Hua-Cai Fu

Study on the influence law of stiffness and damping of shock absorber based on drill string vibration

With the increasing number of deep wells, ultra-deep wells and ultra-deep wells, the problem of drill string vibra-tion damage is becoming more and more obvious. Shock absorbers are commonly used to reduce vibration. However, the existing research has not fully revealed the influence of shock absorber stiffness and dam...