David K. Truax - Houston TX Thomas Walter Oldham - The Woodlands TX Carl Edward Penuel - Houston TX Duane R. Van Waes - Cypress TX
Assignee:
Smith International, Inc. - Houston TX
International Classification:
E21B 1046
US Classification:
175434, 175426, 175428, 175435
Abstract:
An earth-boring bit comprises a bit body bit body in which are mounted a plurality of cutting structures inserts, wherein at least a portion of the cutting structures comprise diamond-impregnated inserts having a total thermal exposure of less than 25 minutes above 1500Â F. The diamonds can be natural or synthetic diamond. The bit body itself may be diamond-impregnated, in which case it is preferred that the diamonds in the inserts make up at least 40% of the total diamond in the bit.
Cutting Element With Canted Design For Improved Braze Contact Area
Ronald K. Eyre - Orem UT Madapusi K. Keshavan - Sandy UT David Truax - Houston TX
Assignee:
Smith International, Inc. - Houston TX
International Classification:
E21B 1046
US Classification:
175432
Abstract:
The present invention provides a cutting element having a cylindrical body having a canted end face on which is formed a ultra hard material layer. One or a plurality of transition layers may be provided between the ultra hard material layer and the cutting element body.
Bi-Centered Drill Bit Having Improved Drilling Stability, Mud Hydraulics And Resistance To Cutter Damage
Timothy P. Beaton - The Woodlands TX David Truax - Houston TX
Assignee:
Smith International, Inc. - Houston TX
International Classification:
E21B 1040
US Classification:
175391, 175399
Abstract:
A bi-center drill bit includes pilot and reaming blades affixed to a body at azimuthally spaced locations. The blades have PDC cutters attached at selected positions. In one aspect, the pilot blades form a section having length along the bit axis less than about 80 percent of a diameter of the section. In another aspect, selected pilot blades and corresponding reaming blades are formed into single spiral structures. In another aspect, shapes and positions of the blades and inserts are selected so that lateral forces exerted by the reaming and the pilot sections are balanced as a single structure. Lateral forces are preferably balanced to within 10 percent of the total axial force on the bit. In another aspect, the center of mass of the bit is located less than about 2. 5 percent of the diameter of the bit from the axis of rotation.
David Truax - Houston TX Timothy P. Beaton - The Woodlands TX
Assignee:
Smith International, Inc. - Houston TX
International Classification:
E21B 1000
US Classification:
175398, 1754051, 175434
Abstract:
A drill bit including a bit body and a plurality of blades formed in the bit body. The blades are formed, at least in part, from a base matrix material that on one embodiment is impregnated with abrasive particles. One side of the bit is formed, with respect to its axis of rotation, to a smaller radius than the opposite side of the bit. The asymmetry of the bit enables the bit to drill a larger diameter hole than a pass through diameter of the bit. The opposite side defines a contact angle between the bit and a formation. In one embodiment, the contact angle is at least 140 degrees. In one embodiment, a plurality of inserts may be located on the blades to provide gage protection. In another embodiment, the bit may also include a gage sleeve that helps keep the bit stabilized in the wellbore.
Drill Bit Having Diamond Impregnated Inserts Primary Cutting Structure
David K. Truax - Houston TX Thomas Walter Oldham - The Woodlands TX Carl Edward Penuel - Houston TX Duane R. Van Waes - Cypress TX
Assignee:
Smith International, Inc. - Houston TX
International Classification:
E21B 1046
US Classification:
175434, 175426, 175428, 175435
Abstract:
An earth-boring bit comprises a bit body bit body in which are mounted a plurality of cutting structures inserts, wherein at least a portion of the cutting structures comprise diamond-impregnated inserts having a total thermal exposure of less than 25 minutes above 1500Â F. The diamonds can be natural or synthetic diamond. The bit body itself may be diamond-impregnated, in which case it is preferred that the diamonds in the inserts make up at least 40% of the total diamond in the bit.
Graham Mensa-Wilmot - Houston TX David K. Truax - Houston TX
Assignee:
Smith International, Inc. - Houston TX
International Classification:
E21B 1036
US Classification:
175434, 175374
Abstract:
A variety of large diameter PDC cutters for use in drill bits are disclosed. Specifically, various PDC cutters having a diameter between 19. 0 mm and 25. 0 mm are disclosed. The various PDC cutters disclosed include an elliptical PDC cutter, wherein a major diameter of the elliptical cutter is selected from a range of 19. 0 mm to 25. 0 mm, a circular PDC cutter, wherein a diameter of the circular cutter falls between 19. 0 mm and 25. 0 mm, and a non-planar substrate cutter, wherein a diameter of the non-planar cutter falls between 19. 0 mm and 25. 0 mm. Additionally, the thickness of the diamond table is increased as compared to prior art PDC cutters. The increase in diamond table thickness results in improved durability and performance.
Carl M. Hoffmaster - Houston TX, US David K. Truax - Houston TX, US Timothy P. Beaton - The Woodlands TX, US
Assignee:
Smith International, Inc. - Houston TX
International Classification:
E21B007/28 E21B010/32
US Classification:
175263, 175406
Abstract:
An expandable reaming tool including at least two reamer pads connected to a tool body. The reamer pads are adapted to be displaced between a retracted position and an expanded position. At least one spiral blade is formed on at least one reamer pad. A plurality of cutting elements are disposed on the at least one spiral blade. An expandable reaming tool including at least two reamer pads connected to a tool body. The reamer pads are adapted to be displaced between a retracted position and an expanded position. At least one blade is formed on the at least two reamer pads. A plurality of cutting elements are disposed on the at least one blade and at least one gage protection element is disposed on a gage surface of the at least one blade. The plurality of cutting elements are arranged so as to enable the expandable reaming tool to backream a formation in a wellbore.
Method For Drilling A Wellbore Using A Bi-Center Drill Bit
Timothy P. Beaton - The Woodlands TX, US Thomas L. Young - Perth, AU David K. Truax - Houston TX, US
Assignee:
Smith International, Inc. - Houston TX
International Classification:
E21B010/26
US Classification:
175171, 175 57
Abstract:
A method is disclosed for drilling a wellbore. The method includes operating a turbine-type mud motor having a bi-center drill bit coupled to it, and applying an axial force to the bit which is selected so that the bit drills in a directionally stable manner. In one embodiment, the motor is a steerable motor operated to maintain a selected trajectory of the wellbore.
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Monday in front of the American Legion Clubhouse on W. Pearl Street and proceed onto Main Street, Muehl Street, Ivory Street, Factory Street and back onto Main. It will conclude at Depot Street, where the program's featured speaker will be Staff Sgt. David Truax of the Wisconsin Army National Guard.
Ball State University - Urban Planning, Indiana Wesleyan University - MBA
About:
I'm from Mooresville, Indiana. I went to Ball State University and Indiana Wesleyan University. My goal is to get the play that I wrote back "on it's feet."
Bragging Rights:
I wrote a three act musical called Acorns. It was produced during the spring of 1994 by a non-profit group. I'm starting my blog to network with the theater community.
David Truax (1965-1969), Peter Ganapes (1954-1958), Ray Price (1948-1952), Brian Rank (1966-1970), Charles Caster (1963-1967), Russell Burns (1950-1954)
David Truax (1978-1982), Dawn Park (1984-1988), Phil Clark (1958-1962), Sarah Milton (1973-1977), Robert Scott (1963-1967), Deanna Latrielle (1995-1999)