Patents by Inventor Hege Kummernes

Hege Kummernes 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).

  • Treatment of produced hydrocarbons
    Patent number: 11965131
    Abstract: A method for managing metal naphthenates in produced hydrocarbons includes injecting acid and/or sour gas into produced hydrocarbons in a production well, flowline or riser, to thereby control the pH of fluids contained in the produced hydrocarbons.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: April 23, 2024
    Assignee: EQUINOR ENERGY AS
    Inventors: Ingvild Johanne Haug, Børre Tore Børresen, Heidi Mediaas, Hege Kummernes, Ivar Øystein Larsen
  • Process for removing metal naphthenate from crude hydrocarbon mixtures
    Patent number: 10358609
    Abstract: Metal naphthenate is removed from a crude hydrocarbon mixture by a process. The process includes mixing the crude hydrocarbon mixture comprising metal naphthenate with an acid in the presence of water, wherein the acid converts the metal naphthenate to naphthenic acid and metal salt; allowing the metal salt to partition into a water phase; and separating the crude heavy hydrocarbon mixture comprising naphthenic acid and the water phase comprising the metal salt.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: July 23, 2019
    Assignee: STATOIL PETROLEUM AS
    Inventors: Knut Grande, Hege Kummernes, Kim Reidar Høvik, Jens Emil Vindstad, Heidi Mediaas, Jorunn Steinsland Rosvoll, Ingvild Johanne Haug
  • Method for isolation and quantification of naphthenate forming acids (“ARN-acids”)
    Patent number: 8674161
    Abstract: A method for isolation and quantification of naphthenate forming acids (ARN-acids) in crude oils is disclosed. The method involves selective absorbtion/adsorption of ARN acids by a solid medium. Isolation of the solid medium and transferring the ARN acids to an organic solvent which can by analysed for its ARN acid content.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: March 18, 2014
    Assignee: Statoil Petroleum AS
    Inventors: Heidi Mediaas, Knut Grande, Hege Kummernes, Jens Emil Vindstad
  • METHOD FOR ISOLATION AND QUANTIFICATION OF NAPHTHENATE FORMING ACIDS ("ARN ACIDS")
    Publication number: 20120190907
    Abstract: A method for isolation and quantification of naphthenate forming acids (ARN-acids) in crude oils is disclosed. The method involves selective absorbtion/adsorption of ARN acids by a solid medium. Isolation of the solid medium and transferring the ARN acids to an organic solvent which can by analysed for its ARN acid content.
    Type: Application
    Filed: June 22, 2010
    Publication date: July 26, 2012
    Applicant: STATOIL PETROLEUM AS
    Inventors: Heidi Mediaas, Knut Grande, Hege Kummernes, Jens Emil Vindstad