Patents by Inventor Paul Ouwerkerk

Paul Ouwerkerk 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 creating an annular seal around a tubular element
    Patent number: 7819200
    Abstract: A method is disclosed of creating an annular seal around a tubular element for use in a wellbore. The method comprises providing at least one seal layer of a flexible sealing material susceptible to swelling upon contact with a selected fluid, the seal layer having a first edge and a second edge, and helically winding each seal layer around the tubular element so that the first and second edges extend opposite each other along the tubular element and so that the first and second edges seal relative to each other upon swelling of the flexible sealing material. The tubular element is lowered into the wellbore, and the selected fluid is allowed to contact each seal layer so as to induce swelling of the flexible sealing material whereby the first and second edges seal relative to each other.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: October 26, 2010
    Assignee: Shell Oil Company
    Inventors: Erik Kerst Cornelissen, Nouline Dijkstra, Paul Ouwerkerk
  • METHOD OF CREATING AN ANNULAR SEAL AROUND A TUBULAR ELEMENT
    Publication number: 20100206589
    Abstract: A method is disclosed of creating an annular seal around a tubular element for use in a wellbore. The method comprises providing at least one seal layer of a flexible sealing material susceptible to swelling upon contact with a selected fluid, the seal layer having a first edge and a second edge, and helically winding each seal layer around the tubular element so that the first and second edges extend opposite each other along the tubular element and so that the first and second edges seal relative to each other upon swelling of the flexible sealing material. The tubular element is lowered into the wellbore, and the selected fluid is allowed to contact each seal layer so as to induce swelling of the flexible sealing material whereby the first and second edges seal relative to each other.
    Type: Application
    Filed: February 17, 2010
    Publication date: August 19, 2010
    Inventors: Erik Kerst CORNELISSEN, Nouline DIJKSTRA, Paul OUWERKERK