Patents by Inventor Mingmin He

Mingmin He 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).

  • Expandable liner hanger
    Patent number: 10858917
    Abstract: The present invention discloses an expandable liner hanger system comprising a central pipe and an expandable pipe, with an expansion cone provided therebetween the central pipe and expandable pipe in a way that the expansion cone is movable along the central pipe, so that the expandable pipe is expanded; wherein, the expansion cone comprises an expansion cone seat move along the central pipe, and an expansion cone sleeve fitted over the expansion cone seat, the connection between the expansion cone seat and the expansion cone sleeve is configured in a way that the expansion cone sleeve can move upward together with the expansion cone seat along the central pipe so that the expandable pipe is expanded, and the central pipe can drive the expansion cone seat to disengage from the expansion cone sleeve.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: December 8, 2020
    Assignee: CNPC ENGINEERING TECHNOLOGY R&D COMPANY LIMITED
    Inventors: Quanli Zhang, Hongwei Yin, Wanjun Li, Huijuan Guo, Guojun Liu, Binggui Xu, Gang Chen, Yingjie Zhu, Gang Wang, Shaohua Zhou, Zhitong Liu, Yongliang Yu, Mingmin He, Tao Jia, Jianli Wang, Mingjie Lv, Fei He
  • Expandable Liner Hanger
    Publication number: 20200332629
    Abstract: The present invention discloses an expandable liner hanger system comprising a central pipe and an expandable pipe, with an expansion cone provided therebetween the central pipe and expandable pipe in a way that the expansion cone is movable along the central pipe, so that the expandable pipe is expanded; wherein, the expansion cone comprises an expansion cone seat move along the central pipe, and an expansion cone sleeve fitted over the expansion cone seat, the connection between the expansion cone seat and the expansion cone sleeve is configured in a way that the expansion cone sleeve can move upward together with the expansion cone seat along the central pipe so that the expandable pipe is expanded, and the central pipe can drive the expansion cone seat to disengage from the expansion cone sleeve.
    Type: Application
    Filed: April 19, 2019
    Publication date: October 22, 2020
    Applicant: CNPC Engineering Technology R&D Company Limited
    Inventors: Quanli Zhang, Hongwei Yin, Wanjun Li, Huijuan Guo, Guojun Liu, Binggui Xu, Gang Chen, Yingjie Zhu, Gang Wang, Shaohua Zhou, Zhitong Liu, Yongliang Yu, Mingmin He, Tao Jia, Jianli Wang, Mingjie Lv, Fei He