Patents by Inventor Ray A. Plummer

Ray A. Plummer 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).

  • Fracturing well formations using foam
    Patent number: 3980136
    Abstract: Foam fracturing fluids and methods for fracturing well formations using foam as the carrier for the propping agent are disclosed. The foams are stiff stable foams formed of a relative large amount of gas and a relative small amount of liquid. The foams are stable at surface pressures and remain stable when delivered into the well formation at the bottom of the well.
    Type: Grant
    Filed: April 5, 1974
    Date of Patent: September 14, 1976
    Assignee: Big Three Industries, Inc.
    Inventors: Ray A. Plummer, Charles W. Johnson