Nonlinear Drilling Dynamics with Considerations of Stochastic Friction and Axial and Tangential Coupling

Drill string dynamics research is one of the important research directions in modern oil and gas drilling technology. Aiming at axial vibration, radial vibration, nonlinear vibration with the consideration of stochastic friction and the tooth wear under the action of torsional loads during the drilling process, theoretical analysis, and example calculation are carried out to obtain the parameter influence result of the drilling dynamics research.