【摘要】 温西三块注水开发20多年来,油层物理性质、参数大小及测井响应发生明显而复杂的变化,水淹层中注入水强烈冲刷,岩石孔隙度、渗透率均有不同程度变化,利用岩石物理相分类精细研究了其水淹层孔隙度、渗透率建模。通过油区测井、岩心和试油试采资料,分类建立的水淹层孔隙度、渗透率模型,其数据点均匀程度及其线性关系有明显集中分布趋势。特别是分类模型利用分类声波时差、中子孔隙度参数综合拟合值求取孔隙度;渗透率采用分类的多种测井响应综合评估确定,提高了水淹层孔隙度、渗透率参数计算精度,为准确计算水淹层孔隙度、渗透率提供了有效分析方法。更多还原

【Abstract】 Wenxisan block have been water-flooding development for more than 20 years,and variations of reservoir physical property,parameters and log response are obvious and complicated.And its porosity and permeability would be improved more or less in cause of injected water flushing.Studied is water flooded reservoir parameters precision modeling by using petrophysical facies classification.With logging,core and production test data,classification establishment of water flooded layer parameter model is given,and linear relationship between the degree of uniform data points and reflection shows relatively concentrated trend.Especially,the classification models are compensated neutron porosity parameters fitted to obtain comprehensive porosity;Permeability uses a variety of logging responses for classification and comprehensive evaluation,effectively improves and enhances the water flooded layer porosity and permeability parameters calculation accuracy.It provides an effective method to accurately calculate reservoir parameters of the swept layer.更多还原