Patents by Inventor Graham J. Duplantis

Graham J. Duplantis 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).

  • DUAL STAGE FLOW BACK RECOVERY SYSTEM
    Publication number: 20140053917
    Abstract: A flow back recovery system for wells includes a plurality of pressure vessels with baffles and outlets for separating the various components of the flow back fluid. A diffuser is positioned between the well head and the first pressure vessel. The diffuser includes an interior diffuser pipe having a plurality of baffles and outlets. The diffuser pipe may be easily replaced in the field should it wear out due to the abrasive nature of the flow back fluid.
    Type: Application
    Filed: August 27, 2012
    Publication date: February 27, 2014
    Applicant: EXPRESS ENERGY SERVICES OPERATING LP
    Inventors: Michael O. Dobbs, Graham J. Duplantis
  • Expandable mill and methods of use
    Patent number: 8141627
    Abstract: In some embodiments, apparatus useful for cleaning at least part of the interior surface of a cylindrically-shaped member disposed in a subterranean well includes a housing and a plurality of retractable mill blades supported on the housing. The mill blades of such embodiments are capable of cleaning the entire circumference of the interior surface of at least a portion of the cylindrically-shaped member upon reciprocation of the housing.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: March 27, 2012
    Assignee: Baker Hughes Incorporated
    Inventors: George N. Krieg, David Hebert, Graham J. Duplantis
  • EXPANDABLE MILL AND METHODS OF USE
    Publication number: 20100243257
    Abstract: In some embodiments, apparatus useful for cleaning at least part of the interior surface of a cylindrically-shaped member disposed in a subterranean well includes a housing and a plurality of retractable mill blades supported on the housing. The mill blades of such embodiments are capable of cleaning the entire circumference of the interior surface of at least a portion of the cylindrically-shaped member upon reciprocation of the housing.
    Type: Application
    Filed: March 26, 2009
    Publication date: September 30, 2010
    Applicant: BJ Service Company
    Inventors: George N. Krieg, David Hebert, Graham J. Duplantis