Patents by Inventor Ian W. Thackwray

Ian W. Thackwray 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).

  • Subsea controlled milling
    Patent number: 6926102
    Abstract: Subsea controlled milling apparatus and methods. In a described embodiment, a method of controlling displacement of a cutting device conveyed on a tubular string in a subterranean well includes the steps of: interconnecting an apparatus in the tubular string, the apparatus including an axial advancement device and an anchoring device; actuating the anchoring device to anchor the apparatus in the well; applying a pressure differential to the advancement device, thereby displacing the cutting device relative to the apparatus; and operating the cutting device to cut a structure in the well.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: August 9, 2005
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Joseph E. Hess, Neil Hepburn, Benji Smith, John J. Guerrero, Ian W. Thackwray
  • Subsea controlled milling
    Publication number: 20040168829
    Abstract: Subsea controlled milling apparatus and methods. In a described embodiment, a method of controlling displacement of a cutting device conveyed on a tubular string in a subterranean well includes the steps of: interconnecting an apparatus in the tubular string, the apparatus including an axial advancement device and an anchoring device; actuating the anchoring device to anchor the apparatus in the well; applying a pressure differential to the advancement device, thereby displacing the cutting device relative to the apparatus; and operating the cutting device to cut a structure in the well.
    Type: Application
    Filed: February 28, 2003
    Publication date: September 2, 2004
    Inventors: Joseph E. Hess, Neil Hepburn, Benji Smith, John J. Guerrero, Ian W. Thackwray