Halliburton Energy Services, Inc.

Julien Christian Valery Marek

Robert Phillip Darbe

Umut Zalluhoglu

Nazli Demirer

Qiuying Gu

Techniques for estimating a current inclination and azimuth of a drill bit of a wellbore drilling system are described. The estimates for the current inclination and azimuth are generated using measurements obtained for one or more parameters associated with the drilling process performed by the drill bit and taken over a range of the wellbore falling within a sliding window having a predefined distance D extending along the wellbore.

Sensor fusion and model calibration for bit attitude prediction

One or more wellbore trajectories and respective control inputs are determined which meet a wellbore trajectory model, a constraint, and a wellbore length. A wellbore trajectory and respective control input from the one or more wellbore trajectories and respective control inputs are then identified which minimize a cost function associated with the performance objective. The control input associated with this wellbore trajectory are output to a drilling system for drilling a wellbore.

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Houston, TX, United States of America

Julien Christian Valery Marek