Patents by Inventor Jan Grontvedt

Jan Grontvedt 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).

  • Method and plant or increasing oil recovery by gas injection
    Patent number: 7168488
    Abstract: A method and a plant for simultaneous production of a gas for injection into an oil field and production of methanol, dimethyl ether and/or other oxygenated hydrocarbons or production of higher hydrocarbons from natural gas is disclosed. An air separation unit (ATR) for production of pure nitrogen for injection and pure oxygen for production of synthesis gas (“syngas”) by authermal reformation of a natural gas is an essential part of the method and plant.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: January 30, 2007
    Assignee: Statoil ASA
    Inventors: Ola Olsvik, Erling Rytter, Jostein Sogge, Rune Kvale, Sjur Haugen, Jan Grøntvedt
  • Method and plant or increasing oil recovery by gas injection
    Publication number: 20040256116
    Abstract: A method and a plant for simultaneous production of a gas for injection into an oil field and production of methanol, dimethyl ether and/or other oxygenated hydrocarbons or production of higher hydrocarbons from natural gas is disclosed. An air separation unit (ATR) for production of pure nitrogen for injection and pure oxygen for production of synthesis gas (“syngas”) by authermal reformation of a natural gas is an essential part of the method and plant.
    Type: Application
    Filed: August 5, 2004
    Publication date: December 23, 2004
    Inventors: Ola Olsvik, Erling Rytter, Jostein Sogge, Rune Kvale, Sjur Haugen, Jan Grontvedt