Patents by Inventor David R. VAN DE VLIERT

David R. VAN DE VLIERT 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: 8474525
    Abstract: A geothermal liner system with packer for sealing a producing zone within a wellbore has a mandrel placed in an interior of the wellbore, a packer releasably affixed around an outer surface of the mandrel, and a sleeve positioned adjacent an end of the mandrel. The liner system is generally tubular and may include joint casings and a mandrel, all being tubular-shaped. The packer is expandable upon exposure to wellbore conditions. The sleeve has perforations in a wall thereof. The mandrel is slidable relative to the packer when the packer expands against the wellbore. The sleeve is selectively controlled to manage production from sealed wellbore zones. The system is stabilized through various wellbore conditions, such as geothermal heat, by being adjustable for thermal expansion of parts of the system.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: July 2, 2013
    Inventor: David R. Van De Vliert
  • Publication number: 20110067855
    Abstract: A geothermal liner system with packer for sealing a producing zone within a wellbore has a mandrel placed in an interior of the wellbore, a packer releasably affixed around an outer surface of the mandrel, and a sleeve positioned adjacent an end of the mandrel. The liner system is generally tubular and may include joint casings and a mandrel, all being tubular-shaped. The packer is expandable upon exposure to wellbore conditions. The sleeve has perforations in a wall thereof. The mandrel is slidable relative to the packer when the packer expands against the wellbore. The sleeve is selectively controlled to manage production from sealed wellbore zones. The system is stabilized through various wellbore conditions, such as geothermal heat, by being adjustable for thermal expansion of parts of the system.
    Type: Application
    Filed: September 18, 2009
    Publication date: March 24, 2011
    Inventor: David R. VAN DE VLIERT