William H Heuser

US Patent:

6460631, Oct 8, 2002

Filed:

Dec 15, 2000

Appl. No.:

09/738687

Inventors:

Mark W. Dykstra - Kingwood TX
William Heuser - The Woodlands TX
Michael L. Doster - Spring TX
Jack T. Oldham - Willis TX
Terry D. Watts - Spring TX
Daniel E. Ruff - Kingwood TX
Rodney B. Walzel - Conroe TX
Christopher C. Beuershausen - Spring TX

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 1046

US Classification:

175 57, 175428, 175431

Abstract:

A rotary drag bit and method for drilling subterranean formations including a bit body being provided with at least one cutter thereon exhibiting reduced, or limited, exposure to the formation so as to control the depth-of-cut of the at least one cutter, so as to control the volume of formation material cut per bit rotation, as well as to control the amount of torque experienced by the bit and an optionally associated bottomhole assembly regardless of the effective weight-on-bit. The exterior of the bit preferably includes a plurality of blade structures carrying at least one such cutter thereon and including a sufficient amount of bearing surface area to contact the formation so as to generally distribute the weight of the bit against the bottom of the borehole without exceeding the compressive strength of the formation rock.

US Patent:

6779613, Aug 24, 2004

Filed:

Oct 7, 2002

Appl. No.:

10/266534

Inventors:

Mark W. Dykstra - Kingwood TX
William Heuser - The Woodlands TX
Michael L. Doster - Spring TX
Jack T. Oldham - Willis TX
Terry D. Watts - Spring TX
Daniel E. Ruff - Kingwood TX
Rodney B. Walzel - Conroe TX
Christopher C. Beuershausen - Spring TX

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 1046

US Classification:

175 57, 175428, 175431

Abstract:

A rotary drag bit and method for drilling subterranean formations including a bit body being provided with at least one cutter thereon exhibiting reduced, or limited, exposure to the formation so as to control the depth-of-cut of the at least one cutter, so as to control the volume of formation material cut per bit rotation, as well as to control the amount of torque experienced by the bit and an optionally associated bottomhole assembly regardless of the effective weight-on-bit. The exterior of the bit preferably includes a plurality of blade structures carrying at least one such cutter thereon and including a sufficient amount of bearing surface area to contact the formation so as to generally distribute an additional weight applied to the bit against the bottom of the borehole without exceeding the compressive strength of the formation rock.

US Patent:

6935441, Aug 30, 2005

Filed:

Jun 4, 2004

Appl. No.:

10/861129

Inventors:

Mark W. Dykstra - Kingwood TX, US
William Heuser - The Woodlands TX, US
Michael L. Doster - Spring TX, US
Jack T. Oldham - Willis TX, US
Terry D. Watts - Spring TX, US
Daniel E. Ruff - Kingwood TX, US
Rodney B. Walzel - Conroe TX, US
Christopher C. Beuershausen - Spring TX, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B010/46

US Classification:

175 57, 175428, 175431

Abstract:

A rotary drag bit and method for drilling subterranean formations, including a bit body being provided with at least one cutter thereon exhibiting reduced, or limited, exposure to the formation, so as to control the depth-of-cut of the at least one cutter, so as to control the volume of formation material cut per bit rotation, as well as to control the amount of torque experienced by the bit and an optionally associated bottomhole assembly regardless of the effective weight-on-bit are all disclosed. The exterior of the bit preferably includes a plurality of blade structures carrying at least one such cutter thereon and including a sufficient amount of bearing surface area to contact the formation so as to generally distribute an additional weight applied to the bit against the bottom of the borehole without exceeding the compressive strength of the formation rock.

US Patent:

7096978, Aug 29, 2006

Filed:

Aug 30, 2005

Appl. No.:

11/214524

Inventors:

Mark W. Dykstra - Kingwood TX, US
William Heuser - The Woodlands TX, US
Michael L. Doster - Spring TX, US
Jack T. Oldham - Willis TX, US
Terry D. Watts - Spring TX, US
Daniel E. Ruff - Kingwood TX, US
Rodney B. Walzel - Conroe TX, US
Christopher C. Beuershausen - Spring TX, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 10/46

US Classification:

175 57, 175428, 175431

Abstract:

A rotary drag bit and method for drilling subterranean formations, including a bit body being provided with at least one cutter thereon exhibiting reduced, or limited, exposure to the formation, so as to control the depth-of-cut of the at least one cutter, so as to control the volume of formation material cut per bit rotation, as well as to control the amount of torque experienced by the bit and an optionally associated bottomhole assembly regardless of the effective weight-on-bit are all disclosed. The exterior of the bit preferably includes a plurality of blade structures carrying at least one such cutter thereon and including a sufficient amount of bearing surface area to contact the formation so as to generally distribute an additional weight applied to the bit against the bottom of the borehole without exceeding the compressive strength of the formation rock.

