Patents by Inventor Jan Harm Van Der Wal

Jan Harm Van Der Wal 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 system for lining a section of a wellbore with an expandable tubular element
    Patent number: 9366117
    Abstract: A system and method for lining a section of a wellbore with an expandable tubular element. The system comprises an elongate drill string having a force multiplier near a lower end thereof, which is housed within the expandable tubular element. An expander for expanding the tubular element is arranged at a lower end of the force multiplier. Anchoring means are provided at the exterior of the tubular element for anchoring the tubular element in the wellbore. Pulling the expander through the expandable tubular using the force multiplier may be combined with pulling the drill string upwards. A sudden drop of the hydraulic pressure in the force multiplier drops will confirm fixation of the anchoring means in the wellbore wall.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: June 14, 2016
    Assignee: Enventure Global Technology, LLC
    Inventors: Egbert Jan Van Riet, Feitze Veenstra, Jan Harm Van Der Wal, Antonius Leonardus Maria Wubben, Djurre Hans Zijsling
  • METHOD AND SYSTEM FOR LINING A SECTION OF A WELLBORE WITH AN EXPANDABLE TUBULAR ELEMENT
    Publication number: 20120298379
    Abstract: A system and method for lining a section of a wellbore with an expandable tubular element. The system comprises an elongate drill string having a force multiplier near a lower end thereof, which is housed within the expandable tubular element. An expander for expanding the tubular element is arranged at a lower end of the force multiplier. Anchoring means are provided at the exterior of the tubular element for anchoring the tubular element in the wellbore. Pulling the expander through the expandable tubular using the force multiplier may be combined with pulling the drill string upwards. A sudden drop of the hydraulic pressure in the force multiplier drops will confirm fixation of the anchoring means in the wellbore wall.
    Type: Application
    Filed: November 16, 2010
    Publication date: November 29, 2012
    Inventors: Egbert Jan Van Riet, Feitze Veenstra, Jan Harm Van Der Wal, Antonius Leonardus Maria Wubben, Djurre Hans Zijsling