Patents by Inventor Xuesong Xing

Xuesong Xing 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).

  • Star-shaped polyacrylamide copolymer and preparation method thereof and drilling fluid including the copolymer
    Patent number: 10774256
    Abstract: A star-shaped polyacrylamide copolymer and a preparation method thereof are provided, as well as a drilling fluid containing the star-shaped polyacrylamide copolymer. Only the star-shaped polyacrylamide copolymer is added into the drilling fluid; under a high-temperature environment, the filtration volume of the drilling fluid can be reduced, the high-temperature rheological property of the drilling fluid is improved, and the pressure loss of a circulation system of the drilling fluid is reduced.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: September 15, 2020
    Assignee: China University of Geosciences, Beijing
    Inventors: Zhihua Luo, Xuesong Xing, Peizhi Yu, Yu Wang, Bairu Xia, Ziming Wang
  • STAR-SHAPED POLYACRYLAMIDE COPOLYMER AND PREPARATION METHOD THEREOF AND DRILLING FLUID INCLUDING THE COPOLYMER
    Publication number: 20190119550
    Abstract: A star-shaped polyacrylamide copolymer and a preparation method thereof are provided, as well as a drilling fluid containing the star-shaped polyacrylamide copolymer. Only the star-shaped polyacrylamide copolymer is added into the drilling fluid; under a high-temperature environment, the filtration volume of the drilling fluid can be reduced, the high-temperature rheological property of the drilling fluid is improved, and the pressure loss of a circulation system of the drilling fluid is reduced.
    Type: Application
    Filed: July 25, 2018
    Publication date: April 25, 2019
    Inventors: Zhihua Luo, Xuesong Xing, Peizhi Yu, Yu Wang, Bairu Xia, Ziming Wang