基于小波变换和希尔伯特变换的N_(2)红土层厚度识别方法研究——以西北地区崔木矿区为例

Research on Thickness Identification Method of N_(2) Laterite Layer Based on Wavelet Transform and Hilbert Transform——Take Cuimu Mining Area in Northwest China as an Example

西北地区N红土层其区域煤层上覆有关键隔水层,其厚度对于浅表层水资源保护具有重要意义。文章以西北地区崔木矿为研究区,结合小波变换和希尔伯特变换技术,利用测井曲线和三维地震资料,对区内N红土层厚度进行了研究。首先通过模型研究,得出了利用测井曲线确定N红土层厚度的特征规律。在此基础上,对实际数据进行了处理,得到研究区内N红土层厚度分布结果。该研究结果可为西北地区浅埋煤层开采时浅表层水资源保护提供参考。

The Nlaterite layer in northwest China is covered with key aquiclude on the regional coal seams, and its thickness is of great significance for the protection of shallow water resources. In this paper, the thickness of Nlaterite layer in Cuimu mine in northwest China is studied by using logging curve and 3D seismic data, combining wavelet transform and Hilbert transform technology. Firstly, the characteristic law of determining the thickness of Nlaterite layer by using logging curves is obtained through model study. On this basis,the actual data are processed and the thickness distribution of Nlaterite layer in the study area is obtained. The research results can provide a reference for the protection of shallow water resources during the mining of shallow coal seams in northwest China.