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This document presents a kinetic model for analyzing vibrations in drilling bits. The model demonstrates that drill bits undergo a wobbling motion when drilling, rather than a whirling motion as previously thought. This wobbling causes cyclic impact loads that damage PDC drill bit cutters. Sensitivity analysis identifies solutions to reduce bit wobbling, such as using stabilizers, absorbers, stiff drill collars, and viscous drilling fluids. The kinetic model provides an alternative to the existing bit whirl

Author

pendexx

Language

EN