摘要
介绍了小波变换时频分析的基本原理和步骤,探讨了利用小波分析方法划分地层层序的地质依据,通过对理想层序地层模型的分析,总结了层序界面在时频能量图和小波系数曲线上的特征。对测井信号进行小波分析,选用合适的尺度划分不同级别的层序,为层序地层分析特别是高分辨率层序地层分析提供了一种可行的定量划分方法。
This paper introduces the basic principle and procedure of wavelet time-frequence analysis and discusses the geologic basis of sequence stratigraphie division with wavelet analysis. By analyzing the ideal model of sequence stratigraphy, the characteristics of sequence interface on the time-frequency energy chart and wavelet coefficient plot are summarized. Besides, with the wavelet transform of logging signals and selected proper scale, the sequences of different levels are classified, which provides a quantitative division method for sequence stratigraphic analysis, especially for high-resolution sequence stratigraphic analysis.
出处
《新疆石油地质》
CAS
CSCD
北大核心
2007年第3期355-358,共4页
Xinjiang Petroleum Geology
关键词
小波变换
时频分析
测井
层序
地层划分
wavelet transform
time-frequency analysis
well logging
sequence
stratigraphic division
