Tu Trinh

US Patent:

7506695, Mar 24, 2009

Filed:

Nov 13, 2007

Appl. No.:

11/939361

Inventors:

Paul E. Pastusek - The Woodlands TX, US
Eric C. Sullivan - Houston TX, US
Daryl L. Pritchard - Shenandoah TX, US
Keith Glasgow - Willis TX, US
Tu Tien Trinh - Houston TX, US
Paul J. Lutes - The Woodlands TX, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 47/00

US Classification:

175 40, 7315245

Abstract:

Drill bits and methods for sampling sensor data associated with the state of a drill bit are disclosed. A drill bit for drilling a subterranean formation comprises a bit body and a shank. The shank further includes a central bore formed through an inside diameter of the shank and configured for receiving a data analysis module. The data analysis module comprises a plurality of sensors, a memory, and a processor. The processor is configured for executing computer instructions to collect the sensor data by sampling the plurality of sensors, analyzing the sensor data to develop a severity index, comparing the sensor data to at least one adaptive threshold, and modifying a data sampling mode responsive to the comparison. A method comprises collecting sensor data by sampling a plurality of physical parameters associated with a drill bit state while in various sampling modes and transitioning between those sampling modes.

US Patent:

7510026, Mar 31, 2009

Filed:

Nov 13, 2007

Appl. No.:

11/939389

Inventors:

Paul E. Pastusek - The Woodlands TX, US
Eric C. Sullivan - Houston TX, US
Daryl L. Pritchard - Shenandoah TX, US
Keith Glasgow - Willis TX, US
Tu Tien Trinh - Houston TX, US
Paul J. Lutes - The Woodlands TX, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 47/00

US Classification:

175 40, 7315245

Abstract:

Drill bits and methods for sampling sensor data associated with the state of a drill bit are disclosed. A drill bit for drilling a subterranean formation comprises a bit body and a shank. The shank further includes a central bore formed through an inside diameter of the shank and configured for receiving a data analysis module. The data analysis module comprises a plurality of sensors, a memory, and a processor. The processor is configured for executing computer instructions to collect the sensor data by sampling the plurality of sensors, analyzing the sensor data to develop a severity index, comparing the sensor data to at least one adaptive threshold, and modifying a data sampling mode responsive to the comparison. A method comprises collecting sensor data by sampling a plurality of physical parameters associated with a drill bit state while in various sampling modes and transitioning between those sampling modes.

US Patent:

7604072, Oct 20, 2009

Filed:

Jun 7, 2005

Appl. No.:

11/146934

Inventors:

Paul E. Pastusek - Woodlands TX, US
Eric C. Sullivan - Houston TX, US
Daryl L. Pritchard - Shenandoah TX, US
Keith Glasgow - Willis TX, US
Tu Tien Trinh - Houston TX, US
Paul J. Lutes - The Woodlands TX, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 47/01

US Classification:

175 40, 7315259

Abstract:

Drill bits and methods for sampling sensor data associated with the state of a drill bit are disclosed. A drill bit for drilling a subterranean formation comprises a bit body and a shank. The shank further includes a central bore formed through an inside diameter of the shank and configured for receiving a data analysis module. The data analysis module comprises a plurality of sensors, a memory, and a processor. The processor is configured for executing computer instructions to collect the sensor data by sampling the plurality of sensors, analyzing the sensor data to develop a severity index, comparing the sensor data to at least one adaptive threshold, and modifying a data sampling mode responsive to the comparison. A method comprises collecting sensor data by sampling a plurality of physical parameters associated with a drill bit state while in various sampling modes and transitioning between those sampling modes.

US Patent:

7621346, Nov 24, 2009

Filed:

Sep 26, 2008

Appl. No.:

12/238930

Inventors:

Tu Tien Trinh - Houston TX, US
Eric Sullivan - Houston TX, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 10/00

US Classification:

175371, 175331, 175359, 175367, 175369, 384 92, 384 93

Abstract:

A roller cone bit having a sealed lubricant reservoir between a roller cone and a head section. A journal sleeve is included on the head section that circumscribes the journal bearing surface of the head section. The sleeve can axially pivot on the head section, but does not rotate thereon. The reservoir is formed into a journal bearing surface of the head section body and may be sealed by placing a seal around its periphery that extends between the journal bearing surface and journal sleeve. Sealing the reservoir results in a hydrostatic condition therein and substantially equalized pressures.

