Patents by Inventor Dave Irvine-Halliday

Dave Irvine-Halliday 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).

  • Continuous measurement-while-drilling surveying
    Patent number: 6823602
    Abstract: A continuous measurement-while-drilling surveying apparatus includes a fiber optic gyroscope sensitive to rotation about the tool spin axis of the bottom hole assembly and a second fiber optic gyroscope sensitive to rotation of the bottom hole assembly about an axis normal to the tool spin axis. The first gyroscope may be shaped as a torus to accommodate flow of drilling mud through the bottom hole assembly. The outputs of the first and second gyroscopes are processed together with acceleration signals from three accelerometers in a microprocessor which determines the orientation, velocity and position of the bottom hole assembly on a continuous basis.
    Type: Grant
    Filed: September 5, 2003
    Date of Patent: November 30, 2004
    Assignee: University Technologies International Inc.
    Inventors: Aboelmagd Noureldin, Herb Tabler, Winston Smith, Dave Irvine-Halliday, Martin P. Mintchev
  • Continuous measurement-while-drilling surveying
    Publication number: 20040089474
    Abstract: A continuous measurement-while-drilling surveying apparatus includes a fiber optic gyroscope sensitive to rotation about the tool spin axis of the bottom hole assembly and a second fiber optic gyroscope sensitive to rotation of the bottom hole assembly about an axis normal to the tool spin axis. The first gyroscope may be shaped as a torus to accommodate flow of drilling mud through the bottom hole assembly. The outputs of the first and second gyroscopes are processed together with acceleration signals from three accelerometers in a microprocessor which determines the orientation, velocity and position of the bottom hole assembly on a continuous basis.
    Type: Application
    Filed: September 5, 2003
    Publication date: May 13, 2004
    Applicant: University Technologies International Inc.
    Inventors: Aboelmagd Noureldin, Herb Tabler, Winston Smith, Dave Irvine-Halliday, Martin P. Mintchev
  • Continuous measurement-while-drilling surveying
    Patent number: 6668465
    Abstract: A continuous measurement-while-drilling surveying apparatus includes a fiber optic gyroscope sensitive to rotation about the tool spin axis of the bottom hole assembly and a second fiber optic gyroscope sensitive to rotation of the bottom hole assembly about an axis normal to the tool spin axis. The first gyroscope may be shaped as a torus to accommodate flow of drilling mud through the bottom hole assembly. The outputs of the first and second gyroscopes are processed together with acceleration signals from three accelerometers in a microprocessor which determines the orientation, velocity and position of the bottom hole assembly on a continuous basis.
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: December 30, 2003
    Assignee: University Technologies International Inc.
    Inventors: Aboelmagd Noureldin, Herb Tabler, Winston Smith, Dave Irvine-Halliday, Martin P. Mintchev
  • Continuous measurement-while-drilling surveying
    Publication number: 20020133958
    Abstract: A continuous measurement-while-drilling surveying apparatus includes a fiber optic gyroscope sensitive to rotation about the tool spin axis of the bottom hole assembly and a second fiber optic gyroscope sensitive to rotation of the bottom hole assembly about an axis normal to the tool spin axis. The first gyroscope may be shaped as a torus to accommodate flow of drilling mud through the bottom hole assembly. The outputs of the first and second gyroscopes are processed together with acceleration signals from three accelerometers in a microprocessor which determines the orientation, velocity and position of the bottom hole assembly on a continuous basis.
    Type: Application
    Filed: February 23, 2001
    Publication date: September 26, 2002
    Inventors: Aboelmagd Noureldin, Herb Tabler, Winston Smith, Dave Irvine-Halliday, Martin P. Mintchev