Patents by Inventor Simen Elvestad

Simen Elvestad 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).

  • Process of preparing a gas composition and use thereof
    Patent number: 6595291
    Abstract: The present invention provides a process of preparing of a gas composition suitable for the injection in an oil-containing field to increase the degree of recovery and simultaneously reduce the discharge of CO2 to the atmosphere. However, injection of a gas composition containing large amounts of oxygen will result in a degraded submarine formation which is not desirable. The present invention relates to a process for the production of a gas composition comprising N2, CO2, minor parts of NOx, VOC (volatile organic compounds) and about 0-2.0 mole % O2 from an oxygen containing exhaust gas, wherein a stream of an exhaust gas from the combustion of air and natural gas in a gas turbine containing 18% by weight O2 or less, is combusted with natural gas, whereupon the desired gas composition is discharged as a flue gas. Further, a process of recovering oil from submarine formations is also described, where said gas composition is compressed and injected into a submarine formation.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: July 22, 2003
    Assignee: Naturkraft AS
    Inventors: Torbj{haeck over (o)}rn A. Lia, Simen Elvestad, Auke Lont