岩层的水平测向应力 horizontal stress of strata 

围压 confining pressure    有效应力 effective stress 

压持效应 chip hold effect   

岩石的可钻性 drill ability of rock  岩石的研磨性 rock abrasiveness

钻具 drilling tool   钻柱 drill stem    复合钻柱 combination string

满眼钻柱 packed hole assembly 踏式钻铤组合 tapered drill collar string

钟摆钻具 pendulum assembly    

  

偏重钻铤 unbalanced drill collar

钻柱弯曲 buckling of drill string 

钻具的扭转震动 twisting vibration of drill string 

钻杆疲劳破坏 fatigue-failure of drill string  

 

上紧矩 make-up torque

应力减轻槽 stress-relief groove      减震器 vibration dampener

稳定器 stabilizer   井眼大扩器 reamer   钻井液 drilling fluids

水基钻井液 water-base drilling fluids

淡水钻井液 fresh-water drilling fluids

低固相钻井液 low solids fluids

低固相不分散钻井液 low solids non-dispersed polymer drilling fluids

抑制性钻井液 inhibitive drilling fluids

盐水钻井液 salt-water drilling fluids

饱和盐水钻井液 saturated salt-water drilling fluids

钙处理钻井液 calcium treated drilling fluids

钾盐钻井液 potassium drilling fluids

混油钻井液 oil-emulsion drilling fluids