Patents by Inventor Fred Dupriest

Fred Dupriest 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).

  • Hydrocarbon Recovery Operations Fluids and Methods For Using the Same
    Publication number: 20120193095
    Abstract: Fluids for use in hydrocarbon recovery operations include a non-aqueous fluid and at least one organo-anionic surfactant. The fluids may be used in methods for conducting hydrocarbon recovery operations, such as drilling operations, completion operations, production operations, injection operations. The fluid may be adapted to remediate a NAF filter cake. Exemplary organo-anionic surfactants may include one or more of monoethanol ammonium alkyl aromatic sulfonic acid, monoethanol ammonium alkyl carboxylic acid, and mixtures thereof.
    Type: Application
    Filed: August 10, 2010
    Publication date: August 2, 2012
    Inventors: Ramesh Varadaraj, Sabine C. Zeilinger, Fred Dupriest