Jeffrey Lund
Cosmetology in Salt Lake City, UT

2013010, May 2, 2013

Dec 18, 2012

13/719127

BAKER HUGHES INCORPORATED - Houston TX, US
Jeffrey B. Lund - Salt Lake City UT, US
Danny E. Scott - Montgomery TX, US
Marcus R. Skeem - Sandy UT, US
Matthew R. Isbell - Houston TX, US

BAKER HUGHES INCORPORATED - Houston TX

E21B 10/54

175425

An abrasive-impregnated cutting structure for use in drilling a subterranean formation is disclosed. The abrasive-impregnated cutting structure may comprise a plurality of abrasive particles dispersed within a substantially continuous matrix, wherein the abrasive-impregnated cutting structure exhibits an anisotropic wear resistance. One or more of the amount, average size, composition, properties, shape, quality, strength, and concentration of the abrasive particles may vary within the abrasive-impregnated cutting structure. Anisotropic wear resistance may relate to a selected direction, such as, for example, one or more of an expected direction of engagement of the abrasive-impregnated cutting structure with the subterranean formation and an anticipated wear direction. Anisotropic wear resistance of an abrasive-impregnated cutting structure may be configured for forming or retaining a formation-engaging leading edge thereof. A rotary drag bit including at least one abrasive-impregnated cutting structure is disclosed.

4919013, Apr 24, 1990

Sep 14, 1988

7/244122

Redd H. Smith - Salt Lake City UT
Jeffrey B. Lund - Salt Lake City UT

Eastman Christensen Company - Salt Lake City UT

B21K 502, B22F 700

761082

A rotary drill bit and process of fabrication in which internal fluid passages and watercourses of the bit are lined with a hard metal matrix material which renders the fluid passages more resistant to the erosive forces of the drilling fluid is provided. Also, elements such as lands for cutter element mountings, sockets, ridges, shoulders and the like on the exterior surface of the bit can be fabricated of a hard abrasion and erosion resistant material and incorporated into the bit body during fabrication. The process includes the steps of providing a hollow mold for molding at least a portion of the drill bit and positioning one or more flexible or moldable tubular elements which correspond to the internal watercourses in the mold. The elements are fabricated of a hard metal powdered material dispersed in a polymeric binder. A bit blank is then positioned at least partially within the mold and the mold packed with a metal matrix material which forms the body of the bit.

7954380, Jun 7, 2011

Sep 3, 2009

12/553655

Jeffrey B. Lund - Salt Lake City UT, US
Nicholas J. Lyons - Houston TX, US
Eric C. Sullivan - Houston TX, US
Terry D. Watts - Spring TX, US

Baker Hughes Incorporated - Houston TX

G01N 29/06, G01N 29/265

73629, 73606, 73637

A method for conducting nondestructive internal inspection of a rotary drill bit used for drilling subterranean formations comprises communicating ultrasonic waves into a drill bit and detecting ultrasonic waves that are reflected by at least a portion of the drill bit. In some embodiments, the waves may be directed into the drill bit from within a longitudinal bore thereof. Reflected waves also may be detected from within the bore. The methods may be used to develop threshold acceptance criteria for classifying drill bits as acceptable or unacceptable to prevent catastrophic failures of drill bits during use. Systems and apparatuses are disclosed for conducting nondestructive ultrasonic inspection of a drill bit used for drilling subterranean formations. The systems and apparatuses may comprise an ultrasonic probe configured for insertion within an internal longitudinal bore of a drill bit. Drill bits are disclosed that are configured to facilitate nondestructive ultrasonic inspection thereof.

6112836, Sep 5, 2000

Sep 8, 1997

8/924935

John R. Spaar - Covington LA
James A. Norris - Sandy UT
Christopher C. Beuershausen - Lafayette LA
Rudolf C. O. Pessier - Houston TX
Michael P. Ohanian - Slidell LA
Roland Illerhaus - The Woodlands TX
Jeffrey B. Lund - Salt Lake City UT
Michael L. Doster - Spring TX

Baker Hughes Incorporated - Houston TX

E21B 1710

175408

A rotary drag bit being suitable for directional drilling. The bit includes a bit body from which extend radially-oriented blades carrying PDC cutters. The blades extend to primary gage pads, above which secondary gage pads are either longitudinally spaced or rotationally spaced, or both, defining a gap or discontinuity between the primary and secondary gage pads through which drilling fluid from adjacent junk slots may communicate laterally or circumferentially. Longitudinally leading edges of the secondary gage pads may carry cutters for smoothing the sidewall of the borehole. The tandem primary and secondary gage pads provide enhanced bit stability and reduced side cutting tendencies. The discontinuities between the primary and secondary gage pads enhance fluid flow from the bit face to the borehole annulus above the bit, promoting formation cuttings removal. The tandem gage arrangement also has utility in conventional bits not designed specifically for directional drilling.

