新疆石油地质 ›› 2007, Vol. 28 ›› Issue (3): 355-358.

• 应用技术 • 上一篇    下一篇

基于小波时频分析的测井层序地层划分方法

陈钢花, 余杰, 张孝珍   

  1. 中国石油大学 地球资源与信息学院, 山东 东营 257061
  • 收稿日期:2006-09-29 修回日期:2006-11-28 出版日期:2007-06-01 发布日期:2020-07-31
  • 作者简介:陈钢花(1963-), 女, 浙江东阳人, 教授, 在读博士研究生, 地球物理测井,(Tel) 13805468845(E-mail) shidayujie@163.com.

Logging Sequence Stratigraphic Division Based on Wavelet Time-Frequency Analysis

CHEN Gang-hua, YU Jie, ZHANG Xiao-zhen   

  1. College of Geo-Resources and Information, China University of Petroleum, Dongying, Shandong 257061, China
  • Received:2006-09-29 Revised:2006-11-28 Online:2007-06-01 Published:2020-07-31

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。

关键词: 小波变换, 时频分析, 测井, 层序, 地层划分

Abstract: This paper introduces the basic principle and procedure of wavelet time-frequence analysis and discusses the geologic basis of sequence stratigraphic 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.

Key words: wavelet transform, time-frequency analysis, well logging, sequence, stratigraphic division

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