Patents by Inventor Faqi He

Faqi He 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 for evaluating gas well productivity with eliminating influence of liquid loading
    Patent number: 11499422
    Abstract: A method for evaluating a gas well productivity with eliminating an influence of liquid loading includes steps of: collecting basic data of a liquid loading gas well; according to a relative density of natural gas, a formation depth, and a casing pressure during a productivity test, determining a pressure generated by a static gas column in an annular space between a casing and a tubing from a well head to a bottomhole of the gas well, and obtaining a bottomhole pressure without liquid loading; according to a pseudo-pressure of a formation pore pressure, pseudo-pressures of the bottomhole pressure respectively under the conditions of liquid loading and no liquid loading, and a production rate under the condition of liquid loading, determining a production rate without liquid loading, and determining an absolute open flow rate with eliminating the influence of liquid loading.
    Type: Grant
    Filed: January 19, 2021
    Date of Patent: November 15, 2022
    Assignee: Exploration & Production Research Institute of SINOPEC North-China Oil & Gas Company
    Inventors: Huanquan Sun, Faqi He, Yongyi Zhou, Xiaobo Liu, Yongming He, Linsong Liu, Kui Chen, Tongsheng Cao, Yaonan Yu, Yan Chen
  • Method for evaluating gas well productivity with eliminating influence of liquid loading
    Publication number: 20210140314
    Abstract: A method for evaluating a gas well productivity with eliminating an influence of liquid loading includes steps of: collecting basic data of a liquid loading gas well; according to a relative density of natural gas, a formation depth, and a casing pressure during a productivity test, determining a pressure generated by a static gas column in an annular space between a casing and a tubing from a well head to a bottomhole of the gas well, and obtaining a bottomhole pressure under a condition of no liquid loading; according to a pseudo-pressure of a formation pore pressure, pseudo-pressures of the bottomhole pressure respectively under the conditions of liquid loading and no liquid loading, and a production rate under the condition of liquid loading, determining a production rate under the condition of no liquid loading, and determining an absolute open flow rate with eliminating the influence of liquid loading.
    Type: Application
    Filed: January 19, 2021
    Publication date: May 13, 2021
    Inventors: Huanquan Sun, Faqi He, Yongyi Zhou, Xiaobo Liu, Yongming He, Linsong Liu, Kui Chen, Tongshen Cao, Yaonan Yu, Yan Chen