Patents by Inventor Windal Bray

Windal 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).

  • Ultra low density cementitious slurries for use in cementing of oil and gas wells
    Publication number: 20050166803
    Abstract: The storable, low-density, hydraulically-active, cementitious slurry of the invention is suitable for cementing within a subterranean formation for oil or gas wells. The low-density slurry comprises a hydraulically-active cementitious material, a set retarder, a plasticizer, glass or ceramic micro-spheres, and a strengthening agent. Further the slurry is substantially free of a suspension agent. The storable, low-density, hydraulically-active, cementitious slurry is made by adding glass or ceramic micro-spheres to a hydraulically-active cementitious material, adding a strengthening agent to the microsphere containing composition, and mixing the resulting composition with water, a set retarder, and a plasticizer to generate a slurry, wherein the set retarder is present in an amount sufficient to allow storage of the slurry.
    Type: Application
    Filed: December 16, 2004
    Publication date: August 4, 2005
    Applicant: BJ Services Company
    Inventors: Robert Dillenbeck, Thomas Heinold, Murray Rogers, Windal Bray