Patents by Inventor Robert E. Chumley

Robert E. Chumley 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 of treating subterranean formations using a non-damaging fracturing fluid
    Patent number: 5007481
    Abstract: Subterranean formations are fractured by use of an aqueous fracturing fluid containing an effective amount of a copolymer of acrylamide and potassium acrylate crosslinked with a titanium or zirconium compounds. The fracturing fluid also contains an oxidative gel breaker. The method is particularly suited for treatment of deep, high temperature formations.
    Type: Grant
    Filed: February 2, 1990
    Date of Patent: April 16, 1991
    Assignee: Exxon Chemical Patents, Inc.
    Inventors: Dennis A. Williams, Roger L. Horton, John C. Newlove, Robert E. Chumley