Patents by Inventor Alexander Mathew Keller

Alexander Mathew Keller 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).

  • METHODS FOR ESTIMATING DOWNHOLE WEIGHT ON BIT AND RATE OF PENETRATION USING ACCELERATION MEASUREMENTS
    Publication number: 20230279767
    Abstract: Methods and compositions for estimating one or more downhole qualities of a drilling apparatus by obtaining axial acceleration data. The axial acceleration data may be acquired by measuring an axial acceleration of a bottom hole assembly. The axial acceleration may then be used to estimate one or more of a downward weight on a drill bit of the drilling apparatus or a rate of penetration of the drill bit.
    Type: Application
    Filed: March 3, 2022
    Publication date: September 7, 2023
    Inventors: Alexander Mathew Keller, Ketan C. Bhaidasna, Jian Wu, Robert P. Darbe, Julien Christian Marck, Nazli Demirer, Umut Zalluhoglu, Tianheng Feng, Dongmei Chen
  • PROBABILISTIC MODEL CALIBRATION AND ESTIMATION FOR DRILLING STEERING CONTROL
    Publication number: 20210103843
    Abstract: A method for calibrating a steering model may comprise estimating an initial condition for one or more variables in the steering model and calibrating the steering model with a Markov Chain Monte Carlo Simulation (MCMC). A drilling system may comprise a bottom hole assembly, a drill string connected to the bottom hole assembly, and an information handling system connected to the bottom hole assembly. The information handling system may be configured to process one or more measurements from the bottom hole assembly, calibrate a steering model based at least in part on the one or more measurements, adjust a control logic based at least in part on the steering model, and adjust the bottom hole assembly based at least in part on the control logic.
    Type: Application
    Filed: July 13, 2020
    Publication date: April 8, 2021
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Alexander Mathew Keller, Vy Pho, Umut Zalluhoglu, Robert P. Darbe