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选择合适的尺度，可用盒维数方法计算四川盆地油气田空间分布的容量维值；但运用多重分形理论能更有效地检验断层空间分布的自相似性。四川地区各带多重分维值的结果表明：油气田和断层的空间分布均为分形结构，具有很好的自相似性，相关系数均达到或超过０．９９；油气田与断层空间分布上有密切关系，断层空间分布的容量维、信息维及关联维在１．０２，１．０３及１．０４左右的区域，是油气的主要富集区。因此，四川地区应加强川东南、川中以及绵阳－乐山－带的油气勘探开发，其它区域的勘探重点应放在深层次的油气藏上。
Choosing a suitable scale, the box dimension method can be used to calculate the spatial dimensionality of the spatial distribution of oil and gas fields in the Sichuan Basin. However, the multifractal theory can be used to test the self-similarity of the spatial distribution of faults more effectively. The results of multiple fractal dimension values in Sichuan show that the spatial distribution of oil and gas fields and faults are all fractal structures with good self-similarity and the correlation coefficients all reach or exceed 0.99. The oil and gas fields are closely related to the spatial distribution of faults The volumetric dimension, the information dimension and the correlation dimension of the fault spatial distribution are in the areas of 1.02, 1.03 and 1.04, which are the major oil and gas accumulation areas. Therefore, the exploration and development of oil and gas in the areas of southeastern Sichuan, central Sichuan and Mianyang-Leshan-strata should be strengthened in Sichuan and exploration in other areas should be focused on deep-seated oil and gas reservoirs.