Xr Lateral LLC

Xr Reserve LLC

Xr Downhole LLC

Pi Tech Innovations LLC

Edward C Spatz

Gregory Prevost

Michael R Reese

David P Miess

William W King

Michael V Williams

James Dudley

Michael V William

Bearing assemblies for use in low-temperature conditions are provided. The bearing assemblies include polycrystalline diamond bearing elements having diamond bearing surfaces and opposing bearing elements having metal bearing surfaces. The metal bearing surfaces include a metal that contains at least 2 weight percent of a diamond solvent-catalyst based on a total weight of the metal. The metal is ductile at temperatures ranging from −150° C. to −253° C. The metal bearing surface is in sliding contact with the diamond bearing surface.

Polycrystalline diamond-on-metal bearings for use in cryogenic conditions

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

Bearings and valves are provided that include diamond engagement surfaces that are engaged with opposing, metal engagement surfaces that include diamond solvent-catalyst. Also provided are methods of making and using the bearings and valves.

Diamond surface bearings for sliding engagement with metal surfaces

Bearings assemblies are provided that include polycrystalline diamond bearing surfaces that are engaged with opposing, metal bearing surfaces that include more than trace amounts of diamond solvent-catalyst. In the bearings, the opposing bearing surface is slidingly engaged with the polycrystalline diamond bearing surface along a diamond contact area of the polycrystalline diamond bearing surface, and the polycrystalline diamond bearing surface is a continuous surface along the diamond contact area. Also provided are methods of making and using the bearing assemblies.

Continuous diamond surface bearings for sliding engagement with metal surfaces

Directional drilling is an extremely important area of technology for the extraction of oil and gas from earthen formations. The technology of the present application relates to improved non-stabilizer guidance positioning members for directional drilling assemblies and for drill strings. It also relates to an improved method for analyzing the fit and engagement of a directional drilling assembly in curved and straight wellbores in order to produce improved guidance positioning members. It also relates to a method of designing guidance positioning members for directional drilling. It also relates to drilling directional wellbores using the guidance positioning members of the present technology.

Method, apparatus by method, and apparatus of guidance positioning members for directional drilling

The present disclosure includes sucker rod strings, pipe protectors, and tool joints having polycrystalline diamond elements positioned thereon to interface engagement with other surfaces in downhole applications. The polycrystalline diamond elements can be positioned on sucker rod guides, sucker rod couplers, pipe protectors, and tool joints.

Sucker rod couplings and tool joints with polycrystalline diamond elements

Directional drilling is an extremely important area of technology for the extraction of oil and gas from earthen formations. The technology of the present application relates to improved positioning elements for directional drilling assemblies. It also relates to drilling directional wellbores using the guidance positioning members of the present technology.

Bottom hole assemblies for directional drilling

A drilling machine for a wellbore is provided. The drilling machine may include a dynamic lateral pad that is movable between an extended and retracted position. In the extended position, the pad moves the drill bit in a direction for drilling. The drilling machine may include a dynamic lateral cutter that is movable between an extended and retracted position. In at least the extended position, the cutter engages the wellbore and removes formation. The drilling machine may include a monolithic or integral drill bit/drive shaft to reduce the distance between a positive displacement motor and a distal end of the monolithic or integral drill bit/drive shaft. The drilling machine may include separate cutting structures that have different rotational speeds and can further utilize the integral drill bit/drift shaft and/or a bent housing that generates an off-axis rotation which helps optimize the formation removal in the center area of the wellbore.

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Spring, TX, United States of America

Edward C Spatz