Patents Represented by Attorney Matthias Abrel

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  • Rotary downlink system
    Patent number: 7298285
    Abstract: A method for downlink communication with a downhole tool having a mud-powered downhole motor that includes receiving a sensor signal related to a rotational speed of a rotor in the mud-powered downhole motor, and interpreting the sensor signal to derive a downlink signal.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: November 20, 2007
    Assignee: Schlumberger Technology Corporation
    Inventor: Keith Alan Moriarty