Sequence Stratigraphy Identification Based on Wavelet Energy Spectrum and Wavelet Curve
详细信息
- 责任者：Yang Yongqiang (College of Geoscience and Technology ; China University of Petroleum ; Qingdao 266555 ; China) ; Qiu Longwei
- 刊名：Oil Geophysical Prospecting
- 出版年：2011
- 卷期：46(5)
- 关键词：测井曲线 ; logging curves ; 小波变换 ; wavelet transform ; 层序划分 ; sequence classification
- 页码：p.783-789
- 图表：4 illus., 2 tables, 13 refs.
- 分类号：1600
- 出版序号：2004
- issnNo：ISSN1000-7210
- isbnNo：CN13-1095/TE
摘要
Based on time-frequency analysis of wavelet transform, the authors discuss in this paper the principle of wavelet base selection, and the feasibility and stability of stratigraphic sequence identified by wavelet analysis. The authors set up wavelet energy spectrum and geological models of sequence stratigraphy divided by wavelet curves. Compared with traditional method, this method would make full use of inner structure information of logging signals to identify sequence boundary, and its high efficiency and visualization provide foundations for sequence identification.