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利用大港油田291块岩心相对渗透率实验数据,统计获得油水有效渗透率与空气渗透率、束缚水与残余油之间统计关系;并利用归一化下的多条油水相对渗透率平均法,获得归一化下的平均相对渗透曲线及平均相对渗透率曲线。通过现场利用平均相对渗透率曲线,结合C/O饱和度测井结果,计算地层产水率,与生产井动态数据基本吻合,提高了C/O饱和度解释的精度,对指导油田开发具有重要意义。
Based on the experimental data of core permeability of 291 cores in Dagang Oilfield, the statistical relationship between effective permeability of oil and water, air permeability, irreducible water and residual oil was obtained. Based on the normalized multiple relative permeability of oil and water, Average relative permeability curve and average relative permeability curve under normalization. Through the on-site utilization of average relative permeability curve, combined with C / O saturation logging results, the calculation of formation water production rate basically coincides with the production well dynamic data, which improves the accuracy of C / O saturation interpretation and is important for guiding oilfield development significance.