The main aim for modeling barrier /interlayer is to trace the 3D distribution of barrier/interlayer through new and valid technologies and theories such as microfacies analysis, reservoir heterogeneity description, stochastic modeling and geostatistics. The modeling results show that the distribution of barrier and interlayer in BZ25-1S oil filed is complex, and the sandstone distribution is mulitlayer like. Barrier distribution is wide, but interlayer distribution is local. The scissors -like sandbodies among barrier can induce bottom water influx during perforation.
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