Abstract: Yangtze Platform is the main oil and gas producing region in South China, where shale gas is abundant. There are four sets of black carbonaceous shale in the region, of which Qiongzhusi Formation (Niutitang Formation) in the lower section of Cambrian System and Longmaxi Formation of Silurian System of Lower Paleozoic are widely distributed with a large thickness, a high content of TOC and an appropriate Ro value. The prospective and technically recoverable reserve of shale gas is enormously considerable. Longmaxi Formation is distributed in five black shale basins along the Yangtze River – Yibin, Fuling, Yueyang, Xuancheng and Jurong. The thickness is higher than 100 meters and TOC more than 2 percent. Qiongzhusi Formation is distributed in three north-east echelon basins south of the Yangtze River – Sichuan-Yunnan, Hunan- Guizhou and Southern Anhui. The thickness is higher than 120 meters and TOC more than 2 percent. The shale horizons of Qiongzhusi Formation and Longmaxi Formation in China can match up to the shale horizons in the United States in terms of various indexes, but the Ro value of China’s shale horizons is slightly higher. Those two horizons are estimated to have shale gas resources of (417.44-423.97) ×1012m3 and recoverable resources of 13×1012m3, indicating that the Yangtze region is rich in shale gas resources. However, the geological structure and geographic environment are very complicated in this region, with a high density of population. The US experiences can be duplicated in the efforts for exploration and development. Exploration and development should be focused on Sichuan Basin and then gradually expanded outwardly, following China’s own shale gas exploration and development style and constructing the shale gas bases to support the Yangtze Economic Belt.

摘要： 扬子地台是我国南方主要产油气区，页岩气蕴藏极为丰富，共有4 套黑色碳质页岩，其中以下古生界寒 武系下部筇竹寺组（牛蹄塘组）和志留系龙马溪组分布广、厚度大、TOC 含量高、Ro 值适中，页岩气远景资源量和技 术可采资源量巨大。龙马溪组沿长江有宜宾、涪陵、岳阳、宣城、句容5 个黑色页岩盆地，其厚度大于100m，TOC 大于2%。筇竹寺组在长江南有3 个北东向斜列的川滇、湘黔、皖南盆地，厚度大于120m，TOC 大于2%。与美国的 页岩气层相比，我国这两组的页岩层指标不逊色，只是Ro 值偏高。对这两层页岩估算，页岩气资源量为（417.44 ～ 423.97）×1012m3，技术可采资源量为13×1012m3，表明扬子区页岩气资源丰富，但地质结构、地理环境较复杂，人口 密度大。在勘探开发上不能照搬美国的经验，应先易后难，以四川盆地为基础，逐步向外扩大，走中国式的勘探开发 页岩气之路，逐步建成与长江经济带配套的页岩气基地。

关键词: 扬子地台, 寒武系, 志留系, 页岩气, 资源量