Patents by Inventor Weiping Ai

Weiping Ai 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).

  • Mud pressure wave signal modulation apparatus and method
    Patent number: 12448885
    Abstract: The present disclosure discloses a mud pressure wave signal modulation apparatus and method, which relate to the technical field of petroleum drilling engineering. The apparatus includes: a motor (5), a valve plate (3), a main control circuit (23), a motor drive control circuit, and a downhole communication circuit; the valve plate (3) is driven by the motor (5) to be rotated around an axial direction perpendicular to a flow direction of drilling fluid; the motor (5) and the valve plate (3) are disposed in a drilling fluid channel (2), and the drilling fluid channel (2), the motor (5), the valve plate (3), the main control circuit (23), the motor drive control circuit and the downhole communication circuit are disposed in a drill collar.
    Type: Grant
    Filed: December 6, 2022
    Date of Patent: October 21, 2025
    Assignees: China National Petroleum Corporation, CNPC Engineering Technology R&D Company Limited
    Inventors: Jiajin Wang, Weimin Mao, Weiping Ai, Yifeng Fan, Xiurong Dou, Hengtian Jia, Peng Wang, Zhigang Wei, Lei Wang, Xianwei Guo
  • MUD PRESSURE WAVE SIGNAL MODULATION APPARATUS AND METHOD
    Publication number: 20240247586
    Abstract: The present disclosure discloses a mud pressure wave signal modulation apparatus and method, which relate to the technical field of petroleum drilling engineering. The apparatus includes: a motor (5), a valve plate (3), a main control circuit (23), a motor drive control circuit, and a downhole communication circuit; the valve plate (3) is driven by the motor (5) to be rotated around an axial direction perpendicular to a flow direction of drilling fluid; the motor (5) and the valve plate (3) are disposed in a drilling fluid channel (2), and the drilling fluid channel (2), the motor (5), the valve plate (3), the main control circuit (23), the motor drive control circuit and the downhole communication circuit are disposed in a drill collar.
    Type: Application
    Filed: December 6, 2022
    Publication date: July 25, 2024
    Inventors: Jiajin Wang, Weimin Mao, Weiping Ai, Yifeng Fan, Xiurong Dou, Hengtian Jia, Peng Wang, Zhigang Wei, Lei Wang, Xianwei Guo