Applications of Spectral Decomposition Technique to Reservoir Prediction

<b<Objective</b< There are some shortcomings using traditional attribute methods in complex seismic data interpretations. for example, it is difficult to pick up the reflective horizons of complex geological body, that inexact to compute seismic attributes along the single interpreted horizon. <b<Materials</b< In this paper a short time spectral decomposition and three dimension tuning technique for three dimension seismic data is introduced. For the thin bed, translate it from time to frequency. <b<Result</b< Utilizing interesting frequency components of limited band seismic wavelets, it could describe inner reflect characters of complex geological body, and find out the horizontal and vertical variable trend of complex reservoir objectively. <b<Conclusion</b< Finally, the examples for predicting Large Cavity and fracture systems in Carbonate Reservoir show that this approach is effective.