石南地区侏罗系油气包裹体特征及其地质意义

Characteristic of Hydrocarbon Inclusion and Its Geological Significance of Jurassic in Shinan Area

在对准噶尔盆地石南地区侏罗系成岩作用研究的基础上,对该区油气包裹体的物理相态、均一温度和盐度进行了对比分析,分析结果表明,石南地区侏罗系头屯河组的包裹体可分为盐水包裹体、气态烃包裹体、气液烃包裹体和液态烃包裹体,根据油气包裹体的单偏光及其荧光颜色特征可将油气包裹体分为3类。在此基础上,结合区域埋藏史研究,将该地区头屯河组储集层中油气包裹体划分为3个形成期次,并依此为依据,对头屯河组的油气运移和演化进行了探讨。

Based on the research ot diagenesis oi Jurassic in Shinan area of Junggar basin, the analysis and correlation of the physical phase state, homogenization temperature and salinity of the fluid inclusion show that the inclusion of Toutunhe formation of Jurassic in this area could be divided into salt water inclusion, gaseous hydrocarbon inclusion, gas-liquid hydrocarbon inclusion and liquid hydrocarbon inclusion. Based on single polar and fluorescent colors of the hydrocarbon inclusion, it could be classified as three types. Integrated with the regional burial history, the inclusion formation of Toutunhe reservoir can be divided into three stages. Also, the hydrocarbon migration and evolution of Toutunhe formation are discussed in this paper.