Patents by Inventor Kevin Kar Wan To

Kevin Kar Wan To 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).

  • Hot water injection stimulation method for chops wells
    Patent number: 10060239
    Abstract: A method for stimulating heavy oil recovery from CHOPS wells at or nearing the end of productive life but not experiencing water-out, wherein produced water is heated to below boiling point and injected back downhole to reduce heavy oil viscosity in the near-wellbore region and surrounding the wormhole network, enabling existing reservoir pressure to drive the reduced-viscosity heavy oil toward the well for production to surface. The injection-soak-production cycle can be repeated as desired so long as adequate reservoir pressure exists.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: August 28, 2018
    Assignee: Husky Oil Operations Limited
    Inventor: Kevin Kar Wan To
  • HOT WATER INJECTION STIMULATION METHOD FOR CHOPS WELLS
    Publication number: 20170175504
    Abstract: A method for stimulating heavy oil recovery from CHOPS wells at or nearing the end of productive life but not experiencing water-out, wherein produced water is heated to below boiling point and injected back downhole to reduce heavy oil viscosity in the near-wellbore region and surrounding the wormhole network, enabling existing reservoir pressure to drive the reduced-viscosity heavy oil toward the well for production to surface. The injection-soak-production cycle can be repeated as desired so long as adequate reservoir pressure exists.
    Type: Application
    Filed: December 15, 2016
    Publication date: June 22, 2017
    Inventor: Kevin Kar Wan To