中国石油大学学报（自然科学版）2017，Vol.41Issue(2)：30-38,9.DOI:10.3969/j.issn.1673-5005.2017.02.004
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
Organic petrology characteristics and occurrence of source rocks in Permian Lucaogou Formation, Jimsar sag
摘要
Abstract
Based on the core observation,thin section authentication and geochemical parameters analysis,the detailed study of organic petrology was conducted for the source rocks from the Permian Lucaogou Formation in Jimsar sag of the Junggar Basin.The modes of occurrence of organic matter in these source rocks were structrurally recognized as structural maceral,amorphous maceral,and secondary maceral with the aid of reflected and transmitted light petrography,the organic macerals mentioned above were divided into five groups (sapropelineie,exinite,vitrinite,inertinite,and secondary maceral) and further twelve sub-fractions,which was dominated by unstructural algae and asphaltene,the content of secondary macerals was generally higher,while the contents of vitrinite and inertinite were relative low and exinite occurred in minute amounts.According to the fluorescence,content and shape of organic maceral,the source rocks show strong heterogeneity in the types and contents of the components with respect to rocks types with various lithologies,textures and sedimentary structures.The total organic carbon contents and hydrocarbon generation potential are strongly correlated with the amount of unstructural algae and amorphous macerals,which suggests that unstructural algae and amorphous macerals are major components for the hydrocarbon generation in the Lucaogou Formation.关键词
有机岩石学/显微组分/烃源岩/芦草沟组/吉木萨尔凹陷Key words
organic petrology/maceral/source rock/Lucaogou Formation/Jimsar sag分类
能源科技引用本文复制引用
曲长胜,邱隆伟,操应长,杨勇强,陈程,余宽宏,万敏,杜蕊..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[J].中国石油大学学报（自然科学版）,2017,41(2):30-38,9.基金项目
国家“973”计划项目(2014CB239002) （2014CB239002）
山东省自然科学基金青年基金项目(ZR2014DQ016) （ZR2014DQ016）
