Patents by Inventor Svein Viggo Aanesen

Svein Viggo Aanesen 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 of removing hydrocarbons from produced water
    Patent number: 11795803
    Abstract: The present invention relates to a method for removing hydrocarbons from produced water, comprising: (i) separating produced water from a hydrocarbon and water mixture extracted from a subterranean formation: (ii) contacting said produced water with multivalent metal cations to produce a mixture of produced water and multivalent metal cations; and (iii) removing hydrocarbons from said mixture in a hydrocyclone and/or a compact flotation unit to give treated produced water, wherein the concentration of hydrocarbons in said produced water is less than 10% wt.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: October 24, 2023
    Assignee: EQUINOR ENERGY AS
    Inventors: Jens Bragdø Smith, Karen Anne Gudbrandsen, Svein Viggo Aanesen, Anne Finborud
  • METHOD
    Publication number: 20190352202
    Abstract: The present invention relates to a method for removing hydrocarbons from produced water, comprising: (i) separating produced water from a hydrocarbon and water mixture extracted from a subterranean formation: (ii) contacting said produced water with multivalent metal cations to produce a mixture of produced water and multivalent metal cations; and (iii) removing hydrocarbons from said mixture in a hydrocyclone and/or a compact flotation unit to give treated produced water, wherein the concentration of hydrocarbons in said produced water is less than 10% wt.
    Type: Application
    Filed: January 31, 2018
    Publication date: November 21, 2019
    Applicant: Equinor Energy AS
    Inventors: Jens Bragdø Smith, Karen Anne Gudbrandsen, Svein Viggo Aanesen, Anne Finborud