1. Case studies of the bending vibration and whirling motion of drill collars;Vandiver;Society of Petroleum Engineers Drilling Engineering,1990
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4. The genesis of torsional drillstring vibrations;Brett;Society of Petroleum Engineers Drilling Engineering,1992
5. W.D. Aldred, M.C. Sheppard, Drillstring vibrations: a new generation mechanism and control strategies, Proceedings of the 67th Annual Technical Conference and Exhibition, Washington, DC, 1992, SPE Paper No. 24582.