Patents by Inventor Rex Wat

Rex Wat 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).

  • Well treatment comprising a polymer formed from a diallyl ammonium salt and a scale inhibitor
    Patent number: 8101554
    Abstract: The present invention provides a method for increasing the retention of a scale inhibitor within a hydrocarbon producing system (e.g. a subterranean formation), said method comprising contacting said system with a polymer formed from a diallyl ammonium salt and with said scale inhibitor, wherein said polymer formed from a diallyl ammonium salt has a molecular weight of greater than 50,000 (e.g. a molecular weight of 55,000 to 2,000,000).
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: January 24, 2012
    Assignees: Champion Technologies Ltd., Statoilhydro ASA.
    Inventors: Harry Montgomerie, Ping Chen, Thomas Hagen, Rex Wat, Olav Martin Selle
  • WELL TREATMENT
    Publication number: 20100273682
    Abstract: The present invention provides a method for increasing the retention of a scale inhibitor within a hydrocarbon producing system (e.g. a subterranean formation), said method comprising contacting said system with a polymer foamed from a diallyl ammonium salt and with said scale inhibitor, wherein said polymer formed from a diallyl ammonium salt has a molecular weight of greater than 50,000 (e.g. a molecular weight of 55,000 to 2,000,000).
    Type: Application
    Filed: August 16, 2007
    Publication date: October 28, 2010
    Inventors: Harry Montgomerie, Ping Chen, Thomas Hagen, Rex WAT, Olav Martin Selle