Patents by Inventor Marc Kurella

Marc Kurella 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).

  • Method and apparatus for downlink communication using dynamic threshold values for detecting transmitted signals
    Patent number: 7983113
    Abstract: The present invention provides a method and system in which signals from the surface are sent by changing flow rate of the drilling fluid supplied to the drill string during drilling of a wellbore. The signals are sent based on a fixed or dynamic time period schemes so that the sent signals cross a dynamic threshold value in a known manner. A controller downhole sets the dynamic threshold and determines the number of times a parameter, such as voltage, relating to the changes in the flow rate crosses the set dynamic threshold. Based on the number of the number of crossings and/or the number of crossings and the timing of such crossings, the controller ascertains the signal sent from the surface for use downhole.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: July 19, 2011
    Assignee: Baker Hughes Incorporated
    Inventors: Sven Krueger, Thomas Kelch, Joachim Treviranus, Henning Doerge, Marc Kurella
  • Method and apparatus for downlink communication
    Patent number: 7518950
    Abstract: The present invention provides a method and system in which signals from the surface are sent by changing flow rate of the drilling fluid supplied to the drill string during drilling of a wellbore. The signals are sent based on a fixed or dynamic time period schemes so that the sent signals cross a threshold value in a known manner. A detector measures the changes in the flow rate. A controller downhole determines the number of times a downhole parameter, such as voltage, relating to the changes in the flow rate crosses a predefined threshold value. Based on the number of the crossings and the timing of such crossings, signals are assigned to commands. The controller controls or operates a steering device based on the commands.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: April 14, 2009
    Assignee: Baker Hughes Incorporated
    Inventors: Joachim Treviranus, Henning Doerge, Marc Kurella
  • Method and Apparatus for Downlink Communication Using Dynamic Threshold Values for Detecting Transmitted Signals
    Publication number: 20080007423
    Abstract: The present invention provides a method and system in which signals from the surface are sent by changing flow rate of the drilling fluid supplied to the drill string during drilling of a wellbore. The signals are sent based on a fixed or dynamic time period schemes so that the sent signals cross a dynamic threshold value in a known manner. A controller downhole sets the dynamic threshold and determines the number of times a parameter, such as voltage, relating to the changes in the flow rate crosses the set dynamic threshold. Based on the number of the number of crossings and/or the number of crossings and the timing of such crossings, the controller ascertains the signal sent from the surface for use downhole.
    Type: Application
    Filed: June 29, 2007
    Publication date: January 10, 2008
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Sven Krueger, Thomas Kelch, Joachim Treviranus, Henning Doerge, Marc Kurella
  • Method and apparatus for downlink communication
    Publication number: 20060225920
    Abstract: The present invention provides a method and system in which signals from the surface are sent by changing flow rate of the drilling fluid supplied to the drill string during drilling of a wellbore. The signals are sent based on a fixed or dynamic time period schemes so that the sent signals cross a threshold value in a known manner. A detector measures the changes in the flow rate. A controller downhole determines the number of times a downhole parameter, such as voltage, relating to the changes in the flow rate crosses a predefined threshold value. Based on the number of the crossings and the timing of such crossings, signals are assigned to commands. The controller controls or operates a steering device based on the commands.
    Type: Application
    Filed: March 22, 2006
    Publication date: October 12, 2006
    Applicant: Baker Hughes Incorporated
    Inventors: Joachim Treviranus, Henning Doerge, Marc Kurella