5653300, Aug 5, 1997

Jun 7, 1995

8/480623

Jeffrey B. Lund - Salt Lake City UT
Redd H. Smith - Salt Lake City UT

Baker Hughes Incorporated - Houston TX

F21B 1046, B23P 900

175428

A superhard cutting element having a polished, low friction substantially planar cutting face with a surface finish roughness of 10. mu. in. or less and preferably 0. 5. mu. in. or less. A chamfered cutting edge and side surface of the superhard material table of the same surface finish roughness are also disclosed. The surface roughness of the aforementioned superhard material table portions may be reduced by mechanically smoothing and polishing according to one of several variations of the method of the invention.

8333814, Dec 18, 2012

Mar 3, 2009

12/396556

Van J. Brackin - Spring TX, US
Jeffrey B. Lund - Salt Lake City UT, US
Danny E. Scott - Montgomery TX, US
Marcus R. Skeem - Sandy UT, US
Matthew R. Isbell - Houston TX, US

Baker Hughes Incorporated - Houston TX

B24D 18/00, B24D 99/00, B21K 5/02

51293, 51307, 761082

An abrasive-impregnated cutting structure for use in drilling a subterranean formation is disclosed. The abrasive-impregnated cutting structure may comprise a plurality of abrasive particles dispersed within a substantially continuous matrix, wherein the abrasive-impregnated cutting structure exhibits an anisotropic wear resistance. One or more of the amount, average size, composition, properties, shape, quality, strength, and concentration of the abrasive particles may vary within the abrasive-impregnated cutting structure. Anisotropic wear resistance may relate to a selected direction, such as, for example, one or more of an expected direction of engagement of the abrasive-impregnated cutting structure with the subterranean formation and an anticipated wear direction. Anisotropic wear resistance of an abrasive-impregnated cutting structure may be configured for forming or retaining a formation-engaging leading edge thereof. A rotary drag bit including at least one abrasive-impregnated cutting structure is disclosed.

5447208, Sep 5, 1995

Nov 22, 1993

8/156086

Jeffrey B. Lund - Salt Lake City UT
Redd H. Smith - Salt Lake City UT

Baker Hughes Incorporated - Houston TX

E21B 1046, B23P 900

175428

A superhard cutting element having a polished, low friction, substantially planar cutting face with a surface finish roughness of 10. mu. in. or less and preferably 0. 5. mu. in. or less.

6145608, Nov 14, 2000

Oct 6, 1999

9/413620

Jeffrey B. Lund - Salt Lake City UT
Redd H. Smith - Salt Lake City UT
Trent N. Butcher - Midvale UT

Baker Hughes Incorporated - Houston TX

E21B 1046, B23P 900

175428

A superhard cutting element having a polished, low friction, substantially planar cutting face with a surface finish roughness of 10. mu. in. or less and preferably 0. 5. mu. in. or less. A chamfered cutting edge and side surface of the superhard material table of the same surface finish roughness are also disclosed. The surface roughness of the aforementioned superhard material table portions may be reduced by mechanically smoothing and polishing according to one of several variations of the method of the invention.

7621351, Nov 24, 2009

May 11, 2007

11/747651

Lester I. Clark - The Woodlands TX, US
John C. Thomas - Magnolia TX, US
Jeffrey B. Lund - Salt Lake City UT, US
Eric E. McClain - Spring TX, US

Baker Hughes Incorporated - Houston TX

E21B 7/28

175394, 175406

A reaming tool includes a tubular body having a nose portion with a concave center. A plurality of blades defining junk slots therebetween extend axially behind the nose and taper outwardly from the exterior of the tubular body. Rotationally leading edges of the blades carry a plurality of cutting elements from the axially leading ends. Selected surfaces and edges of the blades bear tungsten carbide, which may comprise crushed tungsten carbide. The shell of the nose is configured to ensure drillout from the centerline thereof toward the side wall of the tubular body. A method of drilling out a reaming tool is also disclosed.

5967250, Oct 19, 1999

Jun 10, 1997

8/872207

Jeffrey B. Lund - Salt Lake City UT
Redd H. Smith - Salt Lake City UT
Trent N. Butcher - Midvale UT

Baker Hughes Incorporated - Houston TX

E21B 1046, B23P 900

175428

A superhard cutting element having a polished, low friction 1 substantially planar cutting face with a surface finish roughness of 10. mu. in. or less and preferably 0. 5. mu. in. or less. A chamfered cutting edge and side surface of the superhard material table of the same surface finish roughness are also disclosed. The surface roughness of the aforementioned superhard material table portions may be reduced by mechanically smoothing and polishing according to one of several variations of the method of the invention.