Patents by Inventor David B. Bright

David B. Bright 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).

  • Polyalkoxy sulfonate, CO.sub.2 and brine drive process for oil recovery
    Patent number: 4502538
    Abstract: Oil is displaced within a subterranean reservoir by injecting a combination of substantially liquefied CO.sub.2, brine and surfactant material into the reservoir, with the surfactant material being a polyalkoxy aliphatic sulfonate surfactant material which has specified dispersing and partitioning properties in contact with the brine and the fluids in the reservoir at the reservoir temperature and a pressure sufficient to substantially liquefy the CO.sub.2 within the reservoir.
    Type: Grant
    Filed: January 9, 1984
    Date of Patent: March 5, 1985
    Assignee: Shell Oil Company
    Inventors: Scott L. Wellington, Joseph Reisberg, Eugene F. Lutz, David B. Bright