Abstract: coal-bed gas as a clean energy resource is closely related to coal resources and regarded as an unconventional natural gas with both source and reservoir. In South China, nine sets of coal measure strata have been found, but the exploration and development of them mainly lie in the Longtan formation of Upper Permian and the Anyuan formation of Upper Triassic. This paper presents the prospective evaluation of 25 blocks with preferable coal-bed gas conditions, of which Class-1 consists of seven blocks, Class-2 of six blocks, Class-2 to-3 of three blocks and Class-3 of eight blocks. The areas of Huainan, Xuhuai, Liupanshui, Zhina, Qianbei, Fuyuanenhong and Guiyang are the seven large-scale and advantageous blocks with enriched coal-bed gas accumulations.

Key words: China, coal-bed gas, coal measure strata, cleat, prospecting evaluation