Patents by Inventor Derek Caudwell

Derek Caudwell 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 formation evaluation
    Patent number: 7222671
    Abstract: A viscometer for a down hole tool positionable in a well bore penetrating a subterranean formation is described. The formation contains at least one fluid therein. The down hole tool is adapted to convey at least a portion of the fluid to the viscometer. The viscometer comprises a sensor unit, and at least one magnet. The sensor unit is positionable within the down hole tool and comprises at least two spatially disposed clamps and a wire suspended in tension between the at least two clamps such that the wire is available for interaction with the fluid when the viscometer is positioned within the down hole tool and the down hole tool is positioned within the subterranean formation and receives the fluid from the subterranean formation.
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: May 29, 2007
    Assignee: Schlumberger Technology Corporation
    Inventors: Derek Caudwell, Anthony R. H. Goodwin, Martin Trusler, Michael W. Frels, Kai Hsu, Jonathan W. Brown, Julian J. Pop, Bunker M. Hill, Andrew L. Kurkjian
  • Apparatus and method for formation evaluation
    Publication number: 20060137873
    Abstract: A viscometer for a down hole tool positionable in a well bore penetrating a subterranean formation is described. The formation contains at least one fluid therein. The down hole tool is adapted to convey at least a portion of the fluid to the viscometer. The viscometer comprises a sensor unit, and at least one magnet. The sensor unit is positionable within the down hole tool and comprises at least two spatially disposed clamps and a wire suspended in tension between the at least two clamps such that the wire is available for interaction with the fluid when the viscometer is positioned within the down hole tool and the down hole tool is positioned within the subterranean formation and receives the fluid from the subterranean formation.
    Type: Application
    Filed: December 23, 2004
    Publication date: June 29, 2006
    Inventors: Derek Caudwell, Anthony Goodwin, Martin Trusler, Michael Frels, Kai Hsu, Jonathan Brown, Julian Pop, Bunker Hill, Andrew Kurkjian