论文部分内容阅读
油气包裹体是保存在矿物中的古油气组分。对准噶尔盆地不同区域和不同石油地质背景的１８个油气砂岩储集岩样品中现今油气组分和油气包裹体的饱和烃组分做了色谱和色—质谱分析。结果表明：采自盆地边缘两个样品，油气包裹体组分的地球化学特征，尤其是与油源、母质输入类型和沉积环境有关的地球化学参数，和现今油气组分基本相 同，反 映了古油气组分和现今油气组分都来自同一烃源岩；采自盆地腹部的１６个储集岩样品，油气包裹体组分有关地球化学参 数与现今油气组分有明显的差异，反映古油气组分与现今油气组分的油源不尽相同。这与盆地腹部存在多套烃源岩的地 质背景相吻合。
Oil and gas inclusions are paleo-petroleum components preserved in minerals. In the present study, 18 oil and gas reservoirs from different areas of Junggar Basin and different petroleum geologic background were used for the analysis of the present saturated hydrocarbon components of oil and gas and hydrocarbon inclusions by gas chromatography-mass spectrometry. The results show that the geochemical characteristics of oil and gas inclusions from two samples taken from the margin of the basin, especially the geochemical parameters related to oil source and parent material input types and sedimentary environment are basically the same as those of present oil and gas compositions, Oil and gas components and today’s oil and gas components are from the same source rock; from the reservoir of the abyss of 16 reservoir samples, oil and gas inclusions related geochemical parameters and today’s oil and gas components are significantly different, reflecting the paleo-hydrocarbon group The sources of oil and gas components of today are different. This is consistent with the geological background of multiple sets of source rocks in the abdomen of the basin.