Patents by Inventor Virginia W. Pennington

Virginia W. Pennington 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).

  • Method for recovery of hydrocarbons
    Patent number: 4715444
    Abstract: A method for recovering hydrocarbons from a subterranean hydrocarbon-containing formation penetrated by at least two wellbores, said method comprising:(a) injecting a gaseous stream into the formation near the bottom of the formation through a first wellbore;(b) injecting an aqueous stream into the formation near the top of the formation through the first wellbore; and(c) recovering hydrocarbons from the formation through a second wellbore.
    Type: Grant
    Filed: October 27, 1986
    Date of Patent: December 29, 1987
    Assignee: Atlantic Richfield Company
    Inventors: Donald J. MacAllister, Virginia W. Pennington