Patents by Inventor Yongyi Zhou

Yongyi Zhou 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).

  • Publication number: 20240093604
    Abstract: A method for determining a productivity of a coalbed methane well without shutting down the well includes steps of: obtaining coalbed methane basic data; based on PVT experimental data, determining a relationship table between a pressure and a coalbed methane deviation factor, and a relationship table between the pressure and a pseudo-pressure; recording daily gas production rates, bottomhole flow pressures, and cumulative gas productions at each stabilized flow pressure test moment in at least three different production stages; determining formation pressures corresponding to each stabilized flow pressure test moment based on a material balance equation; according to the formation pressures, the bottomhole flow pressures and the production rates, determining coefficients in a deliverability equation of the coalbed methane well for determining the deliverability equation; substituting the formation pressures and the bottomhole flow pressures into the deliverability equation for obtaining corresponding product
    Type: Application
    Filed: December 3, 2023
    Publication date: March 21, 2024
    Inventors: Bo Hu, Xiaobo Liu, Yongyi Zhou, Kui Chen, Yongming He, Linsong Liu, Yaonan Yu, Jiawei Zhang, Yongheng Wang
  • Publication number: 20230229981
    Abstract: A star rating management method for deployment and implementation of gas field development wells first establishes the expression for estimating the gas well initial production rate and the dimensionless production curve; then determines the annual production of the new well for every year during the evaluation period and determines the internal rate of return of the new gas well. If the internal rate of return fails to meet the requirement, the deployment location and construction technology of the new well are re-optimized. Corresponding stars rating are determined according to the internal rate of return of the gas wells. The new well is drilled according to the deployment location that can meet the economic benefit requirements. After the gas well is drilled, a more detailed fracturing design is carried out, and the internal rate of return of the gas well and the star rating of development benefit are redetermined.
    Type: Application
    Filed: March 27, 2023
    Publication date: July 20, 2023
    Inventors: Bo Hu, Xiaobo Liu, Yongyi Zhou, Yongming He, Linsong LIU, KUI Chen, Tongsheng Cao, Yaonan Yu, Yan Chen
  • 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
  • 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
  • Patent number: 8532969
    Abstract: A numerical simulation method for characterizing fluid channeling along large-aperture fractures of reservoirs relates to the field of petroleum reservoir development research and computational fluid dynamics. The conventional method can not effectively represent the rapid fluid channeling along large-aperture fractures. Aiming at solving the above technical problem, an advanced method is provided in the present invention. In the invented method, the geometric similarity and hydraulic similarity treatments of large-aperture fractures can be made simultaneously, moreover, the traditional numerical simulation software was improved to be an unstructured grid simulator. Therefore, the method of the present invention can effectively simulate the rapid fluid channeling along large-aperture fractures, consequently it can ensure the reliability of the simulation results and provide reasonable reference for the adjustment and optimization of oil field development plans.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: September 10, 2013
    Assignee: Geo-science Research Institute of Shengli Oil Field Co. Ltd. of Sinopec
    Inventors: Yang Li, Yongyi Zhou, Duanping Wang, Xiantai Liu, Shuling Sui, Shiming Zhang, Yong Wang, Haibo Su, Yajuan Dong, Yanhu Chen, Yong Song
  • Publication number: 20120173220
    Abstract: A numerical simulation method for characterizing fluid channeling along large-aperture fractures of reservoirs relates to the field of petroleum reservoir development research and computational fluid dynamics. The conventional method can not effectively represent the rapid fluid channeling along large-aperture fractures. Aiming at solving the above technical problem, an advanced method is provided in the present invention. In the invented method, the geometric similarity and hydraulic similarity treatments of large-aperture fractures can be made simultaneously, moreover, the traditional numerical simulation software was improved to be an unstructured grid simulator. Therefore, the method of the present invention can effectively simulate the rapid fluid channeling along large-aperture fractures, consequently it can ensure the reliability of the simulation results and provide reasonable reference for the adjustment and optimization of oil field development plans.
    Type: Application
    Filed: March 4, 2011
    Publication date: July 5, 2012
    Inventors: Yang Li, Yongyi Zhou, Duanping Wang, Xiantai Liu, Shuling Sui, Shiming Zhang, Yong Wang, Haibo Su, Yajuan Dong, Yanhu Chen, Yong Song