内蒙地区在早白垩纪有着较好的成煤环境,形成了一定规模的煤层。虽然煤变质程度普遍不高,但厚度较大,对于煤层气的形成和开采有着可观的前景。本文从沉积和层序地层的角度出发,划分三级层序并从中识别沉积体系,恢复其古地理,进而研究总结其聚煤规律,并从煤层厚度、埋深、顶板岩性、煤质等方面进行探讨,对其煤层气开发前景进行分析。 Inner Mongolia had a good coal-forming environment in the Early Cretaceous and formed a certain size of coal seam. Although coal metamorphism is generally not high, but the thickness is large, for the formation and exploitation of coalbed methane have considerable prospects. Based on the sedimentary and sequence stratigraphy, this paper divides the third-order sequence and identifies the sedimentary system and restores its paleogeography, and then summarizes the law of its coal accumulation. From the aspects of coal seam thickness, burial depth, roof lithology, coal quality and so on Explore the prospect of coalbed methane development.