Baker Hughes Corporation

US Synthetic Corporation

Baker Hughes Holdings LLC

Element Six Gmbh

Baker Hughes, a Ge Compnay, LLC

Chih C Lin

Terry J Koltermann

Don Quy Nguyen

Eric Charles Sullivan

Aaron J Dick

Danny Eugene Scott

Anton F Zahradnik

Gregory L Ricks

Scott Ray Schmidt

Theodore Edward Zaleski, Jr

Glenn R Zadrapa

Alejandro Flores

Anthony Albert DiGiovanni

Rudolf Carl Pessier

James Leslie Overstreet

Juan Miguel Bilen

Suresh G Patel

Michael L Doster

Mark E Morris

Chris M McCarty

Craig Hodges Cooley

Timothy Nathan Sexton

Klaus Tank

Christopher C Beuershausen

David Alexander Curry

Kyle Lamar Taylor

John F Bradford

Ronald L Jones

Dan E Scott

Scott Shiqiang Shu

Rudolf Carl Otto Pessier

Clement David Van Der Riet

Raul E Lema

Denis S Kopecki

Louise F Van Staden

Gregory B Swanepoel

Siu-Wah Wai

Dragan Vukovic

Stuart Hall

Terry J Kolterman

Ronald Hales

Gordon A Tibbitts

Steven R Radford

James Andy Oxford

Jon David Schroder

Gregory W Peterson

Daniel E Scott

Robert D Bradshaw

Anthony A Digiovanni

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

An earth boring bit has a bit body with a depending bearing pin, a cone rotatably mounted on the bearing pin, a seal gland between the cone and the bearing pin, and a seal assembly located in the seal gland. The seal assembly includes an annular metallic spring encircling the bearing pin. The spring has a geometric center line that extends in a circle around the bearing pin. The spring is elastically deformable in radial directions relative to the center line. An elastomeric layer is located on an exterior side of the spring and is biased by the spring against a surface of the seal gland.

Composite metallic elastomeric sealing components for roller cone drill bits

A downhole tool comprises a mechanical joint, and a diamond-like coating over at least a portion of a surface of at least one component of the mechanical joint, the diamond-like coating having a thickness greater than 10 micrometers. Methods of manufacturing a mechanical joint of a downhole tool comprise disposing a diamond-like coating on at least a portion of a surface of a component of the mechanical joint of the downhole tool to a thickness of at least 10 microns and at a temperature less than about 200&#xb0; C.

Downhole tools having mechanical joints with enhanced surfaces

Downhole tools for earth-boring applications may include a component of a steel material and including a bore. An inner surface defining the bore may be treated with a surface treatment. The surface treatment may include a nitrided region having nitrogen diffused into the steel material and a ceramic material adjacent to the nitrided region; the ceramic material defining the inner surface. Methods of making downhole tools for earth-boring applications may involve exposing a component of the downhole tool to an elevated temperature to heat the component in a nitrogen-rich environment. Nitrogen may be diffused into a steel material of the component and a nitrided region may be formed at one or more surfaces of the component. A ceramic material may be coated on the nitrided region of the component.

Nitrogen- and ceramic-surface-treated components for downhole motors and related methods

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

A drilling motor and method of making a drill motor are disclosed. The drilling motor includes a stator having a bore therethrough and inner surface and a rotor having an outer surface configured to be disposed in the stator. The outer surface of the rotor comes in contact with the inner surface of the stator. At least one of the inner surface of the stator and the outer surface of the rotor includes a coating of a diamond-like carbon material.

Downhole motor with diamond-like carbon coating on stator and/or rotor and method of making said downhole motor

In one aspect, a drill bit is disclosed that in one embodiment may include a bit body, a rotating cutter on the bit body, and a metallic seal between the bit body and the rotating cutter that includes a first seal member, a second seal member having a first end in sealing contact with the first seal member, a second end fixed relative to the first end and a bias member between the first end and the second end that adjusts the load on the first seal member in response to external load applied on the drill bit.

Drill bit with a dynamic metal seal

Bearings for downhole tools including a first bearing member and a second bearing member, at least one of the first and second bearing members having a channel formed therein. Methods of cooling bearings of downhole tools comprise flowing a fluid within a channel formed in at least one bearing member. Heat is transferred from at least the at least one bearing member to the fluid. The fluid is flowed away from the at least one bearing member.

Downhole tools including bearings and methods of forming same

A backup ring for a face seal in a roller cone bit is configured to resist wear from drilling fluids present adjacent exposed faces of the backup ring. Portions are removed from an exposed end face in a variety of shapes while the hardness of the material is increased. The removal of material offsets an increase in force that would be transmitted through the backup ring on face seal assembly due to flexing. A spring can optionally be included in the removed material location. Another way is to increase the edge density of all or part of the exposed edges while leaving the interior portions unaffected by using electron beam radiation to increase the crosslink density or by other techniques that allow a unitary structure with a more durable edge region.

Enhanced backup ring edge features for metal face seal in roller cone drill bits

Enhanced backup ring features for metal face seal in roller cone drill bits

Downhole motors include a stator, which may be formed from a steel material and comprise a bore. At least one surface of the stator may be treated with a surface treatment. The surface treatment includes a nitrided region comprising nitrogen diffused into the steel material and a ceramic material adjacent to the nitrided region; the ceramic material defining an interior surface of the stator defining the bore. Methods of making downhole motors may include exposing a stator to an elevated temperature to heat the stator in a nitrogen-rich environment. Nitrogen may be diffused into a steel material of the stator and a nitrided region may be formed at one or more surfaces of the stator. The stator may be cooled. The stator may be removed from the nitrogen-rich environment. A ceramic material may be coated on the nitrided region of the stator.

Bearings for downhole tools, downhole tools incorporating such bearings, and methods of cooling such bearings

A roller cone bit is provided that includes a wear resistant coating applied to a bearing shaft, which is attached to a roller cone. The wear resistant coating can be a tungsten/tungsten carbide composite applied by chemical vapor deposition.

Earth boring bit with wear resistant bearing and seal

Growing community of inventors

Spring, TX, United States of America

Chih C Lin