The bigger the effective eccentricity, the higher the upper drill string's lifting force, the higher the positive pressure on casing/drill string, and the more serious the wear.
The bigger the effective eccentricity, the higher the upper drill string's lifting force, the higher the positive pressure on casing/drill string, and the more serious the wear.
有效偏心距越大，上部提升力越大，套管／钻柱之间的正压力将越大，磨损将越产重。