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四川盆地川中地区须家河组天然气有良好的勘探前景,综合利用钻井取心分析资料、井下测试资料、地震资料等资料为基础,结合沉积学、石油地质学、地球物理学、有机地球化学等多学科理论和研究方法,对须家河组天然气成藏规律进行研究,研究表明:川中地区须家河组烃源岩主要分布在须三段和须五段,其特点为分布广、厚度大、生烃潜力大,油源对比表明须家河组天然气是自生自储的煤型气。储层物性和构造是天然气运聚成藏的主要控制因素,主要成藏模式是天然气近源运聚成藏。
Based on the well coring analysis data, downhole test data and seismic data, the natural gas of Xujiahe Formation in central Sichuan Basin, Sichuan Province, has a good exploration prospect. Based on the data of sedimentology, petroleum geology, geophysics and organic geochemistry Multidisciplinary theory and research methods, the natural gas accumulation in the Xujiahe Formation is studied. The results show that the source rocks of the Xujiahe Formation in central Sichuan are mainly distributed in Xujiahe and Xuchang sections, which are characterized by wide distribution and large thickness , Hydrocarbon generation potential, source comparison shows that Xujiahe natural gas is self-storage coal gas. Reservoir physical properties and tectonics are the main controlling factors for the migration and accumulation of natural gas. The main reservoir-forming mode is natural gas migration and accumulation.