At the same deviation, the big WOB can be applied to increase the penetration rate in the straight hole. 在防斜效果不变的情况下，可采用较大钻压钻进，大大提高了直井段的机械钻速。
Evaluation of formation drill-ability anisotropy has important effect for preventing deviation of straight holes and planning drilling trajectories of directional wells. 地层可钻性各向异性评价在直井防斜以及定向井井眼轨迹控制中具有重要的意义。
