Patents by Inventor Dongmin JIA

Dongmin JIA 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).

  • Amphiphilic block polymer ultralow-permeability agent and intelligent temporary plugging type water-based drilling fluid
    Patent number: 11578251
    Abstract: The invention relates to the technical field of oil and gas drilling, and discloses an amphiphilic block polymer ultralow-permeability agent and an intelligent temporary plugging type water-based drilling fluid. The ultralow-permeability agent contains a structural unit provided by styryl hydrophobic monomer, maleic anhydride and acrylamide; the drilling fluid contains two or more of water, sodium bentonite, Pac-Lv, the ultralow-permeability agent, calcium carbonate, one-way plugging agent, white asphalt and barite which are stored in a mixed manner or independently stored.
    Type: Grant
    Filed: March 16, 2022
    Date of Patent: February 14, 2023
    Assignee: China University of Petroleum (Beijing)
    Inventors: Yinbo He, Guancheng Jiang, Lili Yang, Tengfei Dong, Bin Tan, Rongchao Cheng, He Shi, Jianguo Zhang, Tie Geng, Jiansheng Luo, Dongmin Jia, Kai Wang, Chunlin Xie, Wuquan Li, Xiaoqing Li
  • AMPHIPHILIC BLOCK POLYMER ULTRALOW-PERMEABILITY AGENT AND INTELLIGENT TEMPORARY PLUGGING TYPE WATER-BASED DRILLING FLUID
    Publication number: 20220204833
    Abstract: The invention relates to the technical field of oil and gas drilling, and discloses an amphiphilic block polymer ultralow-permeability agent and an intelligent temporary plugging type water-based drilling fluid. The ultralow-permeability agent contains a structural unit provided by styryl hydrophobic monomer, maleic anhydride and acrylamide; the drilling fluid contains two or more of water, sodium bentonite, Pac-Lv, the ultralow-permeability agent, calcium carbonate, one-way plugging agent, white asphalt and barite which are stored in a mixed manner or independently stored.
    Type: Application
    Filed: March 16, 2022
    Publication date: June 30, 2022
    Applicant: China University of Petroleum (Beijing)
    Inventors: Yinbo He, Guancheng Jiang, Lili Yang, Tengfei Dong, Bin Tan, Rongchao Cheng, He Shi, Jianguo Zhang, Tie Geng, Jiansheng Luo, Dongmin Jia, Kai Wang, Chunlin Xie, Wuquan Li, Xiaoqing Li
  • AMPHIPHILIC BLOCK POLYMER ULTRALOW-PERMEABILITY AGENT AND INTELLIGENT TEMPORARY PLUGGING TYPE WATER-BASED DRILLING FLUID
    Publication number: 20220049148
    Abstract: An ultralow-permeability agent contains a structural unit provided by styryl hydrophobic monomer, maleic anhydride and acrylamide; the drilling fluid contains two or more of water, sodium bentonite, Pac-Lv, the ultralow-permeability agent, calcium carbonate, one-way plugging agent, white asphalt and barite which are stored in a mixed manner or independently stored. When the amphiphilic block polymer provided by the invention is used as the ultralow-permeability agent of the intelligent temporary plugging type water-based drilling fluid, the self-adaptive characteristic is realized; according to the amphiphilic block polymer, temporary plugging layer gaps formed in pore and throats by plugging materials in drilling fluid can be fully filled under the condition that the sizes and the distribution of the pore and throats of reservoirs are not required to be clear, so that the permeability of temporary plugging layer is greatly reduced, ultralow-permeability is realized.
    Type: Application
    Filed: June 17, 2021
    Publication date: February 17, 2022
    Applicant: China University of Petroleum (Beijing)
    Inventors: Yinbo HE, Guancheng JIANG, Lili YANG, Tengfei DONG, Bin TAN, Rongchao CHENG, He SHI, Jianguo ZHANG, Tie GENG, Jiansheng LUO, Dongmin JIA, Kai WANG, Chunlin XIE, Wuquan LI, Xiaoqing LI