Patents by Inventor Youjun FU

Youjun FU 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).

  • Apparatus and method for measuring apparent permeability of tight rock core
    Patent number: 10801943
    Abstract: The present application provides an apparatus and a method for measuring apparent permeability of a tight rock core, the apparatus comprises: a rock core holder, a first high-pressure injection pump, a second high-pressure injection pump, a micro-differential pressure meter, a micro-flow meter, a first pressure control unit, a second pressure control unit, a first valve, a second valve, a third valve, and a fourth valve; the first pressure control unit comprises: a first pressure-resistant piston container and a second pressure-resistant piston container, both of which are divided into an upper cavity and a lower cavity by a piston, the upper cavities of the first pressure-resistant piston container and the second pressure-resistant piston container are filled with gases and communicate with each other, and the lower cavity of the first pressure-resistant piston container is filled with pump pressure-transmission liquids, and the lower cavity of the second pressure-resistant piston container is filled with ex
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: October 13, 2020
    Assignees: CHINA UNIVERSITY OF PETROLEUM-BEIJING, BEIJING SHIDA RONGZHI SCI. AND TECH. LTD. CO.
    Inventors: Xiang'an Yue, Weiqing An, Xuegang Feng, Lijuan Zhang, Jirui Zou, Xin Fang, Youjun Fu, Wei Fang, Junbin Zhang, Wenhao Tian, Jueshun Zhao, Bin Kong, Shengxu Zhao
  • APPARATUS AND METHOD FOR MEASURING APPARENT PERMEABILITY OF TIGHT ROCK CORE
    Publication number: 20180372611
    Abstract: The present application provides an apparatus and a method for measuring apparent permeability of a tight rock core, the apparatus comprises: a rock core holder, a first high-pressure injection pump, a second high-pressure injection pump, a micro-differential pressure meter, a micro-flow meter, a first pressure control unit, a second pressure control unit, a first valve, a second valve, a third valve, and a fourth valve; the first pressure control unit comprises: a first pressure-resistant piston container and a second pressure-resistant piston container, both of which are divided into an upper cavity and a lower cavity by a piston, the upper cavities of the first pressure-resistant piston container and the second pressure-resistant piston container are filled with gases and communicate with each other, and the lower cavity of the first pressure-resistant piston container is filled with pump pressure-transmission liquids, and the lower cavity of the second pressure-resistant piston container is filled with ex
    Type: Application
    Filed: June 22, 2018
    Publication date: December 27, 2018
    Inventors: Xiang'an YUE, Weiqing AN, Xuegang FENG, Lijuan ZHANG, Jirui ZOU, Xin FANG, Youjun FU, Wei FANG, Junbin ZHANG, Wenhao TIAN, Jueshun ZHAO, Bin KONG, Shengxu ZHAO
  • Oral irrigator or water flosser
    Patent number: D952134
    Type: Grant
    Filed: September 2, 2020
    Date of Patent: May 17, 2022
    Inventors: Guoming Wang, Yongchao Zhu, Youjun Fu, Chenghai Zhu