Patents by Inventor Xinwang Song

Xinwang Song 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).

  • Preparation method for fumaric acid pour point depressant for crude oil
    Patent number: 11384185
    Abstract: A fumaric acid pour point depressant for crude oil and a preparation method therefor are provided. The fumaric acid pour point depressant is obtained by polymerizing a first prepolymer, a second prepolymer, a third monomer and a fourth monomer, where the first prepolymer is obtained by pre-polymerizing vinyl acetate and a first monomer; and the second prepolymer is obtained by pre-polymerizing fumaric acid and a second monomer.
    Type: Grant
    Filed: January 19, 2022
    Date of Patent: July 12, 2022
    Assignees: DESHI ENERGY TECHNOLOGY GROUP CO., LTD., SHANDONG DESHI CHEMICAL COMPANY LIMITED
    Inventors: Shizhang Cui, Zongming Xiu, Liming Wang, Xinwang Song, Ruimei Gao, Yunfu Hou, Zhifeng Lv
  • Oil displacement agent and process for preparing the same
    Patent number: 9080096
    Abstract: The present invention relates to a new type of oil displacement agent and the process for preparing the same. The oil displacement agent is formed of a polyacrylamide-based polymer characterized by a partly crosslinked and partly branched structure, wherein said polyacrylamide-based polymer is obtained by aqueous copolymerization of acrylamide and N,N-dimethylaminoethyl methacrylate as a functional monomer, in the presence of a redox initiator system.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: July 14, 2015
    Assignees: GEOSCIENCE RESEARCH INSTITUTE OF SHENGLI OILFIELD BRANCH, SINOPEC GEOSCIENCE RESEARCH INSTITUTE, SICHUAN UNIVERSITY
    Inventors: Huanquan Sun, Zhenquan Li, Xulong Cao, Guangsu Huang, Xinwang Song, Xiaohong Cui, Kun Liu, Jing Zheng, Xiaoyan Chen, Zhiqing Su, Zuming Jiang, Jinrong Wu
  • NOVEL OIL DISPLACEMENT AGENT AND PROCESS FOR PREPARING THE SAME
    Publication number: 20110178257
    Abstract: The present invention relates to a new type of oil displacement agent and the process for preparing the same. The oil displacement agent is formed of a polyaclylamide-based polymer characterized by a partly crosslinked and partly branched structure, wherein said polyacrylamide-based polymer is obtained by aqueous copolymerization of acrylamide and N,N-dimethylaminoethyl methacrylate as a functional monomer, in the presence of a redox initiator system.
    Type: Application
    Filed: January 14, 2011
    Publication date: July 21, 2011
    Applicants: Geoscience Research Institute of Shengli Oilfield Branch, SINOPEC, Sichuan University
    Inventors: Huanquan Sun, Zhenquan Li, Xulong Cao, Guangsu Huang, Xinwang Song, Xiaohong Cui, Kun Liu, Jing Zheng, Xiaoyan Chen, Zhiqing Su, Zuming Jiang, Jinrong Wu