前人研究普遍认为，砂岩储层的束缚水饱和度与砂岩类型、孔隙度和孔隙结构有关，粒度中值和孔隙度的影响最大。
It was generally considered that the irreducible water saturation of sandstone reservoirs was related to the sandstone type, porosity and pore structure, especially median size and porosity.
粒度中值和泥质含量与储层物性密切相关，胶结物对孔隙度的影响大于对渗透率的影响。
Middle grain size and mud content have great influence on reservoir properties. the influence of cements on porosity is greater than that on permeability.
粒度分析资料是一个传统的划相指标，洪积扇储层的概率粒度曲线以其粗粒度、宽区间、低斜率为特征。
The probability curves of alluvial fan conglomerate reservoir have the characteristics of coarse-grained, wide-range and low-slope.
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