US Patent:

7814990, Oct 19, 2010

Filed:

Aug 21, 2006

Appl. No.:

11/507279

Inventors:

Mark W. Dykstra - Kingwood TX, US
William Heuser - The Woodlands TX, US
Michael L. Doster - Spring TX, US
Jack T. Oldham - Willis TX, US
Terry D. Watts - Spring TX, US
Daniel E. Ruff - Kingwood TX, US
Rodney B. Walzel - Conroe TX, US
Christopher C. Beuershausen - Spring TX, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 10/46

US Classification:

175 57, 175428

Abstract:

A rotary drilling apparatus and method for drilling subterranean formations, including a body being provided with at least one cutter thereon exhibiting reduced, or limited, exposure to the formation, so as to control the depth-of-cut of the at least one cutter, so as to control the volume of formation material cut per rotation of the drilling apparatus, as well as to control the amount of torque experienced by the drilling apparatus and an optionally associated bottomhole assembly regardless of the effective weight-on-bit are all disclosed. The exterior of the drilling apparatus may include a plurality of blade structures carrying at least one such cutter thereon and including a sufficient amount of bearing surface area to contact the formation so as to generally distribute an additional weight applied to the drilling apparatus against the bottom of the borehole without exceeding the compressive strength of the formation rock.

US Patent:

8066084, Nov 29, 2011

Filed:

Oct 18, 2010

Appl. No.:

12/906713

Inventors:

Mark W. Dykstra - Kingwood TX, US
William Heuser - The Woodlands TX, US
Michael L. Doster - Spring TX, US
Jack T. Oldham - Willis TX, US
Terry D. Watts - Spring TX, US
Daniel E. Ruff - Kingwood TX, US
Rodney B. Walzel - Conroe TX, US
Christopher C. Beuershausen - Spring TX, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 10/46

US Classification:

175 57, 175428

Abstract:

A rotary drilling apparatus and method for drilling subterranean formations, including a body being provided with at least one cutter thereon exhibiting reduced, or limited, exposure to the formation, so as to control the depth-of-cut of the at least one cutter, so as to control the volume of formation material cut per rotation of the drilling apparatus, as well as to control the amount of torque experienced by the drilling apparatus and an optionally associated bottomhole assembly regardless of the effective weight-on-bit are all disclosed. The exterior of the drilling apparatus may include a plurality of blade structures carrying at least one such cutter thereon and including a sufficient amount of bearing surface area to contact the formation so as to generally distribute an additional weight applied to the drilling apparatus against the bottom of the borehole without exceeding the compressive strength of the formation rock.

US Patent:

8172008, May 8, 2012

Filed:

Sep 29, 2011

Appl. No.:

13/248895

Inventors:

Mark W. Dykstra - Kingwood TX, US
William Heuser - The Woodlands TX, US
Michael L. Doster - Spring TX, US
Jack T. Oldham - Willis TX, US
Terry D. Watts - Spring TX, US
Daniel E. Ruff - Kingwood TX, US
Rodney B. Walzel - Conroe TX, US
Christopher C. Beuershausen - Spring TX, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 10/46

US Classification:

175 57, 175428

Abstract:

A rotary drilling apparatus and method for drilling subterranean formations, including a body being provided with at least one cutter thereon exhibiting reduced, or limited, exposure to the formation, so as to control the depth-of-cut of the at least one cutter, so as to control the volume of formation material cut per rotation of the drilling apparatus, as well as to control the amount of torque experienced by the drilling apparatus and an optionally associated bottomhole assembly regardless of the effective weight-on-bit are all disclosed. The exterior of the drilling apparatus may include a plurality of blade structures carrying at least one such cutter thereon and including a sufficient amount of bearing surface area to contact the formation so as to generally distribute an additional weight applied to the drilling apparatus against the bottom of the borehole without exceeding the compressive strength of the formation rock.

US Patent:

6408958, Jun 25, 2002

Filed:

Oct 23, 2000

Appl. No.:

09/694518

Inventors:

Matthew R. Isbell - Houston TX
Rudolf C. O. Pessier - Houston TX
Michael L. Doster - Spring TX
Mark W. Dykstra - Kingwood TX
William H. Heuser - The Woodlands TX

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 1016

US Classification:

175431, 175432

Abstract:

A cutting assembly comprised of first and second superabrasive cutting elements including at least one rotationally leading cutting element having a cutting face oriented generally in a direction of intended rotation of a bit on which the assembly is mounted to cut a subterranean formation with a cutting edge at an outer periphery of the cutting face, and a rotationally trailing cutting element oriented substantially transverse to the direction of intended bit rotation and including a relatively thick superabrasive table configured to cut the formation with a cutting edge located between a beveled surface at the side of the superabrasive table and an end face thereof. A rotationally trailing cutting element may be associated with and disposed at a location on the bit at least partially laterally intermediate locations of two rotationally leading cutting elements. Drill bits equipped with the cutting assembly are also disclosed.