TY - JOUR
TI - Analysis on the dynamic characteristics of stick-slip vibration in deep well drill string system
AU - Wang Long
AU - Han Zhengbo
AU - Wang Jinduo
AU - Guo Liurui
AU - Li Rui
JN - Thermal Science
PY - 2024
VL - 28
IS - 2
SP - 1161
EP - 1167
PT - Article
AB - In this paper, based on the non-linear mechanics theory of the drill pipe, a mechanical model of stick-slip vibration of the drill pipe has been established by considering the torsional properties of the drill pipe, kinetic energy and the motion law of the bit. The example calculations and sensitivity analysis of the parameters are carried out. The results show that increasing the rotational speed, viscous damping, length of the drill collar and de-creasing the weight of bit have the effect of suppressing the stick-slip vibration.