Patents by Inventor Xiliang LI

Xiliang LI 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).

  • Apparatus for tripping oil pipe and system for automatic well workover
    Patent number: 9732570
    Abstract: An apparatus for tripping oil pipe and a system for automatic well workover comprises an elevator transfer device for transferring an elevator connected with an oil pipe, the elevator transfer device being structured for enabling continuous, automatic tripping operations of the oil pipe. The elevator transfer device comprises a lifting assembly used for lifting and releasing an oil pipe engaged with the elevator, and an elevator transport assembly used for transferring an elevator at a wellhead and/or an elevator on the lifting assembly. The apparatus for tripping oil pipe can lower the labor intensity and improve operation safety.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: August 15, 2017
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM ENGINEERING, SHENGLI OIL FIELD, SINOPEC
    Inventors: Minxuan Wang, Guangqi Gao, Lei Zhang, Huihui Song, Zeng Fu, Hui Zhang, Zhengquan Cheng, Bin Wei, Xiliang Li, Huawen Shu, Qiuhan Su, Qianwen Tang
  • Apparatus for Tripping Oil Pipe and System for Automatic Well Workover
    Publication number: 20150197997
    Abstract: An apparatus for tripping oil pipe and a system for automatic well workover comprises an elevator transfer device for transferring an elevator connected with an oil pipe, the elevator transfer device being structured for enabling continuous, automatic tripping operations of the oil pipe. The elevator transfer device comprises a lifting assembly used for lifting and releasing an oil pipe engaged with the elevator, and an elevator transport assembly used for transferring an elevator at a wellhead and/or an elevator on the lifting assembly. The apparatus for tripping oil pipe can lower the labour intensity and improve operation safety.
    Type: Application
    Filed: January 9, 2015
    Publication date: July 16, 2015
    Inventors: Minxuan WANG, Guangqi GAO, Lei ZHANG, Huihui SONG, Zeng FU, Hui ZHANG, Zhengquan CHENG, Bin WEI, Xiliang LI, Huawen SHU, Qiuhan SU, Qianwen TANG