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:
Jul. 14, 2026

Filed:

Feb. 21, 2025
Applicant:

Schlumberger Technology Corporation, Sugar Land, TX (US);

Inventors:

Philip Trunk, Houston, TX (US);

Scott Mcdonough, Houston, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 10/16 (2006.01); E21B 10/14 (2006.01); E21B 10/50 (2006.01); E21B 10/52 (2006.01); E21B 10/55 (2006.01); E21B 10/56 (2006.01);
U.S. Cl.
CPC ...
E21B 10/16 (2013.01); E21B 10/14 (2013.01); E21B 10/50 (2013.01); E21B 10/52 (2013.01); E21B 10/55 (2013.01); E21B 10/56 (2013.01);
Abstract

A roller cone may include an innermost region having roller cone cutting elements arranged thereon such that the cutting elements may be closer to a radial axis of a drill bit. A roller cone may include a central region having roller cone cutting elements arranged thereon. The central region of a roller cone may also include multiple zones where the cutting element density within the central region and/or zones may vary between zones and/or regions. The cutting element density may be no less than 75% greater in one zone and/or region than the cutting element density of another zone and/or region.


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