吉木萨尔凹陷二叠系芦草沟组烃源岩有机岩石学特征及其赋存状态

发布时间：2018-05-30 22:41

本文选题：有机岩石学 + 显微组分　；参考：《中国石油大学学报(自然科学版)》2017年02期

【摘要】：综合运用岩心观察、薄片鉴定、地球化学参数分析等方法,对准噶尔盆地吉木萨尔凹陷吉32井二叠系芦草沟组烃源岩开展了有机岩石学精细研究。结果表明:综合反射光、透射光特征,烃源岩有机质赋存形式划分为有形态有机质、无形态有机质和次生有机质,有机显微组分划分为5组12组分,以腐泥组无结构藻类体和沥青质体为主,次生组含量普遍较高,镜质组和惰质组含量较低,壳质组含量极少;依据有机质组分荧光性、含量、形态等特征,有机显微组分在岩石矿物中具有5种赋存状态,有机显微组分类型及含量具有显著的非均质性,与所赋存的岩石岩性组分、结构、构造具有明显的对应关系;腐泥组无结构藻类体和无定形体等富氢有机组分与有机碳含量和生烃潜力呈正相关关系,为该区主要的生烃有机组分。
[Abstract]:By means of core observation, thin section identification and geochemical parameter analysis, the source rocks of the Permian Lucaogou formation in Ji 32 well in Jimusar depression, Junggar Basin, were studied in detail by organic petrology. The results show that the organic matter of the source rock can be divided into organic matter of form, organic matter without form and secondary organic matter, and organic macerals can be divided into 5 groups and 12 components according to the characteristics of reflected light and transmitted light. The unstructured algal bodies and asphaltenes of the saprophyte group are the main ones, the secondary group is generally high, the vitrinite and inertinite are low, and the crustaceous group has very little. According to the fluorescence, content and morphology of the organic matter, and so on, Organic macerals have five occurrence states in rock minerals, and the types and contents of organic macerals have obvious heterogeneity, which have obvious corresponding relationship with the existing lithologic components, structures and structures. The hydrocarbon-rich organic components, such as unstructured algae and amorphous bodies, are positively correlated with the content of organic carbon and hydrocarbon generation potential, and are the main hydrocarbon generating organic components in this area.
【作者单位】：中国石油大学地球科学与技术学院;海洋国家实验室海洋矿产资源评价与探测技术功能实验室;中国石油新疆油田分公司勘探开发研究院;中石化胜利油田石油工程有限公司测井公司;
【基金】：国家“973”计划项目(2014CB239002) 山东省自然科学基金青年基金项目(ZR2014DQ016)
【分类号】：P618.13

【相似文献】