposite material (). The polymer host material () has a plurality of regions of free volume () that receive the nanostructures (). The nanostructures () and the polymer host material () form interfacial interactions that improve the useful life of the seal element () by minimizing seal failures associated with explosive decompression, extrusion, spiral failure, abrasion, temperature degradation and the like.

US Patent:

42275733, Oct 14, 1980

Filed:

Nov 16, 1978

Appl. No.:

5/961139

Inventors:

Joseph L. Pearce - Dallas TX
Thomas W. Ray - Plano TX
Donald F. Taylor - Dallas TX
John H. Yonker - Carrollton TX

Assignee:

Otis Engineering Corporation - Dallas TX

International Classification:

E21B 3312

US Classification:

166153

Abstract:

A piston for use as a TFL locomotive or well swab having a seal unit forming a fluid seal between the piston and the inner wall of a flow conductor or tubing string. The seal unit comprising at least one annular fin or lip extending radially from the piston. The annular fin or lip having an exterior portion formed from elastomeric material which is deformable to seal with the flow conductor and an interior portion formed from elastomeric material molded on wire mesh. The interior portion providing increased wear resistance and strength for the annular lip. In one version, the piston carries several individual seal units each having an annular lip.

US Patent:

47534443, Jun 28, 1988

Filed:

Oct 30, 1986

Appl. No.:

6/925279

Inventors:

Alan T. Jackson - Coppell TX
Thomas W. Ray - Plano TX
Eduardo Alvarez - Houston TX

Assignee:

Otis Engineering Corporation - Dallas TX

International Classification:

F16J 1546
F16J 1556
C08G 802
E21B 33128

US Classification:

277230

Abstract:

A seal and seal assembly for use with well tools, such particularly as well packers, for sealing the annulus between the well packer mandrel and the wall of a well tubing such as casing. The seal is fabricated of an elastomeric-like material comprising fluorocarbon resins, poly arylene ketone, and carbon fibers mounted between end retainer assemblies each comprising a mesh anti-extrusion ring, a tapered mesh backup ring, and a metal backup shoe. The seal has internal longitudinally spaced V-shaped recesses to cause the seal to buckle radially outwardly as it is compressed longitudinally to increase the stress along the middle portion of the seal where the seal meets the well casing inner wall. The seal is useful at high temperatures and pressures such as 550 degrees F. and greater than 15,000 psi.