Patents by Inventor D. Duncan Blue

D. Duncan Blue 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).

  • Monitoring and control systems for continuous circulating drilling operations
    Patent number: 9057235
    Abstract: An apparatus for continuously flowing drilling fluid along a drill string includes a continuous circulation device having at least a first fluid path in fluid communication with a top drive and a second fluid path in communication with a diverter. The diverter is in selective fluid communication with a pipe stand associated with the drills string. The apparatus also includes at least one sensor that estimates at least one operating parameter associated with the continuous circulation device. A related method includes using a continuous circulation device as described to manipulate the drill string and controlling the continuous circulation device using at least one sensor configured to estimate at least one operating parameter associated with the continuous circulation device.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: June 16, 2015
    Assignee: BAKER HUGHES INCORPORATED
    Inventors: D. Duncan Blue, Charles A. Brecher, John D. Macpherson, Volker Krueger
  • MONITORING AND CONTROL SYSTEMS FOR CONTINUOUS CIRCULATING DRILLING OPERATIONS
    Publication number: 20140166364
    Abstract: An apparatus for continuously flowing drilling fluid along a drill string includes a continuous circulation device having at least a first fluid path in fluid communication with a top drive and a second fluid path in communication with a diverter. The diverter is in selective fluid communication with a pipe stand associated with the drills string. The apparatus also includes at least one sensor that estimates at least one operating parameter associated with the continuous circulation device. A related method includes using a continuous circulation device as described to manipulate the drill string and controlling the continuous circulation device using at least one sensor configured to estimate at least one operating parameter associated with the continuous circulation device.
    Type: Application
    Filed: December 18, 2012
    Publication date: June 19, 2014
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: D. Duncan Blue, Charles A. Brecher, John D. Macpherson, Volker Krueger
  • Method and apparatus for estimating a fluid property
    Patent number: 8379207
    Abstract: Apparatus and method for estimating a fluid property include an optic member having a material within the optic member responsive to the fluid property. A detector is operably associated with the optic member that detects a change in the material, the change being indicative of the fluid property.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: February 19, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: Rocco DiFoggio, D. Duncan Blue, III
  • METHOD AND APPARATUS FOR ESTIMATING A FLUID PROPERTY
    Publication number: 20100091288
    Abstract: Apparatus and method for estimating a fluid property include an optic member having a material within the optic member responsive to the fluid property. A detector is operably associated with the optic member that detects a change in the material, the change being indicative of the fluid property.
    Type: Application
    Filed: October 15, 2008
    Publication date: April 15, 2010
    Inventors: Rocco DiFoggio, D. Duncan Blue, III