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Viesearch·
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Anonymous·
DYNAMICS VIBRATION PREDICTION AND COMPARISON WITH DOWNHOLE DATA MEASUREMENTS IN UNCONVENTIONAL WELLS
During drilling operations, high drillstring vibrations may originate from various sources, namely, the bit-rock interaction, drillstring-wellbore contacts, stick-slip phenomena, fluid-structure interaction, and mass unbalances. Excessive vibrations may induce drilling equipment failures (fatigue, cracking, washouts, and ruptures), which can be costly and catastrophic. Therefore, it is crucial to accurately model the drillstring dynamics in order to help drilling engineers make better...