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.
Patent No.:
Date of Patent:
Sep. 28, 2021
Filed:
Sep. 18, 2018
Thomas A. Badgwell, Clinton, NJ (US);
Paul E. Pastusek, The Woodlands, TX (US);
Krishnan Kumaran, Raritan, NJ (US);
David J. Schmidt, Morristown, NJ (US);
Thomas A. Badgwell, Clinton, NJ (US);
Paul E. Pastusek, The Woodlands, TX (US);
Krishnan Kumaran, Raritan, NJ (US);
David J. Schmidt, Morristown, NJ (US);
ExxonMobil Upstream Research Company, Spring, TX (US);
Abstract
A method and controller system are described for automatically tuning a controller of a drilling rig. The controller system includes a controller that determines a moving average of measured values, determines a moving standard deviation of the measured values, defines an outer zone of measured values with the determined moving average and the determined moving standard deviation, defines an inner zone of measured values with the determined moving average and the determined moving standard deviation, monitors the measured values for the occurrence of statistical events with respect to the outer zone and inner zone. Based on the detected statistical event, the controller adjusts the gain of the controller the based on the statistical event being associated with the outer zone or inner zone.