Patents by Inventor Laurens Van Helvoirt

Laurens Van Helvoirt 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).

  • Publication number: 20070114037
    Abstract: A wellbore system for simultaneously drilling a wellbore into an earth formation and producing hydrocarbon fluid from the wellbore, is provided. The system comprises a production tubing extending into the wellbore and having a hydrocarbon fluid inlet arranged in a first part of the wellbore in fluid communication with a hydrocarbon fluid bearing zone of the earth formation, and a drilling riser extending through the production tubing and having a drilling fluid inlet in fluid communication with a second part of the wellbore, said second wellbore part being scaled from said first wellbore part. A drill string extends through the drilling riser and into said second wellbore part so as to allow further drilling of the wellbore.
    Type: Application
    Filed: September 23, 2002
    Publication date: May 24, 2007
    Inventors: Laurens Van Helvoirt, Hugh Sheehy