Xr Downhole LLC

Xr Reserve LLC

Ashmin Holding LLC

Pi Tech Innovations LLC

Other

Rival Downhole Tools Lc

Ashmin, L.c.

Xr Dynamics LLC

Michael V Williams

David P Miess

Gregory Prevost

William W King

Michael R Reese

Edward C Spatz

Gunther H H Von Gynz-Rekowski

Russell Wayne Koenig

Chaitanya P Challa

Frank R Vignal

William Christian Herben

Kevin James Rudy

Gunther Hh Von Gynz-Rekowski

Gunther H-h Von Gynz-Rekowski

James Dudley

Russell Koening

Gunther H-H Von Gynz-Rekowski

William C Herben

A radial bearing assembly is provided. The radial bearing assembly includes polycrystalline diamond elements, each having an engagement surface in sliding engagement with an opposing engagement surface. The opposing engagement surface includes a diamond reactive material. The radial bearing assembly may be deployed in a variety of components and applications, including in rotor and stator assemblies. Also provided are methods of use of the radial bearing assembly, as well as methods of designing the radial bearing assembly.

Polycrystalline diamond radial bearing

A downhole tool for use in a downhole drill string is provided. The downhole tool includes a rotor movably coupled within a stator, and a drive shaft movably coupled within a bearing housing. The drive shaft has a first end coupled with the rotor and a second end coupled with a drill bit. Bearing assemblies interfaces engagement between the drive shaft and the bearing housing, including polycrystalline diamond elements, each with an engagement surface, and an opposing engagement surface of a non-superhard metal.

Downhole drilling tool with a polycrystalline diamond bearing

A cam follower is provided. The cam follower includes a polycrystalline diamond element, including an engagement surface. The engagement surface of the polycrystalline diamond element is positioned on the cam follower for sliding engagement with an opposing engagement surface of a cam. The cam includes at least some of a diamond reactive material.

Cam follower with polycrystalline diamond engagement element

Methods, systems, and apparatus for imparting and limiting hypocycloidal, lateral, and torsional forces onto drill bits are provided, including hypocycloidal bearings for limiting hypocycloidal motion, lateral impulse mechanisms for imparting lateral movement to a drill bit, and torsional impulse mechanisms for imparting torsional movement to a drill bit. The methods systems, and apparatus may decrease friction, increase drilling efficiency, and provide additional benefits to drilling systems.

Dynamic drilling systems and methods

An apparatus is provided that includes a diamond bearing surface positioned in sliding engagement with an opposing bearing surface of a diamond reactive material. The opposing bearing surface is hardened via a material treatment.

Material treatments for diamond-on-diamond reactive material bearing engagements

Power transmission systems are provided that include polycrystalline diamond power transmission surfaces that are engaged with diamond solvent-catalyst power transmission surfaces. The power transmission systems may be or include gears, universal joints, or other power transmission systems or components.

Polycrystalline diamond power transmission surfaces

An apparatus for boring a wellbore, including a bit body having a first end, an inner cavity, and a second end. The first end is connected to a workstring that is configured to deliver a rotational force to the bit body. The inner cavity contains a profile having a first radial cam surface. The second end includes a working face containing a cutting member. The apparatus also includes a pilot bit rotatively connected within the inner cavity. A second radial cam surface is contained on a first end of the pilot bit. The first and second radial cam surfaces are operatively configured to deliver a hammering force. A second end of the pilot bit may include an engaging surface configured to engage a formation surrounding the wellbore. The bit body rotates relative to the pilot bit.

Boring apparatus and method

Growing community of inventors

Conroe, TX, United States of America

Michael V Williams