Patents by Inventor Feifei Zhang, JR.

Feifei Zhang, JR. 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).

  • Method and system for analyzing a drill string stuck pipe event
    Patent number: 11352869
    Abstract: A method includes receiving a plurality of drilling parameters from a drilling operation, wherein the plurality of drilling parameters. The drilling parameters include a cuttings bed height and a friction factor between a drill string and a wellbore. The method further includes applying the plurality of drilling parameters to a friction model. The friction model utilizes a function of the cuttings bed height to determine a comprehensive friction factor. The comprehensive friction factor is applied to the plurality of drilling parameters to determine a required torque or hook load of the drill string. The method further includes providing an indication of a stuck pipe event.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: June 7, 2022
    Assignee: Landmark Graphics Corporation
    Inventors: Feifei Zhang, Jr., Dale E. Jamison, Yi Pan
  • Method And System For Analyzing A Drill String Stuck Pipe Event
    Publication number: 20200173268
    Abstract: A method includes receiving a plurality of drilling parameters from a drilling operation, wherein the plurality of drilling parameters. The drilling parameters include a cuttings bed height and a friction factor between a drill string and a wellbore. The method further includes applying the plurality of drilling parameters to a friction model. The friction model utilizes a function of the cuttings bed height to determine a comprehensive friction factor. The comprehensive friction factor is applied to the plurality of drilling parameters to determine a required torque or hook load of the drill string. The method further includes providing an indication of a stuck pipe event.
    Type: Application
    Filed: August 18, 2017
    Publication date: June 4, 2020
    Inventors: Feifei Zhang, JR., Dale E. Jamison, Yi Pan