Patents by Inventor Guowe Zhou

Guowe Zhou 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).

  • Encapsulating agent and preparing method thereof, and drilling fluid for petroleum drilling
    Patent number: 9845421
    Abstract: The present invention relates to the technical field of petroleum drilling, specifically provides an encapsulating agent and preparing method thereof, and a drilling fluid, wherein the encapsulating agent comprises an acrylamide monomer structure unit represented by formula (I), an anti-temperature monomer structure unit represented by formula (II) and an cation monomer structure unit represented by formula (III); wherein R1 and R2 are each independently H, and linear or branched alkyl of C1-C15, and R3 is H or the linear or branched alkyl of C1-C5. The drilling fluid provided in the present invention has strong inhibition property and stable rheological property.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: December 19, 2017
    Assignee: China University of Petroleum (East China)
    Inventors: Zhengsong Qiu, Xin Zhao, Hanyi Zhong, Wei'an Huang, Yongjun Zhang, Guowe Zhou