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Estimation of the drill bit angular velocity using accelerometer measurements and extended Kalman filters

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3 Author(s)
Soroush, A. ; Dept. of Electr. & Comput. Eng., Curtin Univ., Bentley, WA, Australia ; Richard, T. ; Nordholm, S.

In this paper, an extended Kalman filter model is proposed to estimate the angular velocity of a drilling shaft based on the accelerometer measurements of a downhole recording tool mounted on the drill rod. The method allows tracking the severity of torsional vibrations in real-time. The results outline the advantages of the proposed method in particular its ability to capture events of backward rotation known to be very detrimental to the life of drill bits.

Published in:

Image and Signal Processing and Analysis (ISPA), 2011 7th International Symposium on

Date of Conference:

4-6 Sept. 2011

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