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:
Dec. 17, 2024
Filed:
Sep. 02, 2022
Baker Hughes Oilfield Operations Llc, Houston, TX (US);
William A. Hered, Houston, TX (US);
Baker Hughes Oilfield Operations LLC, Houston, TX (US);
Abstract
Systems and methods for determining the orientation of the toolface of a rotating downhole tool using multiple sensors that measure different parameters related to the orientation of the toolface, where outputs of the different sensors are used by a Kalman filter which generates accurate predictions of the toolface orientation (state) at each of a series of time steps. The Kalman filter generates a state prediction based on a physical model and a previous state, and updates the prediction based on a received sensor output. Another sensor output is fed through a phase locked loop to generate a sine wave at the fundamental frequency of the sensor signal. The sine wave is used to synchronize another sensor signal that is provided to the Kalman filter for further adjustment of the state prediction.