网络出版日期: 2013-02-20
基金资助
国家高新技术研究发展计划“863”项目“陆上非一致性时延地震、微地震油藏监测方法研究”(编号:2011AA060303)资助
Study on spectral modeling deconvolution in time-frequency domain
Online published: 2013-02-20
陈美婷 , 田景春 , 冯强汉 , 蒙晓灵 , 独育国 , 王峰 . 时频域谱模拟反褶积方法研究[J]. 岩性油气藏, 2013 , 25(1) : 116 -121 . DOI: 10.3969/j.issn.1673-8926.2013.01.022
The energy of seismic wave attenuates continuously in spreading process, and its effective band of frequency amplitude spectrum is striation, which declines the resolution of seismic data. Improved generalized S transform of window function normalized energy holds time resolution constant,and improves the frequency resolution at the same time. Spectral modeling method is drawn in time-frequency domain, in order to avoid the complex window dimension program of the Fourier transform. Spectral modeling method is adapted to the assumption condition that seismic data are smooth and steady signals. Through model experiment and actual seismic data processing, it is proved that this method can improve the resolution of seismic data effectively, which is favorable for thin reservoir identification and fine reservoir description.
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