Patents by Inventor CHI-TAK YEE

CHI-TAK YEE 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).

  • Steam-solvent-gas process with additional horizontal production wells to enhance heavy oil / bitumen recovery
    Patent number: 10145226
    Abstract: A system and method of production of hydrocarbons, such as heavy oil or bitumen, by injection of steam, solvent and NCG is provided, which combines the benefits of SAGD, VAPEX, and the use of an additional producer, with specific timing specifications for the initiation of solvent injection prior to inter-chamber fluid communication.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: December 4, 2018
    Assignee: MEG ENERGY CORP.
    Inventors: Chi-Tak Yee, Subramanyam Bharatha, William J. McCaffrey
  • STEAM-SOLVENT-GAS PROCESS WITH ADDITIONAL HORIZONTAL PRODUCTION WELLS TO ENHANCE HEAVY OIL / BITUMEN RECOVERY
    Publication number: 20170138160
    Abstract: A system and method of production of hydrocarbons, such as heavy oil or bitumen, by injection of steam, solvent and NCG is provided, which combines the benefits of SAGD, VAPEX, and the use of an additional producer, with specific timing specifications for the initiation of solvent injection prior to inter-chamber fluid communication.
    Type: Application
    Filed: November 16, 2016
    Publication date: May 18, 2017
    Inventors: CHI-TAK YEE, SUBRAMANYAM BHARATHA, WILLIAM J. McCAFFREY