采用有机岩石学与有机地球化学相结合的方法，在详细研究未成熟及低成熟煤成烃源岩有机组分生烃潜力的基础上，将源岩中各种显微组分按生烃潜力大小以壳质组显微组分为标准实现标准化，提出评价煤成烃源岩原始生烃潜力的标准壳质化指数（ＭＥＩ）方法。应用该方法对四川盆地上三叠统煤成烃源岩的生烃潜力进行了评价，并取得了良好的效果。实践证明这种方法是简便有效的 Based on the combination of organic petrology and organic geochemistry, based on a detailed study of the hydrocarbon generation potential of organic components in source rocks of immature and low-mature coals, The size of the standardization of the chitin microstructure as a standard to standardize the evaluation of the original hydrocarbon generating source rock hydrocarbon potential of the standard shell quality index (MEI) method. This method was applied to evaluate the hydrocarbon generation potential of the Upper Triassic coal-forming source rocks in the Sichuan Basin and achieved good results. Practice has proved that this method is simple and effective