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Estimating cone rotation speeds from roller cone bit vibration
drilling roller cone bit tooth wear diagnosis cone rotation speed
2009/5/8
Real-time diagnosis of bit wear while drilling has been a fundamental interest for drilling engineers. It has been inferred from previous studies that the degree of tooth wear for a roller cone bit ...
Dynamics modeling of roller cone bit axial vibration
drilling roller cone bit axial vibration bit wear dynamics modeling
2009/5/8
It has been reported in previous studies that dominant peaks of a power spectrum for roller cone bit axial vibration moved to higher frequencies as the bit tooth wear progressed. This experimental re...