Patents by Inventor Mary B. Chaney

Mary B. Chaney 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).

  • Urea as a cosurfactant in enhanced oil recovery processes
    Patent number: 4493370
    Abstract: A surfactant system useful for oil recovery comprising salt water, a surfactant, such as a petroleum sulfonate, and urea. Optionally, a C.sub.3 to C.sub.8 alcohol is additionally present as a cosurfactant.
    Type: Grant
    Filed: January 27, 1983
    Date of Patent: January 15, 1985
    Assignee: Phillips Petroleum Company
    Inventors: Paul R. Stapp, Mary B. Chaney
  • N,N-Disubstituted amide cosurfactants in enhanced oil recovery processes
    Patent number: 4490263
    Abstract: A surfactant system useful for oil recovery consisting essentially of a NaCl brine, a hydrocarbon sulfonate surfactant, such as a petroleum sulfonate, and a cosurfactant such as a N,N-disubstituted amide. In another embodiment, a C.sub.1 to C.sub.8 alcohol is additionally present as a cosurfactant.
    Type: Grant
    Filed: December 10, 1982
    Date of Patent: December 25, 1984
    Assignee: Phillips Petroleum Company
    Inventors: Paul R. Stapp, Mary B. Chaney