Patents by Inventor Windall Bray

Windall Bray 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).

  • SELF-SEALING WELL CEMENT COMPOSITION
    Publication number: 20080099203
    Abstract: A cement composition is provided including a cement and a low reactivity particle coated with a swellable polymeric material. The low reactivity particle is coated with a swellable polymeric material at a concentration of about 10 weight percent to about 50 weight percent, based on the weight of the cement. The swellable polymeric material swells to a larger volume when exposed to one or more hydrocarbons, depending on the selected polymeric material. The cement composition is used in a method as a self-sealing cement for cementing an oil and gas well, thereby minimizing or mitigating the unwanted migration of water or hydrocarbons.
    Type: Application
    Filed: December 17, 2007
    Publication date: May 1, 2008
    Applicant: BJ Services Company
    Inventors: Dan Mueller, Harold Brannon, Windall Bray