Baker Hughes Corporation

Baker Hughes Oilfield Operations LLC

Baker Hughes Holdings LLC

Element Six Gmbh

Baker Huges Incorporated

Baker Hughes, a Ge Compnay, LLC

Michael L Doster

Mark William Dykstra

Jack Thomas Oldham

Matthew Ray Isbell

Christopher C Beuershausen

William Heuser

Rudolf Carl Pessier

Theodore Edward Zaleski, Jr

Daniel E Ruff

Terry D Watts

Rodney B Walzel

Danny Eugene Scott

Anthony Albert DiGiovanni

Eric E McClain

Juan Miguel Bilen

Chih C Lin

Suresh G Patel

David Gavia

Jason E Hoines

Jarod DeGeorge

Nicholas J Lyons

Derek L Nelms

Rudolf C O Pessier

Robert M Welch

Chad T Jurica

John C Thomas

Danielle V Roberts

David M Schnell

Lane E Snell

Bart T McDonald

James Leslie Overstreet

Jeffrey B Lund

Don Quy Nguyen

Paul E Pastusek

Marcus R Skeem

Nedret Can

Matthew J Meiners

Michael Steven Damschen

Kenneth E Gilmore

Floyd C Felderhoff

Stephen Duffy

Mark E Morris

Arthur A Chaves

Roger William Nigel Nilen

Umesh Prasad

Roland Illerhaus

Ronny D McCormick

James A Norris

Danielle M Fuselier

Habib Saridikmen

Michael P Ohanian

Ryan J Hanford

Mark E Anderson

John R Spaar

James C Green

Mumtaz Ball

Anthony A Digiovanni

Rudolph CO Pessier

Jarod Degeorge

Matt Isbell

John Clayton Thomas

A downhole tool comprising a bit body and a plurality of blades. Each blade having at least one cutting element disposed within the blade. Each cutting element comprising a substrate and a poly crystalline diamond material affixed to the substrate at an interface. The poly crystalline diamond material comprising a raised cutting surface comprising at least two cutting edges, a recess in a center of the raised cutting surface, and transition surfaces between the at least two cutting edges of the raised cutting surface and a side surface of the cutting element. The disclosure also includes a method of manufacturing a downhole tool comprising: forming a drill bit, blades, and cutting elements. Forming the cutting elements comprises forming a raised cutting surface comprising at least two cutting edges, forming a recess in a center of the raised cutting surface and forming transition surfaces between the raised cutting surface and a side surface of the cutting element.

Cutting element with improved mechanical efficiency

A cutting element for downhole drilling and related earth-boring tool for downhole drilling. The cutting element may include a substrate and a polycrystalline diamond material affixed to the substrate at an interface. The polycrystalline diamond material may include a raised cutting surface having at least two cutting edges, and first transition surfaces between the at least two cutting edges of the raised cutting surface and a side surface of the cutting element. The first transition surfaces may include multiple planar surfaces.

Cutting elements for earth-boring tools, methods of manufacturing earth-boring tools, and related earth-boring tools

An earth-boring tool having at least one cutting element with a multi-friction cutting face provides for the steering of formation cuttings as the cuttings slide across the cutting face. The multi-friction cutting element includes a diamond table bonded to a substrate of superabrasive material. The diamond table has a cutting face formed thereon with a cutting edge extending along a periphery of the cutting face. The cutting face has a first area having an average surface finish roughness less than an average surface finish roughness of a second area of the cutting face, the two areas separated by a boundary having a proximal end proximate a tool crown and a distal end remote from the tool crown.

Methods of forming cutting elements with cutting faces exhibiting multiple coefficients of friction, and related methods

A polycrystalline super hard construction has a body of PCD material and a plurality of interstitial regions between inter-bonded diamond grains forming the PCD material. The body also has a first region substantially free of a solvent/catalyzing material which extends a depth from a working surface into the body of PCD material. A second region remote from the working surface includes solvent/catalyzing material in a plurality of the interstitial regions. A chamfer extends between the working surface and a peripheral side surface of the body of PCD material. The chamfer has a height which is the length along a plane perpendicular to the plane along which the working surface extends between the point of intersection of the chamfer with the working surface and the point of intersection of the chamfer and the peripheral side surface of the body of PCD material. The depth of the first region is greater than the height of the chamfer. A first length along a plane extending from the point of intersection of the chamfer and the peripheral side edge of the PCD body at an angle of between around 65 to 75 degrees to the interface between the first and second regions is between around 60% to around 300% of the depth of the first region.

