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主要论述以上古生界为烃源岩的典型煤型气藏的地球化学特征、形成时的构造环境与气藏类型及找气前景。华北聚煤区为最有利地区，并总结出煤型气藏形成的２种构造环境和４种成藏类型：裂谷活动构造环境中的古潜山自生自储型（苏桥型）、古生新储型（文留型）和克拉通稳定构造环境中的复合型（鄂尔多斯型）及自生自储型。前述４种气藏类型应为今后该区煤型气勘探的主要类型。此外，还对上述两种构造环境中的煤层气问题进行了扼要讨论。
Mainly discusses the geochemical characteristics of the typical coal gas reservoirs above the Paleozoic source rocks, the tectonic environment and gas reservoir types and the prospect of looking for gas during the formation. The North China coal accumulating area is the most favorable area, and two kinds of tectonic setting and four types of accumulating types of the coal type gas reservoirs are summarized: the buried volcanic authigenic reservoir type (Suqiao type) in rift activity tectonic setting, (Ordos-type) and spontaneous self-storage in the new deposit type (Wenjian type) and the Cratonic stable tectonic environment. The above four types of gas reservoirs should be the main types of coal gas exploration in the area in the future. In addition, a brief discussion on the CBM issues in the two tectonic settings above is also given.