Patents by Inventor YUBAO GAO

YUBAO GAO 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 device for developing shale gas by tapered gradient pressure drop with multi-stage fractured horizontal well
    Patent number: 11136871
    Abstract: A method for developing shale gas by tapered gradient pressure drop with multi-stage fractured horizontal well is provided and the method comprises: acquiring fracturing crack form parameters of the multi-stage fractured horizontal well and reservoir characteristic parameters of nearby formation; dividing the formation near the shale gas multi-stage fractured horizontal well into strongly transformed area, weakly transformed area and matrix area; establishing pressure difference-flow models of gas-phase and water phase of the three areas respectively, and coupling the models of the three areas to establish production equation of the multi-stage fractured horizontal well; according to the production equation of the multi-stage fractured horizontal well, performing numerical simulation with different combinations of production pressure differences in the three stages of the multi-stage fractured horizontal well; and selecting a combination of production pressure differences with the greatest economic benefit as
    Type: Grant
    Filed: January 14, 2021
    Date of Patent: October 5, 2021
    Assignee: UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING
    Inventors: Weiyao Zhu, Zhiyong Song, Jianfa Wu, Shou Ma, Debin Kong, Ming Yue, Zhen Chen, Yubao Gao
  • Method and device for developing shale gas by tapered gradient pressure drop with multi-stage fractured horizontal well
    Publication number: 20210238973
    Abstract: The present disclosure provides a method and device for developing shale gas by tapered gradient pressure drop with multi-stage fractured horizontal well; the method comprises: acquiring fracturing crack form parameters of the multi-stage fractured horizontal well and reservoir characteristic parameters of nearby formation; dividing the formation near the shale gas multi-stage fractured horizontal well into strongly transformed area, weakly transformed area and matrix area; establishing pressure difference-flow models of gas-phase and water phase of the three areas respectively, and coupling the models of the three areas to establish production equation of the multi-stage fractured horizontal well; according to the production equation of the multi-stage fractured horizontal well, performing numerical simulation with different combinations of production pressure differences in the three stages of the multi-stage fractured horizontal well; and selecting a combination of production pressure differences with the
    Type: Application
    Filed: January 14, 2021
    Publication date: August 5, 2021
    Inventors: WEIYAO ZHU, ZHIYONG SONG, JIANFA WU, SHOU MA, DEBIN KONG, MING YUE, ZHEN CHEN, YUBAO GAO