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.

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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.

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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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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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