Research and Application of Multi-Wavelet Decomposition and Reconstructing Technology
详细信息
- 责任者：Xu Tianji (State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Shen Zhongmin
- 刊名：Journal of Chengdu University of Technology
- 出版年：2010
- 卷期：37(6)
- 关键词：地震勘探 ; seismic exploration ; 四川 ; Sichuan Province
- 页码：p.660-665
- 图表：5 illus., 7 refs.
- 分类号：1600
- issnNo：ISSN1671-9727
- isbnNo：CN51-1634/N
摘要
When the seismic data are decomposed, by the arithmetic of matching pursuit,the wavelet dictionary will be established by a series of Morlet wavelet functions with various frequencies. When the seismic data are reconstructed, according to the requirement of oil-gas response and geology phenomena, the dictionary will be filtered and optimized firstly, and then, the Morlet wavelet functions will be linearly summed by the frequency attribute. The process of decomposing and reconstructing seismic data can combine the time field with the time-frequency field seismic data to interpret and overcome the cognition localization of geology phenomena and oil-gas response character in the single field.
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