Patents by Inventor Khalifah M. Amri

Khalifah M. Amri 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).

  • Drilling bottom hole methods for loss circulation mitigation
    Patent number: 11414933
    Abstract: A drilling bottom hole assembly for loss circulation mitigation includes a drill bit configured to drill a wellbore in a formation. The drill bit is attached to a drill string. The wellbore includes a high-loss circulation zone into which drilling fluid is lost during drilling the wellbore. An under reamer is attached to the drill string upstring of the drill bit. The under reamer is downhole of the high-loss circulation zone. The under reamer, in response to actuation, is configured to widen a diameter of the high-loss circulation zone. An expansion assembly is connected to the under reamer. The expansion assembly surrounds the drill string upstring of the under reamer. The expansion assembly is configured to cover the high-loss circulation zone after the diameter of the high-loss circulation zone is widened by the under reamer.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: August 16, 2022
    Assignee: Saudi Arabian Oil Company
    Inventors: Khalifah M. Amri, Abdulrahman Anwar Al Essa, Shaohua Zhou
  • DRILLING BOTTOM HOLE ASSEMBLY FOR LOSS CIRCULATION MITIGATION
    Publication number: 20210108466
    Abstract: A drilling bottom hole assembly for loss circulation mitigation includes a drill bit configured to drill a wellbore in a formation. The drill bit is attached to a drill string. The wellbore includes a high-loss circulation zone into which drilling fluid is lost during drilling the wellbore. An under reamer is attached to the drill string upstring of the drill bit. The under reamer is downhole of the high-loss circulation zone. The under reamer, in response to actuation, is configured to widen a diameter of the high-loss circulation zone. An expansion assembly is connected to the under reamer. The expansion assembly surrounds the drill string upstring of the under reamer. The expansion assembly is configured to cover the high-loss circulation zone after the diameter of the high-loss circulation zone is widened by the under reamer.
    Type: Application
    Filed: December 21, 2020
    Publication date: April 15, 2021
    Inventors: Khalifah M. Amri, Abdulrahman Anwar Al Essa, Shaohua Zhou
  • Drilling bottom hole assembly for loss circulation mitigation
    Patent number: 10900289
    Abstract: A drilling bottom hole assembly for loss circulation mitigation includes a drill bit configured to drill a wellbore in a formation. The drill bit is attached to a drill string. The wellbore includes a high-loss circulation zone into which drilling fluid is lost during drilling the wellbore. An under reamer is attached to the drill string upstring of the drill bit. The under reamer is downhole of the high-loss circulation zone. The under reamer, in response to actuation, is configured to widen a diameter of the high-loss circulation zone. An expansion assembly is connected to the under reamer. The expansion assembly surrounds the drill string upstring of the under reamer. The expansion assembly is configured to cover the high-loss circulation zone after the diameter of the high-loss circulation zone is widened by the under reamer.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: January 26, 2021
    Assignee: Saudi Arabian Oil Company
    Inventors: Khalifah M. Amri, Abdulrahman Anwar Al Essa, Shaohua Zhou
  • DRILLING BOTTOM HOLE ASSEMBLY FOR LOSS CIRCULATION MITIGATION
    Publication number: 20180187492
    Abstract: A drilling bottom hole assembly for loss circulation mitigation includes a drill bit configured to drill a wellbore in a formation. The drill bit is attached to a drill string. The wellbore includes a high-loss circulation zone into which drilling fluid is lost during drilling the wellbore. An under reamer is attached to the drill string upstring of the drill bit. The under reamer is downhole of the high-loss circulation zone. The under reamer, in response to actuation, is configured to widen a diameter of the high-loss circulation zone. An expansion assembly is connected to the under reamer. The expansion assembly surrounds the drill string upstring of the under reamer. The expansion assembly is configured to cover the high-loss circulation zone after the diameter of the high-loss circulation zone is widened by the under reamer.
    Type: Application
    Filed: January 5, 2017
    Publication date: July 5, 2018
    Inventors: Khalifah M. Amri, Abdulrahman Anwar Al Essa, Shaohua Zhou