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对西南地区二叠系层序格架与烃源岩分布关系的研究表明，不同成因类型盆地的层序格架不同，其中的烃源岩特征及分布亦存在差异。总体而言，西南地区二叠系层序格架中的有利烃源岩主要包括：①ＬＳＴ期台盆相泥质灰岩和深水盆地相黑色页岩；②ＴＳＴ期克拉通台地、缓坡、孤台海侵碳酸盐岩；③ＨＳＴ期克拉通缓坡、台地、孤台（含煤）碳酸盐岩、台盆相灰泥—硅灰岩和深水盆地相硅泥岩。图２表１参１８（梁大新摘）
The study of the relationship between the Permian sequence framework and the source rock distribution in the southwestern region shows that the sequence stratigraphic frameworks of the different generative basins are different, and the characteristics and distribution of source rocks are also different. In general, the favorable hydrocarbon source rocks in the Permian sequence framework in southwest China mainly include: (1) phase lithospheric limestone in the basin stage of the LST phase and black shale in the deep-water basin in the LST stage; (2) cratonic platform, gentle slope, Carbonate rocks; ③ HST stage cratonic gentle slope, platform, solitary platform (coal-bearing) carbonate, platform facies stucco-wollastonite and deep-water basin facies siliceous mudstone. Figure 2 Table 1 Reference 18 (Liang Daxin Abstract)