Logging Sequence Stratigraphic Division Based on Wavelet Time-Frequency Analysis

Abstract

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

CLC Number:

P631.84

CHEN Gang-hua, YU Jie, ZHANG Xiao-zhen. Logging Sequence Stratigraphic Division Based on Wavelet Time-Frequency Analysis[J]. Xinjiang Petroleum Geology, 2007, 28(3): 355-358.

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Logging Sequence Stratigraphic Division Based on Wavelet Time-Frequency Analysis

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