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:
Jan. 18, 2022
Filed:
Apr. 29, 2015
Halliburton Energy Services, Inc., Houston, TX (US);
Venkata Madhukanth Vadali, Houston, TX (US);
Jason D. Dykstra, Spring, TX (US);
Xiaoqing Ge, The Woodlands, TX (US);
Yuzhen Xue, Humble, TX (US);
Xingyong Song, Houston, TX (US);
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
A method of estimating a state of a rotary steerable drilling system comprising applying a control input to a rotary steerable drilling system, sensing an actual output of the rotary steerable drilling system, inputting the control input into a mathematical model of the rotary steerable drilling system, receiving an estimated output of the rotary steerable drilling system from the mathematical model, generating an error compensation signal based on a difference between the actual output and the estimated output, and applying the error compensation signal to the mathematical model.