Polycrystalline super hard construction and a method for making same

Polycrystalline compact tables for cutting elements include regions of grains of super hard material. One region of grains ('first grains') and another region of grains ('second grains') have different properties, such as different average grain sizes, different super hard material volume densities, or both. The region of first grains and the region of second grains adjoin one another at grain interfaces that may include a curved portion in a vertical cross-section of the table. In some embodiments, discrete regions of the first grains may be vertically disposed between discrete regions of the second grains. As such, the tables have ordered grain regions of different properties that may inhibit delamination and crack propagation through the table when used in conjunction with a cutting element. Methods of forming the tables include forming the regions and subjecting the grains to a high-pressure, high-temperature process to sinter the grains.

Polycrystalline compacts for cutting elements, related earth-boring tools, and related methods

Earth-boring tools having cutting elements with cutting faces exhibiting multiple coefficients of friction, and related methods

Polycrystalline compact tables for cutting elements and methods of fabrication

A rotary drag bit includes a primary cutter row comprising at least one primary cutter mounted on a blade, at least some cutters in the primary cutter row having a portion of a cutting surface thereof covered by a portion of the blade. A backup cutter row comprising at least one cutter may also be included, and at least a portion of a cutting surface of at least some cutters in the backup cutter row is covered by a portion of the blade. Enhanced support for cutters is provided against impact loading.

Cutting element placement on a fixed cutter drill bit to reduce diamond table fracture

A rotary drag bit for drilling subterranean formations includes a bit body having a face extending from a centerline to a gage. A plurality of blades may be disposed on the face, and may generally extend radially outwardly toward the gage. The bit may further include a plurality of discrete impregnated cutting posts, each of which may extend outwardly from an associated blade. Each discrete impregnated cutting post angles generally toward a front edge of the associated blade and generally toward the intended direction of rotation of the bit. The rotary drag bit may further include a plurality of matrix pockets disposed on the blades. The discrete impregnated cutting posts may be housed within corresponding matrix pockets.

Impregnated bit with improved cutting structure and blade geometry

Cutting elements for earth-boring tools may comprise a substrate, a polycrystalline table comprising superhard material secured to the substrate at an end of the substrate, and a non-planar interface defined between the polycrystalline table and the substrate. The non-planar interface may comprise a cross-shaped groove extending into one of the substrate and the polycrystalline table and L-shaped grooves extending into the other of the substrate and the polycrystalline table proximate corners of the cross-shaped groove. Transitions between surfaces defining the non-planar interface may be rounded. Methods of forming cutting elements for earth-boring tools may comprise forming a substrate to have a non-planar end. The non-planar end of the substrate may be provided adjacent particles of superhard material to impart an inverse shape to the particles. The particles may be sintered to form a polycrystalline table, with a non-planar interface defined between the substrate and the polycrystalline table.

Cutting elements including non-planar interfaces, earth-boring tools including such cutting elements, and methods of forming cutting elements

Impregnation bit with improved cutting structure and blade geometry

Systems, program product, and methods are provided which include analyzing the drillability of a subterranean formation and a database of performance characteristics for drilling bits to facilitate bit design optimization and selection for that formation. Using component subterranean formation data, computer models can be generated for the drillability of a target section in terms of physical, mechanical, and micro-structural properties, and for postulated suitable drilling bit performance characteristics based on physical, mechanical, and micro-structural properties of the target section. The drilling bit performance characteristics are then updated by quantifying effects of the drilling system to be employed. Each performance characteristic can be normalized and plotted on its own axis for easy comparison. Next, a candidate drilling bit design is selected from a library of computer models of drilling bit characteristics for a suite of drilling bit designs. An optimization of the drilling bit design may be also performed.

System, program product, and related methods for bit design optimization and selection

A drill bit includes a bit body having a face on which two different types of cutters are disposed, the first type being cutting elements suitable for drilling at least one subterranean formation and the second type being at least one of an abrasive cutting structure and an abrasive cutting element suitable for drilling through a casing shoe, reamer shoe, casing bit, casing or liner string and cementing equipment or other components, as well as cement. Methods of forming earth-boring tools include disposing at least one abrasive cutting structure or element on the earth-boring tool. Methods of drilling with earth-boring tools including drilling with at least one abrasive cutting structure or element.

Earth-boring tools including abrasive cutting structures and related methods

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.

Drilling apparatus with reduced exposure of cutters and methods of drilling

Growing community of inventors

Spring, TX, United States of America

Michael L Doster