US Patent:

7836792, Nov 23, 2010

Filed:

Sep 25, 2008

Appl. No.:

12/237421

Inventors:

Tu Tien Trinh - Houston TX, US
Eric Sullivan - Houston TX, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

B21K 5/04

US Classification:

761082, 761081

Abstract:

A rock bit is formed with pockets for enhanced cutting element retention and support of cutting elements during operation of the rock bit. Portions of the pockets are carburized to increase a yield strength of the pockets, which also increases the retention of the cutting elements. The pockets are formed at a diameter that is slightly smaller than an outer diameter of the cutting elements. Portions of the pockets are then carburized. The pockets are heated until the diameter of the pockets is equal to the outer diameter of the cutting elements. After the rock bit has been cooled and cleaned, a material is placed in each pocket prior to installing the cutting elements. The material homogenizes support for the cutting elements during operation of the rock bit.

US Patent:

7849934, Dec 14, 2010

Filed:

Feb 16, 2007

Appl. No.:

11/708147

Inventors:

Paul E. Pastusek - The Woodlands TX, US
Eric C. Sullivan - Houston TX, US
Daryl L. Pritchard - Shenandoah TX, US
Keith Glasgow - Willis TX, US
Tu Tien Trinh - Houston TX, US
Paul J. Lutes - The Woodlands TX, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 44/00
E21B 47/12

US Classification:

175 45, 7315245

Abstract:

Drill bits and methods for sampling sensor data associated with the state of a drill bit are disclosed. A drill bit for drilling a subterranean formation comprises a bit body and a shank. The shank further includes a central bore formed through an inside diameter of the shank and configured for receiving a data analysis module. The data analysis module comprises a plurality of sensors, a memory, and a processor. The processor is configured for executing computer instructions to collect the sensor data by sampling the plurality of sensors, analyze the sensor data to develop a severity index, compare the sensor data to at least one adaptive threshold, and modify a data sampling mode responsive to the comparison. A method comprises collecting sensor data by sampling a plurality of physical parameters associated with a drill bit state while in various sampling modes and transitioning between those sampling modes.

US Patent:

7987925, Aug 2, 2011

Filed:

Oct 8, 2010

Appl. No.:

12/901172

Inventors:

Paul E. Pastusek - The Woodlands TX, US
Eric C. Sullivan - Houston TX, US
Daryl L. Pritchard - Shenandoah TX, US
Tu Tien Trinh - Houston TX, US
Paul J. Lutes - The Woodlands TX, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 44/00

US Classification:

175 50, 175 45, 7315245

Abstract:

Drill bits and methods for sampling sensor data associated with the state of a drill bit are disclosed. A drill bit for drilling a subterranean formation comprises a bit body and a shank. The shank further includes a central bore formed through an inside diameter of the shank and configured for receiving a data analysis module. The data analysis module comprises a plurality of sensors, a memory, and a processor. The processor is configured for executing computer instructions to collect the sensor data by sampling the plurality of sensors, analyze the sensor data to develop a severity index, compare the sensor data to at least one adaptive threshold, and modify a data-sampling mode responsive to the comparison. A method comprises collecting sensor data by sampling a plurality of physical parameters associated with a drill bit state while in various sampling modes and transitioning between those sampling modes.

US Patent:

8087477, Jan 3, 2012

Filed:

May 5, 2009

Appl. No.:

12/435729

Inventors:

Eric C. Sullivan - Houston TX, US
Tu Tien Trinh - Houston TX, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 47/01
G06F 19/00

US Classification:

175 40, 703 1, 702 1

Abstract:

Drill bits and methods of measuring drill bit conditions are disclosed. A drill bit for drilling a subterranean formation comprises a bit bearing at least one cutting element and adapted for coupling to a drill string. The drill bit may also comprise a chamber formed within the bit and configured for maintaining a pressure substantially near a surface atmospheric pressure while drilling the subterranean formation. In addition, the drill bit may comprise at least one optical sensor disposed in the chamber and configured for sensing at least one physical parameter exhibited by the drill bit while drilling a subterranean formation.