机译:Elastodynamic and finite element vibration analysis of a drillstring with a downhole vibration generator tool and a shock sub
Mem Univ Newfoundland, Fac Engn, Adv Drilling Grp, St John, NF A1B 3X5, Canada;
Shahid Chamran Univ Ahvaz, Dept Mech Engn, Fac Engn, Ahwaz, Iran;
Multi-mode drillstring vibration analysis; downhole vibration generator; shock sub; coupled axial-transverse; finite element analysis; multi-span bottom-hole assembly;