Patents by Inventor Anne Gerd RAFFN

Anne Gerd RAFFN 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).

  • Patent number: 9932801
    Abstract: A method for stabilizing a cavity at a production or injection zone in an underground well includes providing a filtering element in the well at the cavity that is to be stabilized. The filtering element is formed with openings. The method further includes injecting a first fluid including expandable particles through the filtering element into the cavity. The expandable particles have a non-expanded state with a diameter smaller than the diameter of the openings of the filtering element. The method further includes injecting a second fluid through the filtering element. The second fluid is configured to react with the expandable particles such that the expandable particles expand to a diameter larger than the diameter of the openings in the filtering element, whereby the expanded particles and the filtering element form a filter at the production or injection zone in the well.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: April 3, 2018
    Assignee: NORWAY WELL SOLUTIONS AS
    Inventor: Anne Gerd Raffn
  • Publication number: 20150369019
    Abstract: A method for stabilizing a cavity at a production or injection zone in an underground well is described. The method includes providing a filtering element in the well at the cavity that is to be stabilized, the filtering element being formed with openings. The method further includes injecting a first fluid including expandable particles through the filtering element into the cavity, where the expandable particles in a non-expanded state have a diameter smaller than the diameter of the openings of the filtering element. The method further includes injecting a second fluid through the filtering element, the second fluid configured to react with the expandable particles such that the expandable particles expand to a diameter larger than the diameter of the openings in the filtering element, whereby the expanded particles and the filtering element form a filter at the production or injection zone in the well.
    Type: Application
    Filed: January 13, 2014
    Publication date: December 24, 2015
    Applicant: Norway Well Solutions AS
    Inventor: Anne Gerd RAFFN