Patents by Inventor Frank S. Cordiner

Frank S. Cordiner 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).

  • Use of potassium hydroxide solutions in a well bore
    Patent number: 4284140
    Abstract: A workover fluid, a kill fluid, or completion fluid having potassium hydroxide dissolved therein is injected into a well bore penetrating and communicating with a subterranean sandstone formation containing water-sensitive fine particles, including clays, and invades the sandstone formation. Potassium hydroxide contacts and stabilizes the fine particles for a substantial period of time thereby substantially preventing formation permeability damage caused by encroachment of aqueous solutions having a distinct and undesired ionic constituency.
    Type: Grant
    Filed: June 30, 1980
    Date of Patent: August 18, 1981
    Assignee: Marathon Oil Co.
    Inventors: Robert D. Sydansk, Frank S. Cordiner