Abstract:Based on the ratio of sediment supply to accommodation space,we divide Neogene meander fluvial facies sedimentary sand bodies in the target area into the following inter-bedded types:superposition type,side-superposition type,and isolated type.Then we compare seismic response characteristics of the different type sand bodies with well-seismic calibration and substratum correlation.Finally we conduct the seismic attribute clustering analysis of these type sand bodies with 7 sensitive seismic attributes:RMS amplitude,various amplitude,mean amplitude,effective bandwidth,arc length,peak frequency,and energy half time.So we obtain RMS amplitude and a seismic attribute clustering plan of the Layer Nm Ⅱ-3.The logging data proves that our approach can accurately predict this kind of fluvial facies inter-bedded sand reservoirs.
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