首先探讨了小波变换的基本原理,然后分析了小波分析多尺度因子思想和地层层序变化相一致,从而讨论了划分地层层序的地质依据.对优选的自然伽马测井曲线进行小波变换处理,得到时频图像.利用小波分析多尺度因子思想,再结合地质资料得到恰当的小波系数曲线,划分出研究区不同级别的地层层序.最后总结了本研究地区层序地层的小波变化特征,从而为实现本地区层序地层划分供了一种可行的方法.%The basic principle of wavelet analysis was discussed. And then the idea of wavelet multi-scale factor analysis, which is consistent with stratigraphic sequence, was analyzed. The geologic basis of sequence stratigraphic division with wavelet analysis was discussed. The wavelet transform of optimal gamma ray logging curve was carried out to obtain the time-frequency image. Based on the idea of wavelet multi-scale factor analysis, combined with the geological data, proper scale coefficient curve was obtained, and the stratigraphic sequence in this area was divided. Finally, the characteristics of the wavelet analysis of stratigraphic sequence were summarized, which could provide a quantitative division method for stratigraphic sequence analysis of this area.
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