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用ＳＥＭ图片半自动分析方法，对陆东凹陷交南断鼻上侏罗统砂岩储层的２８块样品进行的孔隙分形测量表明，该储层孔隙分形分为沉积分形和成岩分形两大类。沉积分形孔隙是由颗粒表面原始的不规则性产生的，分形维数一般小于２．５０，分形孔隙度小于５％，分形孔隙占总孔隙的１５％以下；成岩分形孔隙是由自生粘土矿物、自生石英和长石溶蚀所产生的，分形维数多大于２．５０，分形孔隙度大于５％，分形孔隙在总孔隙中占５０％～８０％或更高。没有观察到碳酸盐胶结物产生的分形，泥岩中的孔隙几乎全为分形孔隙，而辉绿岩则无分形孔隙。
The fractal dimension of 28 samples collected from 28 samples collected from the sandstone reservoir in the junction of South Yunnan and Upper Jurassic in Luodong Sag shows that the fractal of the reservoir is divided into sedimentary fractal and diagenetic fractal. Deposition fractal porosity is caused by the original irregularity of the particle surface. The fractal dimension is generally less than 2.50, the fractal porosity is less than 5% and the fractal porosity is less than 15% of the total porosity. The diagenetic fractal porosity is composed of authigenic clay minerals, Produced by quartz and feldspar dissolution, the fractal dimension is more than 2.50, the fractal porosity is more than 5% and the fractal porosity is 50% ~ 80% or more of the total pore. Fractals created by carbonate cements were not observed, and almost all of the pores in the mudstone were fractal pores, whereas diabase had no fractal porosity.