Patents by Inventor John K. Donnelly

John K. Donnelly 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).

  • Pressure-up/blowdown combustion - a channelled reservoir recovery process
    Patent number: 4718489
    Abstract: A cyclic process is described for recovering heavy oil from a reservoir having a network of generally linear, narrow permeable communication channels interconnecting outlying producing wells with an injection well. Except for the channels, the reservoir must be sufficiently impermeable so that pressure may be built up therein by the continued injection of oxidizing gas and propagation of a combustion front when the producers are choked or shut in.
    Type: Grant
    Filed: September 17, 1986
    Date of Patent: January 12, 1988
    Assignee: Alberta Oil Sands Technology and Research Authority
    Inventors: Richard J. Hallam, John K. Donnelly