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Control systems and methods to enable autonomous drilling

United States Patent

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January 26, 2021
View the Complete Patent at the US Patent & Trademark Office
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.
15/ 880,109
January 25, 2018
E21B 44/04 (20060101)E21B 49/00 (20060101)
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was developed under Contract No. DENA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in this invention.