Patents by Inventor Julien Christian Valery Marek

Julien Christian Valery Marek has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Sensor fusion and model calibration for bit attitude prediction
    Patent number: 11326441
    Abstract: 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.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: May 10, 2022
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Qiuying Gu, Robert Darbe, Julien Christian Valery Marek, Umut Zalluhoglu
  • Determining control inputs for drilling a wellbore trajectory in a geologic formation
    Patent number: 10883341
    Abstract: 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.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: January 5, 2021
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Nazli Demirer, Umut Zalluhoglu, Julien Christian Valery Marek, Robert Darbe