Patents by Inventor Bernard G. Juchereau

Bernard G. Juchereau 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).

  • Downhole inductive coupler assemblies
    Patent number: 8988178
    Abstract: An inductive coupler assembly for use in a downhole environment and related methods are described. An example indicative coupler assembly includes a first inductive coupler having first and second magnetically coupled coils and a second inductive coupler having third and fourth magnetically coupled coils. The first and third coils are coupled to a first pair of signal lines and the second and fourth coils are coupled to a second pair of signal lines. The first inductive coupler is to magnetically convey a differential communications signal between the first and second pairs of signal lines, and the second inductive coupler is to magnetically convey a common mode power signal between the first and second pairs of signal lines.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: March 24, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Benoit Deville, Yann Dufour, Bernard G Juchereau, Christian Chouzenoux
  • Downhole Inductive Coupler Assemblies
    Publication number: 20130120093
    Abstract: An inductive coupler assembly for use in a downhole environment and related methods are described. An example indicative coupler assembly includes a first inductive coupler having first and second magnetically coupled coils and a second inductive coupler having third and fourth magnetically coupled coils. The first and third coils are coupled to a first pair of signal lines and the second and fourth coils are coupled to a second pair of signal lines. The first inductive coupler is to magnetically convey a differential communications signal between the first and second pairs of signal lines, and the second inductive coupler is to magnetically convey a common mode power signal between the first and second pairs of signal lines.
    Type: Application
    Filed: July 1, 2011
    Publication date: May 16, 2013
    Inventors: Yann Dufour, Bernard G. Juchereau, Christian Chouzenoux
  • Monitoring performance of downhole equipment
    Patent number: 6310559
    Abstract: A method for use with equipment located downhole in a subterranean well includes providing a model describing behavior of the equipment and measuring a state of the equipment downhole. An indication is received of the state at a surface of the well, and the model is modified based on the indication. The system includes a communication link, a circuit and a machine. The communication link is adapted to furnish an indication of a state of the equipment to the surface of the well. The circuit is located downhole and is adapted to detect the state and produce the indication. The machine is adapted to provide a model describing behavior of the equipment and modify the model based on the indication.
    Type: Grant
    Filed: November 18, 1998
    Date of Patent: October 30, 2001
    Assignee: Schlumberger Technology Corp.
    Inventors: Guy Vachon Laborde, Anthony F. Veneruso, Gerald W. Robertson, Stephane Hiron, Bernard G. Juchereau