东营凹陷盐222块沙四段上亚段有效储层识别

针对东营凹陷盐222块砂砾岩岩性复杂，非均质性强，岩石骨架对测井曲线的影响比常规砂岩储层突出的特点，在综合利用岩心、录井和常规测井资料的基础上，分析了盐222块沙四段上亚段的储层特征，建立了有效储层的判断标准，并对砂砾岩的有效储层进行了划分。研究结果表明，东营凹陷盐222块有效储层的物性标准为：岩性标准为含砾砂岩以下（包括含砾砂岩、细砂岩），含油性标准为油斑级以上（包括油斑），孔隙度大于等于6％，渗透率大于等于0．85×10^-3μm^2；有效储层的电性标准为：声波时差大于等于197μs／m，补偿密度小于等于2．57g／cm^3，深侧向电阻率大于等于15Ω·m。据此标准，对盐222块21口井341个层进行了有效储层的判断，有效储层即油层为313个，其中非油层转油层为50个，二次解释的结论与试油结果具有良好的对应性。

Reservoir characteristics and effective reservoir identification in upper Sha4 member of Yan222 block,Dongying Depression.

The glutenite in Yah222 block of Dongying Depression has the features of complex lithology,strong heterogeneity,and more in- fluence of rock matrix on well log than that in the conventional sandstone reservoirs.Reservoir characteristics in upper Sha4 member of Yan222 block were analyzed and the standards of ef- fective reservoir were determined on the basis of coring,geolog- ical logging and conventional well logging data.Standards of physical properties of the effective reservoirs in Yah222 block are as th...