测井放磁图接箍主峰倾斜校正算法

Incline Correction Algorithm of Coupling Main Peak of Magnetic Release Map in Well Logging

测井放磁图在扫描输入时产生的倾斜会对CCL曲线接箍主峰深度提取产生很大的影响。提出了一种测井放磁图接箍主峰倾斜校正算法。该算法通过先进行CLR深度预处理,再利用改进的Hough变换,克服了传统Hough变换计算量偏大、速度慢的弱点;而且实现了大范围、高精度的放磁图接箍主峰倾斜校正,具有较强的实用价值。

The incline of magnetic release map in well logging from scanning input will have a large impact on depth extraction of CCL curve coupling main peak.A correction algorithm of coupling main peak incline is presented.This algorithm is carried out through CLR depth pretreatment first,then using the improved Hough transform.The algorithm overcome the weaknesses of large computation and slowness of traditional Hough transform,and achieves a large-scale,high-precision correction of coupling main peak incline in magnetic release map.This algorithm provides a strong practical value.