The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 28, 2024

Filed:

Apr. 14, 2023
Applicant:

Xr Reserve Llc, Houston, TX (US);

Inventors:

Gregory Prevost, Spring, TX (US);

Michael V. Williams, Conroe, TX (US);

Edward C. Spatz, Spring, TX (US);

Michael R. Reese, Houston, TX (US);

William W. King, Houston, TX (US);

David P. Miess, Magnolia, TX (US);

Assignee:

XR Reserve LLC, Houston, TX (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 4/00 (2006.01); E21B 10/573 (2006.01);
U.S. Cl.
CPC ...
E21B 4/003 (2013.01); E21B 10/573 (2013.01);
Abstract

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.


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