The general principle of the integral method is discussed in this paper. Then the oriented integral surveying method using gyro theodolite is derived.

本文讨论了积分法的一般原理，并推导了陀螺经纬仪定向积分测量法。

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Near-vertical wells have no reference to the high side of the well rendering inclinometers ineffective. To facilitate accurate gun positioning an oriented gun hanger would need to be set using a gyro.

由于倾角仪在这种接近垂直的井中会失去效果，故工具无法参考其朝上的那端来做射孔方向定位。

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