Distributed sensors-controller for active vibration damping...

Details Distributed sensors-controller for active vibration damping... Distributed sensors-controller for active vibration damping...

2008-03-17

2011-10-25

Neuder, William P (Department: 3672)

Boring or penetrating the earth

Automatic control

Of boring means including a below-ground drive prime mover

C175S045000

Reexamination Certificate

active

08042623

ABSTRACT:
An apparatus for controlling a vibration of a drill string, the apparatus including: a plurality of sensors in operable communication with the drill string; and a controller in operable communication with the plurality of sensors, the controller connectable to a drill string motivator and capable of outputting a signal to the drill string motivator to control the vibration of the drill string.

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A. A. Besalsow, et al. “Development of a Surface Drillstring Vibration Measurement System”. SPE 14327. Sep. 22-25, 1985. 14 pages.

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