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老君庙油田 M 油层是一个渗透率低、含油饱和度低、裂缝发育、60—70米剖面连续含油和沉积厚度稳定的砂岩油层。在油层内部无连片稳定的泥岩隔层,也无较稳定的砂岩层。油层内渗透率差异大,非均质系数达2.87—14.7,是个非均质性较强的厚层块状砂岩体。对达样的油层用常规的孔隙度、渗透率描述储集岩石的特征足不够的。因为控制储层储集性能和产能的因素是孔隙的形状、大小及其分布,也就是岩石孔隙结构特征控制着储层。因此,我们
The Laojunmiao M field is a sandstone reservoir with low permeability, low oil saturation, fractured development and continuous oil-bearing and sedimentary thickness stability in the 60-70 m section. No contiguous stable mudstone interiors in the reservoir and no more stable sandstone layers. The difference of permeability in the reservoir is large, and the heterogeneity coefficient is 2.87-14.7, which is a thick heterogeneous block massive sandstone body. It is not enough to describe the characteristics of reservoir rocks using the conventional porosity and permeability of the sample reservoirs. Because the factors that control reservoir reservoir performance and productivity are the shape, size, and distribution of pores, that is, the pore structure of the rock controls the reservoir. therefore, we