Patents by Inventor Bingzhong Shi

Bingzhong Shi 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).

  • Copolymer and preparation method and application thereof
    Patent number: 8623791
    Abstract: A copolymer and preparation method and application thereof are disclosed. The copolymer is random copolymer obtained from monomers consisting of acrylamide, acrylic acid, alkenyl sulfonate, 2-acrylamido-dodecyl sulfonate, p-styrene sulfonate or isoprene sulfonate and so on. The copolymer of present invention can be used as fluid loss additive and has good fluid loss properties, which would not make the drilling fluid thicken at high temperature of 200° C. and high salt conditions of saturated brine. It has a medium-pressure fluid loss after aging and rolling for 16 h at high temperature of 200° C., as measured in accordance with the American Petroleum Institute Standard Test at room temperature, and has good properties of high temperature-resisting and salt-resisting.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: January 7, 2014
    Assignees: China Petroleum & Chemical Corporation, Sinopec Research Institute of Petroleum Engineering
    Inventors: Xiaohua Yang, Lin Wang, Jiafen Li, Xiaolin Qian, Xianguang Wang, Sheng Li, Liwei Ren, Changming Su, Zhifa Wang, Guichuan Liu, Bingzhong Shi
  • COPOLYMER AND PREPARATION METHOD AND APPLICATION THEREOF
    Publication number: 20120077718
    Abstract: A copolymer and preparation method and application thereof are disclosed. The copolymer is random copolymer obtained from monomers consisting of acrylamide, acrylic acid, alkenyl sulfonate, 2-acrylamido-dodecyl sulfonate, p-styrene sulfonate or isoprene sulfonate and so on. The copolymer of present invention can be used as fluid loss additive and has good fluid loss properties, which would not make the drilling fluid thicken at high temperature of 200° C. and high salt conditions of saturated brine. It has a medium-pressure fluid loss after aging and rolling for 16 h at high temperature of 200° C., as measured in accordance with the American Petroleum Institute Standard Test at room temperature, and has good properties of high temperature-resisting and salt-resisting.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 29, 2012
    Applicants: SINOPEC RESEARCH INSTITUTE OF PETROLEUM ENGINEERING, China Petroleum & Chemical Corporation
    Inventors: Xiaohua YANG, Lin Wang, Jiafen Li, Xiaolin Qian, Xianguang Wang, Sheng Li, Liwei Ren, Changming Su, Zhifa Wang, Guichuan Liu, Bingzhong Shi