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Spectra-Weighted Adaptive Band-Pass Filtering Fusion of Instantaneous Spectral Data
详细信息   
摘要

    

In
    order to quickly extract reservoir characteristics from seismic spectral
    decomposition data, the authors present a data fusion method to map features in
    both peak amplitude and peak frequency attributes, which uses
    frequency-dependent adaptive bandwidth-varied filter of Gaussian basis function.
    Such basis function can reflect the inherent characteristics of seismic signal
    in time-frequency domain, i.e. higher frequency resolution at lower frequency
    and lower frequency resolution at higher frequency. Then, the authors choose
    the peak amplitude as the weighting, and map the two spectral decomposition
    attributes into one true color fusion volume. The field example demonstrates
    that it can delineate reservoir spatial distribution, its geometry, its
    relative thickness and its petroliferous feature. It is feasible to quickly
    extract geologic feature of interests and improve the efficiency in
    
interpretation.


    
    


    
    

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