A high-fidelity model for nonlinear self-excited oscillations in rotary drilling systems

Keyphrases

• High-fidelity Model 100%
• Drill String 100%
• Stick-slip 100%
• Self-oscillation 100%
• Rotary Drilling System 100%
• Bit Design 100%
• Self-excitation 66%
• Frictional Contact 66%
• State-dependent Delay 66%
• Cutters Layout 66%
• Law 33%
• Partial Differential Equations 33%
• PDCs 33%
• Interaction Model 33%
• Cutter 33%
• Rock Cutting 33%
• PDC Bit 33%
• Galerkin Method 33%
• Friction 33%
• System of Ordinary Differential Equations 33%
• Rock Properties 33%
• Rate-independent 33%
• Torsional Vibration 33%
• Axial Vibration 33%
• Hysteresis 33%
• Wear Flat 33%
• Depth of Cut 33%
• Multiple Delays 33%
• Ordinary Differential Equations 33%
• Configuration Parameters 33%
• Chebyshev Polynomials 33%
• Multi-degree-of-freedom (multi-DOF) 33%
• Velocity Weakening 33%
• Torque on Bit 33%
• Reactive Torque 33%
• Reactive Force 33%
• Depth Variation 33%
• Nonlinear Boundary Conditions 33%
• Drilling Parameters 33%
• Drillstring Dynamics 33%
• Rock Bit 33%
• Polynomial Transformation 33%
• Drilling Practice 33%
• Offset Angle 33%

Engineering

• Frictional Contact 100%
• Model Fidelity 100%
• Rotary Drilling 100%
• Simulation Result 50%
• Degree of Freedom 50%
• Parametric Study 50%
• Axial Vibration 50%
• Drilling Parameter 50%
• Torsional Vibration 50%
• Field Test 50%
• Cutting Depth 50%
• Boundary Condition 50%
• Partial Differential Equation 50%