【摘要】 细致观测了野外剖面,并进行了相关的室内分析化验,对比研究了赤水地区与四川盆地其他地区上三叠统须家河组烃源岩分布特征、有机质类型及丰度,结合赤水地区须家河组天然气的主要地球化学特征,揭示了赤水地区须家河组的源岩特征,初步探讨了其天然气成因。结果表明,研究区须家河组的天然气主要来源于下伏地层。更多还原

【Abstract】 After field profiles being observed and some indoor tests and analysis being fulfilled, this paper researched distribution, organic type and abundance of the Xujiahe Formation, Upper Triassic in Chishui and other areas in the Sichuan Basin, analysed the main geo-chemical characteristics of the gas from the Xujiahe Formation, discovered the source characteristics of the Xujiahe Formation, and discussed the origin of the natural gas found in the formation. The results indicate that the natural gas of the Xujiahe Formation mainly derived form the lower strata.更多还原