Patents by Inventor Duncan Ian Green-Armytage

Duncan Ian Green-Armytage 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 for controlling fluid flow into an oil and/or gas production well
    Patent number: 7063162
    Abstract: The inflow of fluid from an oil and/or gas bearing formation into an oil and/or gas production well is cyclically moved up and down along the length of an inflow region of the well by cyclically changing the opening of one or more control valves.
    Type: Grant
    Filed: February 19, 2002
    Date of Patent: June 20, 2006
    Assignee: Shell Oil Company
    Inventors: Roelof Daling, Vincent Sebastiaan Droppert, Johan Dirk Jansen, Arjen Michiel Wagenvoort, Carlos Alberto Glandt, Duncan Ian Green-Armytage
  • Method for controlling fluid flow into an oil and/or gas production well
    Publication number: 20040094307
    Abstract: Inflow of fluid from an oil and/or gas bearing formation into an oil and/or gas production well is cyclically moved up and down along the length of an inflow region of the well by cyclically changing the opening of one or more control valves.
    Type: Application
    Filed: August 18, 2003
    Publication date: May 20, 2004
    Inventors: Roelof Daling, Vincent Sebastiaan Droppert, Johan Dirk Jansen, Arjen Michiel Wagenvoort, Carlos Alberto Glandt, Duncan Ian Green-Armytage