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采用有机岩石学全岩分析技术 ,系统研究了松辽盆地齐家古龙地区白垩系嫩江组烃源岩的显微组分组成、生烃组分及有机质热演化。该区烃源岩形态显微组分含量占全岩体积的 4.1%。嫩二段—嫩五段烃源岩显微组分以高等植物陆源输入占绝对优势 ,贫惰性组、富含镜质组、相对发育壳质组 ;嫩一段烃源岩腐泥组分含量较高 ,具有混合生源的特点 ,为该区主力烃源岩。藻类体是该区低熟油的重要生烃组分。利用镜质组反射率、孢子体荧光参数 ,将有机质热演化阶段划分为未成熟、低成熟两个阶段 ,二者界线所对应的镜质组反射率为 0 .5 % ,孢子体相对荧光强度为 2 .2 ,埋深为 10 5 0m。图 4表1参 4(马安来摘 )
Based on the whole rock analysis technique of organic petrology, the microscopic composition, hydrocarbon generation components and organic matter thermal evolution of the Cretaceous Nenjiang Cretaceous source rocks in the Qijia Gulong area of Songliao Basin were systematically studied. The source rocks in this area account for 4.1% of the total rock volume. The Nen2 Member-Nen5 Member source rocks are dominated by terrestrial input of higher plants, poorly inert, rich in vitrinite and relatively developed in the crust; High, with a mixed source of the characteristics of the main source rocks in the area. Algae is an important hydrocarbon generating component of low-mature oil in this area. Based on the vitrinite reflectance and sporophytic fluorescence parameters, the thermal evolution stages of organic matter are divided into two stages of immature and low maturity. The reflectivity of the vitrinite corresponding to the boundary between the two is 0.5%. The relative fluorescence intensity 2 2, depth of 10 5 0m. Figure 4 Table 1 Reference 4 (Ma’an to pick)