实例证明，用该方法能较准确的计算出一段时间内某钻进参数的变化趋势，可以用于井内工况识别。
The instance proves that this methods can calculate out the variation tendency of the parameters accurately in some time, and can be used in discerning bottom well operating modes.
在此方法中，假设井段是空间斜平面上的圆弧，对于滑动钻进方式，圆弧是非常合理的井眼轨迹曲线。
If the section is a circular arc in the spatial slanting plane, the circular arc is the extremely reasonable bore hole path curve for slide drilling in minimum curvature method.
大斜度定向井斜井段易形成的岩屑床影响钻进速度、威胁钻井施工安全。
Cuttings bed is formed easily in inclined section of high Angle directional well. It affects drilling speed, threatens drilling safe.
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