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:
Jan. 26, 2021

Filed:

Jan. 25, 2018
Applicant:

National Technology & Engineering Solutions of Sandia, Llc, Albuquerque, NM (US);

Inventors:

Stephen Buerger, Albuquerque, NM (US);

Anirban Mazumdar, Albuquerque, NM (US);

Steven James Spencer, Albuquerque, NM (US);

Timothy James Blada, Albuquerque, NM (US);

Jiann-Cherng Su, Albuquerque, NM (US);

Elton K. Wright, Rio Rancho, NM (US);

Adam Foris, Albuquerque, NM (US);

David W. Raymond, Edgewood, NM (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 44/04 (2006.01); E21B 49/00 (2006.01);
U.S. Cl.
CPC ...
E21B 44/04 (2013.01); E21B 49/003 (2013.01);
Abstract

A system or method for drilling includes autonomously controlling a rotary or percussive drilling process as it transitions through multiple materials with very different dynamics. The method determines a drilling medium based on real-time measurements and comparison to prior drilling data, and identifies the material type, drilling region, and approximately optimal setpoint based on data from at least one operating condition. The controller uses these setpoints initially to execute an optimal search to maximize performance by minimizing mechanical specific energy.


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