Patents by Inventor Andy Legault

Andy Legault 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).

  • Apparatus and method for managed pressure drilling
    Patent number: 8631874
    Abstract: A drilling system employing a main tubular having a plurality of fluid inlet and outlet conduits positioned thereon and a concentric inner tubular having a plurality seals for sealing the annular space between the concentric inner and main tubulars. The fluid inlet and outlet conduits work in cooperation with the annular seals to selectively open and close for effective management of pressure within the tubulars.
    Type: Grant
    Filed: January 6, 2011
    Date of Patent: January 21, 2014
    Assignee: Transocean Sedco Forex Ventures Limited
    Inventors: John Kozicz, Tim Juran, Andy Legault, Sandy Black, John Mackay, Scott Niven, Iain Sneddon
  • Apparatus and Method for Managed Pressure Drilling
    Publication number: 20110108282
    Abstract: A drilling system employing a main tubular having a plurality of fluid inlet and outlet conduits positioned thereon and a concentric inner tubular having a plurality seals for sealing the annular space between the concentric inner and main tubulars. The fluid inlet and outlet conduits work in cooperation with the annular seals to selectively open and close for effective management of pressure within the tubulars.
    Type: Application
    Filed: January 6, 2011
    Publication date: May 12, 2011
    Inventors: John Kozicz, Tim Juran, Andy Legault, Sandy Black, John Mackay, Scott Niven, Iain Sneddon
  • Apparatus and method for managed pressure drilling
    Patent number: 7866399
    Abstract: A drilling system employing a main tubular having a plurality of fluid inlet and outlet conduits positioned thereon and a concentric inner tubular having a plurality seals for sealing the annular space between the concentric inner and main tubulars. The fluid inlet and outlet conduits work in cooperation with the annular seals to selectively open and close for effective management of pressure within the tubulars.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: January 11, 2011
    Assignee: Transocean Sedco Forex Ventures Limited
    Inventors: John Kozicz, Tim Juran, Andy Legault, Sandy Black, John Mackay, Scott Niven, Iain Sneddon
  • Apparatus and method for managed pressure drilling
    Publication number: 20070095540
    Abstract: A drilling system employing a main tubular having a plurality of fluid inlet and outlet conduits positioned thereon and a concentric inner tubular having a plurality seals for sealing the annular space between the concentric inner and main tubulars. The fluid inlet and outlet conduits work in cooperation with the annular seals to selectively open and close for effective management of pressure within the tubulars.
    Type: Application
    Filed: October 20, 2006
    Publication date: May 3, 2007
    Inventors: John Kozicz, Tim Juran, Andy Legault, Sandy Black, John Mackay, Scott Niven, Iain Sneddon