Patents by Inventor Tinghan Zhang

Tinghan Zhang 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).

  • High-energy combined well perforating device
    Patent number: 6991044
    Abstract: The invention relates to a perforating device comprising one or more perforating gun (1) installed in a perforating body (9), a perforating gun head (2) in the uppermost end of the perforating body (9), a perforating gun base (7) in the lowermost end of the perforating body (9) and a detonating device (3) installed inside or outside the perforating head (2), in which a charge frame (10, 22) is installed inside of the perforating body (9). A plurality of perforator unit connected each other by a detonating cord (15) are provided on the charge frame (10, 22). Every perforator unit comprises an explosive box (11) in a charge socket, a charge (13) in charge housing (12) and energy-bearing media (14). Moreover, an energy-bearing media sleeve (28) is provided outside of the perforating device. The perforating device is easy to manufacture with low cost and can be used securely in the operation.
    Type: Grant
    Filed: February 6, 2002
    Date of Patent: January 31, 2006
    Assignee: Xi'An Tongyuan Petrotech Co., Ltd.
    Inventors: Xi Zhang, Tinghan Zhang
  • Well perforating device
    Publication number: 20040129415
    Abstract: The invention relates to a perforating device comprising one or more perforating gun (1) installed in a perforating body (9), a perforating gun head (2) in the uppermost end of the perforating body (9), a perforating gun base (7) in the lowermost end of the perforating body (9) and a detonating device (3) installed inside or outside the perforating head (2), in which a charge frame (10, 22) is installed inside of the perforating body (9). A plurality of perforator unit connected each other by a detonating cord (15) are provided on the charge frame (10, 22). Every perforator unit comprises an explosive box (11) in a charge socket, a charge (13) in charge housing (12) and energy-bearing media (14). Moreover, an energy-bearing media sleeve (28) is provided outside of the perforating device. The perforating device is easy to manufacture with low cost and can be used securely in the operation.
    Type: Application
    Filed: December 17, 2003
    Publication date: July 8, 2004
    Inventors: Zhang Xi, Tinghan Zhang