03-04-2013 дата публикации
Номер: CN103018774A
Принадлежит:
The invention relates to a method for keeping signal to noise ratio and enhancing seismic record resolution, which is applied to the field of seismic exploration signal processing. The method mainly comprises the following steps of: manually exciting and recording a seismic signal; carrying out the conventional seismic signal processing, namely noise suppression, deconvolution, velocity analysis, excursion, and the like, on the seismic signal; estimating a seismic wavelet amplitude spectrum; estimating a signal purity spectrum; computing a deconvolution filtering operator by utilizing the seismic wavelet amplitude spectrum and the signal purity spectrum, and carrying out deconvolution processing on a seismic record; and drawing the seismic record into a seismic section image capable of reflecting underground structural features. The seismic record processed by the method disclosed by the invention can better identify the geologic structure and the fracture system which are smaller in size ...
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