Patents by Inventor Qihua RAN

Qihua RAN 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).

  • 4D quantitative and intelligent diagnosis method and system for spatio-temporal evolution of oil-gas reservoir damage types and extent
    Patent number: 11686190
    Abstract: A 4D quantitative and intelligent diagnosis method for spatio-temporal evolution of oil-gas reservoir damage types and extent includes: determining a characteristic parameter characterizing reservoir damage by each of a plurality of factors based on a spatio-temporal evolution simulation equation of reservoir damage by each of the plurality of factors; and determining an effective characteristic parameter characterizing the damage extent of the reservoir based on the characteristic parameter characterizing reservoir damage by each of the plurality of factors. The method quantitatively simulate the characteristic parameters of reservoir damage caused by the various factors and a total characteristic parameter of the reservoir damage.
    Type: Grant
    Filed: July 13, 2022
    Date of Patent: June 27, 2023
    Assignees: China University of Petroleum (Beijing), CNPC Chuanqing Drilling Engineering Company Limited, CNPC ENGINEERING TECHNOLOGY R&D COMPANY LIMITED
    Inventors: Guancheng Jiang, Yinbo He, Tengfei Dong, Chunyao Peng, Lili Yang, Xiaohu Luo, Xuwu Luo, Xing Liang, Bin Tan, Yong Wang, Daqi Fu, Tie Geng, Qihua Ran, Xiaobo Liu, Rongchao Cheng, Zenglin Wang, Gang Chen, Honghao Zhu, Yizheng Li, Li Zhao, Kaixiao Cui
  • 4D QUANTITATIVE AND INTELLIGENT DIAGNOSIS METHOD AND SYSTEM FOR SPATIO-TEMPORAL EVOLUTION OF OIL-GAS RESERVOIR DAMAGE TYPES AND EXTENT
    Publication number: 20230026538
    Abstract: The invention relates to the technical field of oilfield exploration, and discloses a 4D quantitative and intelligent diagnosis method and system for spatio-temporal evolution of oil-gas reservoir damage types and extent. The method includes: determining a characteristic parameter characterizing reservoir damage by each of a plurality of factors based on a spatio-temporal evolution simulation equation of reservoir damage by each of the plurality of factors; and determining an effective characteristic parameter characterizing the damage extent of the reservoir based on the characteristic parameter characterizing reservoir damage rby each of the plurality of factors. The invention can quantitatively simulate the characteristic parameters of reservoir damage caused by the various factors and a total characteristic parameter of the reservoir damage.
    Type: Application
    Filed: July 13, 2022
    Publication date: January 26, 2023
    Applicants: China University of Petroleum (Beijing), CNPC Chuanqing Drilling Engineering Company Limited, CNPC ENGINEERING TECHNOLOGY R&D COMPANY LIMITED
    Inventors: Guancheng JIANG, Yinbo HE, Tengfei DONG, Chunyao PENG, Lili YANG, Xiaohu LUO, Xuwu LUO, Xing LIANG, Bin TAN, Yong WANG, Daqi FU, Tie GENG, Qihua RAN, Xiaobo LIU, Rongchao CHENG, Zenglin WANG, Gang CHEN, Honghao ZHU, Yizheng LI, Li ZHAO, Kaixiao CUI