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沁水盆地石炭-二叠系中煤储层发育,但不同的煤储层在分布范围、厚度、储集物性等方面有明显的差异．从沉积学和层序地层学的角度,探讨了控制优质煤储层发育和分布的因素．研究表明,本区优质煤储层主要形成于潮坪和三角洲平原上的泥炭沼泽环境,而且总体上,潮坪上形成的煤储层的横向连续性比三角洲平原上形成的要好．海平面升降对煤储层的纵向分布以及平面上的分布范围有重要控制作用,总体上高位体系域(尤其是晚期)形成的煤储层丰度高、厚度大、分布范围广,有利于形成优质煤储层；海侵体系域形成的煤储层丰度低、厚度小、分布范围较小,不利于优质储煤层的形成．
The Qinshui Basin Carboniferous Permian coal reservoir is developed, but different coal reservoirs have obvious differences in distribution range, thickness and reservoir properties. From the perspective of sedimentology and sequence stratigraphy, the factors controlling the development and distribution of high-quality coal reservoirs are discussed. The study shows that the high-quality coal reservoirs in this area are mainly formed in the peat bog environment on the tidal flat and delta plain, and generally, the lateral continuity of the coal reservoirs formed on the tidal flat is better than that formed on the delta plain. The sea level rise and fall have an important control over the vertical distribution of coal reservoirs and the distribution range on the plane. Generally speaking, coal reservoirs formed in the highstand system tract (especially in late stage) have high abundance, large thickness and wide distribution, which is favorable for the formation High-quality coal reservoirs. The coal reservoirs formed in the transgressive system tract have low abundance, small thickness and small distribution range, which is unfavorable to the formation of high-quality coal seams.