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依靠沉积相、沉积微相以及实测地层压力的差异对鄂尔多斯盆地古生界含油气系统进行划分 ,论证了奥陶系天然气藏落在一个含油气压力系统中 .根据包裹体镜下观察、显微测温数据及激光拉曼成分测试数据的内在联系 ,将鄂尔多斯古生界沉积岩包裹体划分为 9期次 ,在此基础上 ,利用包裹体地球化学数据计算了研究区 4个期次的古流体势 ,进而根据古流体势判别研究区下古生界天然气成藏时期流体运聚情况 .将运用沉积岩中流体包裹体研究油气运聚的方法系统归结为含油气压力系统的划分、运移期次分析和运聚方向判定等三方面的内容
Based on the difference of sedimentary facies, sedimentary microfacies and measured formation pressure, the Paleozoic petroleum system in Ordos Basin is divided into two parts, and the Ordovician natural gas reservoir is found to be in a hydrocarbon-bearing pressure system.According to the microscopic observation of the inclusion body, Temperature data and laser Raman composition test data, the Ordos Paleozoic sedimentary rock inclusions are divided into 9 periods. Based on these data, 4 periods of paleo-fluid And then the paleo-fluid potential is used to identify the migration and accumulation of fluids in the Lower Paleozoic during the hydrocarbon accumulation period of the study area.The method system for studying the migration and accumulation of oil and gas by fluid inclusions in sedimentary rocks is attributed to the division of oil and gas pressure systems, Analysis and operation of the direction of the three aspects of decision