Baker Hughes Corporation

US Synthetic Corporation

Smith International, Inc.

Element Six Gmbh

Schlumberger Technology Corporation

Eastman Christensen Company

Baker Hughes, a Ge Compnay, LLC

Jeffrey B Lund

Craig Hodges Cooley

Timothy Nathan Sexton

Danny Eugene Scott

Marcus R Skeem

S Barrett Peterson

Redd H Smith

Christopher F Johnson

Jair Jahaziel Gonzalez

David Paul Miess

Matthew Ray Isbell

Van Jordan Brackin

Matthew J Meiners

Robert A Laing

Eric Charles Sullivan

Steven R Radford

Nicholas J Lyons

Trent Neil Butcher

Eric E McClain

John Hewitt Liversage

Moosa Mahomed Adia

Terry D Watts

John C Thomas

Christopher S Charles

Thomas M Harris

Lester I Clark

Matthew D Mumma

W Gregory Presley

D Jay Clinkscales

Rudolf Carl Pessier

Michael L Doster

Jack Thomas Oldham

Feng Yu

Christopher C Beuershausen

Rustom K Mody

Daniel R Hart

Mark E Morris

Roland Illerhaus

Roy E Swanson

James A Norris

Trung Quoc Huynh

Michael P Ohanian

John R Spaar

Gregory Caron

Lawrence Allen Sinor

Sharlynn Davis

Ryan Worth Eldredge

Calvin Stowe, Ii

Laster I Clark

Polycrystalline diamond constructions comprise a diamond body attached with a substrate during high pressure/high temperature processing, and include a modified reaction zone interposed between the body and substrate that is engineered to minimize or eliminate unwanted back diffusion of carbon from the diamond body into the substrate during the high pressure/high temperature processing.

Polycrystalline diamond constructions with modified reaction zone

A cutting assembly for use in a drill bit has an ovoid insert including an ultrahard material. The ovoid insert is cast in a matrix such that the matrix surrounds at least part of the ovoid insert, limiting movement of the ovoid insert. Material is removed from the top surface and sidewall of the cutting assembly to produce a cutting edge.

Mechanical locking of ovoid cutting element with carbide matrix

PCD constructions as disclosed comprise a ultra-hard body attached with a metallic substrate along a substrate extending between the body and the substrate. The construction includes a protective feature or element that is configured to protect a metal rich region or zone existing in the construction from unwanted effects of corrosion or erosion. The protective element extends from the body over the interface and along a portion of the substrate and may be integral with the.

Polycrystalline diamond constructions with protective element

A cutting element assembly for use on a rotary drill bit for forming a borehole in a subterranean formation. A cutting element assembly includes a cutting element having a substrate. The cutting element assembly additionally includes a superabrasive material bonded to the substrate. The substrate extends from an end surface to a back surface. A base member is also coupled to the back surface of the substrate. Additionally, a recess is defined in the base member and a structural element is coupled to the base member. The cutting element assembly also includes a biasing element configured to selectively bias the structural element.

Cutting element apparatuses and drill bits so equipped

A rotary drill bit is disclosed. The rotary drill bit may include a bit body, a cutting pocket defined in the bit body, and a cutting element rotatably coupled to the bit body. The cutting element may be positioned at least partially within the cutting pocket. The rotary drill bit may also include a rotation-inducing member adjacent to the cutting element for inducing rotation of the cutting element relative to the cutting pocket. The rotation-inducing member may include a resilient member or a vibrational member. The rotary drill bit may also include protrusions extending from an interior of the cutting pocket adjacent to an outer diameter of the cutting element. A method of drilling a formation is also disclosed.

Drill bit having rotational cutting elements and method of drilling

Rotary drag bits comprise a body comprising a face at a leading end of the body. An abrasive-impregnated cutting structure is located at the face of the body. The abrasive-impregnated cutting structure comprises abrasive particles dispersed within a matrix material. The abrasive-impregnated cutting structure exhibits an anisotropic wear resistance. The wear resistance varies at least substantially continuously within the abrasive-impregnated cutting structure.

Rotary drag bits including abrasive-impregnated cutting structures

Cutting elements for earth-boring tools may generate a shear lip at a wear scar thereon during cutting. A diamond table may exhibit a relatively high wear resistance, and an edge of the diamond table may be chamfered, the combination of which may result in the formation of a shear lip. Cutting elements may comprise multi-layer diamond tables that result in the formation of a shear lip during cutting. Earth-boring tools include such cutting elements. Methods of forming cutting elements may include selectively designing and configuring the cutting elements to form a shear lip. Methods of cutting a formation using an earth-boring tool include cutting the formation with a cutting element on the tool, and generating a shear lip at a wear scar on the cutting element. The cutting element may be configured such that the shear lip comprises diamond material of the cutting element.

Cutting elements configured to generate shear lips during use in cutting, earth-boring tools including such cutting elements, and methods of forming and using such cutting elements and earth-boring tools

A subterranean drilling system may include a drill string and a rotary drill bit coupled to the drill string. The rotary drill bit may include a bit body and a cutting element coupled to the bit body, with the cutting element being structured to rotate in response to torque applied to the cutting element. The system also may include a cam assembly coupled to the drill string, a cam follower assembly in contact with a cam surface of the cam assembly, and a torque-applying structure coupled to the cam follower assembly. The torque-applying structure may be configured to apply torque to the cutting element in response to relative rotation between the cam assembly and the cam follower assembly.

Cutting element apparatuses, drill bits including same, methods of cutting, and methods of rotating a cutting element

A method of treating polycrystalline diamond includes providing a leaching agent within a vessel, placing a polycrystalline diamond body within the vessel such that the polycrystalline diamond body contacts the leaching agent, and applying a vacuum pressure in the vessel at an interval, where the interval includes at least one cycle, each cycle having a duration measured from the time the vacuum pressure is applied to the time the vacuum pressure is removed, and a frequency at which the at least one cycle is conducted.

Method to improve efficiency of PCD leaching

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Cottonwood Heights, UT, United States of America

Jeffrey B Lund