Control of torsional vibrations in drill-strings via decomposition of traveling waves

【Author】

Edwin J.Kreuzer;Michael Steidl;

【Abstract】

<正>Torsional vibrations in drill-strings,especially stick-slip vibrations, are detrimental to the drilling process as they slow down the rate of penetration and may lead to failure of the drilling equipment. We present a new method for controlling these vibrations by exactly decomposing the drill-string dynamics into two traveling

【Keywords】

show;very;Control of torsional vibrations in drill-strings via decomposition of traveling waves;

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