致密砂岩孔隙度计算方法

A Method to Calculate Porosity of Compact Sandstone

鄂尔多斯盆地北部下二叠系下石盒子组为纵横向变化大,岩性、孔隙结构等复杂的河流相地层,很难用统一的计算公式来完成对孔隙度的计算。采用多元统计分析、散点图和孔隙度对比图来确定其孔隙度。运用上述方法,比较精确地确定鄂尔多斯盆地北部下二叠系下石盒子组的孔隙度,对鄂尔多斯盆地油气储量的估计,提供一个很好的基础资料。

Because of the vertical and transverse variety of lithology,porosity and pore structure in complex strata of river face in Xiashihezi group of lower Permian in northern part of E ordos Basin,it is difficult to calculate porosity only use one porosity log.In order to determine formation porosity,we use multivariate analysis.discrete map and the contrast fig of porosity to dispose data of logging in Xiashihezi group of lower Permian.With these methods we can accurately determine porosity in Xiashihezi group o...