Patents by Inventor Shanyan Zhang

Shanyan Zhang 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).

  • Borehole wall resistance increasing apparatus for improving energy utilization rate of injection gas
    Patent number: 11428065
    Abstract: A method and an apparatus for oil production by increasing resistance of borehole wall for improving an energy utilization rate of injection gas includes injecting gas into an oil reservoir so that a gas pressure in the oil reservoir reaches an initial oil reservoir pressure. The initial oil seepage pressure is present at a position where the inside of the production well is in communication with the oil reservoir. The initial oil seepage pressure is less than the initial oil reservoir pressure. The method also includes monitoring gas production and oil production of the production well and increasing the initial oil seepage pressure to an increased oil seepage pressure when a ratio of the gas production to the oil production is higher than a predetermined ratio. The increased oil seepage pressure is smaller than the initial oil reservoir pressure.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: August 30, 2022
    Assignee: Petrochina Company Limited
    Inventors: Xinglong Chen, Qingxin Song, Zhidong Yang, Shanyan Zhang, Zemin Ji, Yulong Pu
  • METHOD AND APPARATUS FOR OIL PRODUCTION BY INCREASING RESISTANCE OF BOREHOLE WALL WITH IMPROVED ENERGY UTILIZATION RAE OF INJECTION GAS
    Publication number: 20210040827
    Abstract: A method and an apparatus for oil production by increasing resistance of borehole wall for improving an energy utilization rate of injection gas includes injecting gas into an oil reservoir so that a gas pressure in the oil reservoir reaches an initial oil reservoir pressure. The initial oil seepage pressure is present at a position where the inside of the production well is in communication with the oil reservoir. The initial oil seepage pressure is less than the initial oil reservoir pressure. The method also includes monitoring gas production and oil production of the production well and increasing the initial oil seepage pressure to an increased oil seepage pressure when a ratio of the gas production to the oil production is higher than a predetermined ratio. The increased oil seepage pressure is smaller than the initial oil reservoir pressure.
    Type: Application
    Filed: March 20, 2020
    Publication date: February 11, 2021
    Inventors: Xinglong Chen, Qingxin Song, Zhidong Yang, Shanyan Zhang, Zemin Ji, Yulong Pu