Patents by Inventor David Butterwick

David Butterwick 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).

  • Publication number: 20250250889
    Abstract: Methods are provided herein for an end-of-life recovery of mobilized hydrocarbons from a stranded hydrocarbon pay zone within a subterranean reservoir by way of a recovery well. In some embodiments, the stranded pay zone is located between mobilized hydrocarbon zones of thermal recovery operations. In some embodiments, the stranded pay zone is an upper stranded pay zone located above a mobilized hydrocarbon zone of a thermal recovery operation. In some embodiments, the stranded pay zone is a lower stranded pay zone located below a mobilized hydrocarbon zone of a thermal recovery operation. The methods herein involve commencing end-of-life recovery at an end-of-life stage after a production threshold is achieved for thermal recovery operations.
    Type: Application
    Filed: February 3, 2025
    Publication date: August 7, 2025
    Applicant: Cenovus Energy Inc.
    Inventors: Emeka Chinedu Chineme, Ishan Deep Singh Kochhar, David Butterwick
  • Patent number: 12366149
    Abstract: Methods are provided herein for an end-of-life recovery of mobilized hydrocarbons from a stranded hydrocarbon pay zone within a subterranean reservoir by way of a recovery well. In some embodiments, the stranded pay zone is located between mobilized hydrocarbon zones of thermal recovery operations. In some embodiments, the stranded pay zone is an upper stranded pay zone located above a mobilized hydrocarbon zone of a thermal recovery operation. In some embodiments, the stranded pay zone is a lower stranded pay zone located below a mobilized hydrocarbon zone of a thermal recovery operation. The methods herein involve commencing end-of-life recovery at an end-of-life stage after a production threshold is achieved for thermal recovery operations.
    Type: Grant
    Filed: August 12, 2022
    Date of Patent: July 22, 2025
    Assignee: Cenovus Energy Inc.
    Inventors: Emeka Chinedu Chineme, Ishan Deep Singh Kochhar, David Butterwick