Reservoir prediction method and application based on waveform indication inversion
Due to the heterogeneity of reservoir development,the coincidence rate between the channel sand body depicted by logging data and the actual inter well sand body is low,and the continuity and scale of sand body are uncertain.In order to improve the predic-tion accuracy of the reservoir,taking the Puyi oil layer formation of Gaotaizi Oilfield in the southern part of Daqing Changyuan as an ex-ample,the method based on the combination of waveform indication inversion slice and logging data was used to optimize the waveform indication inversion parameters suitable for the study area,and the well-seismic combination sedimentary microfacies prediction was car-ried out for each small layer in the study area.The results show that the waveform indication inversion results have better vertical resolu-tion ability,and the high-precision inversion results obtained by using the optimized inversion parameters can well reflect the reservoir development characteristics of the study area.The resistivity inversion volume of waveform indication inversion method with high correla-tion with the target layer is selected,and its inversion slice can be used to predict the continuity and geometric shape of underwater dis-tributary channel sand body,which has higher prediction accuracy of crosswell sand body,and can provide technical support for impro-ving the prediction accuracy of crosswell reservoir in the study area.
waveform indication inversionunderwater distributary channelsand body depictionwell-seismic combination
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