四川盆地南部下寒武统筇竹寺组页岩沉积微相研究

页岩气是我国未来一个重要的且比较现实的非常规油气资源,加强该领域的基础研究对页岩气油气成藏理论创新、页岩气开采技术运用和资源量的准确计算都非常必要.因此,本文运用野外露头资料、钻取岩芯和测井资料,以及页岩有机地球化学分析化验结果等大量第一手资料,通过详细分析四川盆地南部下寒武统筇竹寺组页岩沉积微相特征及其含气性特征,并结合研究区沉积相标志和测井相特征,明确指出泥质深水陆棚微相是四川盆地南部下寒武统筇竹寺组优质页岩最有利沉积微相带.

The sedimentary micro-facies of the Lower Cambrian Qiongzhusi formation in southern Sichuan Basin

Shale gas is one of the most important and realistic unconventional gas resources for China's future. Strengthening the basic research in such field has great significance in the theoretical innovation of shale gas hydrocarbon accumulation, utilization of shale gas mining technology and accurate calculation of resources. Therefore, based on a large number of first hand information, such as field outcrops data, drilling cores and logging data, organic geochemical analysis and test results for shales, the study analyzed in details the characteristics of shale sedimentary micro facies and gas bearing of the Lower Cambrian Qiongzhusi Formation in southern Sichuan Basin. Combined with the sedimentary facies marks and logging phase, the results indicate that the muddy deep water shelf micro facies is the favorable sedimentary micro facies for the Quality shale of Lower Cambrian Qiongzhusi Formation in the southern Sichuan basin.