Patents by Inventor Depei Shi

Depei 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).

  • Expansion tool assembly for expandable tubular
    Patent number: 11293254
    Abstract: Disclosed are an expansion tool assembly, comprising: an expandable tubular; a guide shoe partially inserted into and connected to the lower end of the expandable tubular; a sealing sleeve arranged in the expandable tubular and connected to the upper end of the guide shoe; an expansion assembly comprising an expansion cone and expansion seat disposed inside the expandable tubular, wherein the lower end of the expansion seat is connected with hooks, which can be rested on the upper end of the sealing sleeve; an upper joint that is connected to the upper end of the expansion seat and can be connected to a drill string. A force transfer path can be established via connection between the expansion seat and sealing sleeve, so that expandable tubular weight is borne on the drill string. Unintentional expansion of the expandable tubular, caused by interaction between expandable tubular and expansion cone, can be avoided.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: April 5, 2022
    Assignees: China National Petroleum Corporation, CNPC Engineering Technology R&D Company Limited
    Inventors: Quanli Zhang, Binggui Xu, Depei Shi, Hongwei Yin, Huijuan Guo, Guodong Zhan, Wanjun Li, Jianhua Guo, Tao Jia, Fei Han, Jianli Wang, Yingjie Zhu, Mingjie Lv, Yi Yang, Yongliang Yu, Zhitong Liu, Fuxiang Hou, Zhijian Hu
  • EXPANSION TOOL ASSEMBLY FOR EXPANDABLE TUBULAR
    Publication number: 20210396092
    Abstract: Disclosed are an expansion tool assembly, comprising: an expandable tubular; a guide shoe partially inserted into and connected to the lower end of the expandable tubular; a sealing sleeve arranged in the expandable tubular and connected to the upper end of the guide shoe; an expansion assembly comprising an expansion cone and expansion seat disposed inside the expandable tubular, wherein the lower end of the expansion seat is connected with hooks, which can be rested on the upper end of the sealing sleeve; an upper joint that is connected to the upper end of the expansion seat and can be connected to a drill string. A force transfer path can be established via connection between the expansion seat and sealing sleeve, so that expandable tubular weight is borne on the drill string. Unintentional expansion of the expandable tubular, caused by interaction between expandable tubular and expansion cone, can be avoided.
    Type: Application
    Filed: June 23, 2020
    Publication date: December 23, 2021
    Applicants: China National Petroleum Corporation, CNPC Engineering Technology R&D Company Limited
    Inventors: Quanli Zhang, Binggui Xu, Depei Shi, Hongwei Yin, Huijuan Guo, Guodong Zhan, Wanjun Li, Jianhua Guo, Tao Jia, Fei Han, Jianli Wang, Yingjie Zhu, Mingjie Lv, Yi Yang, Yongliang Yu, Zhitong Liu, Fuxiang Hou, Zhijian Hu