Patents by Inventor Weixiang CUI

Weixiang CUI 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).

  • Viscoelastic surfactant having multiple hydrophobic and hydrophilic groups as fracturing fluids
    Patent number: 9856413
    Abstract: The present invention relates to viscoelastic fracturing fluids comprising one or more zwitterionic surfactants having multiple hydrophobic and hydrophilic groups. The viscoelastic fracturing fluids can be used to stimulate reservoir and increase oil and gas production.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: January 2, 2018
    Assignee: Petrochina Company Limited
    Inventors: Jiang Yang, Yongjun Lu, Baoshan Guan, Weixiang Cui, Xiaohui Qiu
  • VISCOELASTIC SURFACTANT HAVING MULTIPLE HYDROPHOBIC AND HYDROPHILIC GROUPS AS FRACTURING FLUIDS
    Publication number: 20150322334
    Abstract: The present invention relates to viscoelastic fracturing fluids comprising one or more zwitterionic surfactants having multiple hydrophobic and hydrophilic groups. The viscoelastic fracturing fluids can be used to stimulate reservoir and increase oil and gas production.
    Type: Application
    Filed: September 6, 2013
    Publication date: November 12, 2015
    Inventors: Jiang YANG, Yongjun LU, Baoshan GUAN, Weixiang CUI, Xiaohui QIU