重庆科技学院学报（自然科学版）2024，Vol.26Issue(3)：1-7,7.DOI:10.19406/j.issn.1673-1980.2024.03.001
开鲁盆地陆东凹陷后河地区页岩层系原油地球化学特征
The Geochemical Characteristics of Crude Oil in the Shale System in Houhe Area of Ludong Sag of Kailu Basin
摘要
Abstract
According to the analysis and testing data of shale oil in the Ⅱ-Ⅲ oil reservoir groups in the upper mem-ber of Jiufotang formation of the Early Cretaceous in Houhe area of Ludong sag of Kailu basin,the low mature shale oil is comprehensively evaluated by analyzing the physical properties,group composition,saturated hydrocarbon chromatography and mass spectrometry of the crude oil.The research results show that the shale oil of the Ⅱ-Ⅲ oil reservoir groups are the medium ordinary heavy oil.The crude oil is distributed in a single peak to a rear peak type.The main peak carbon is mainly nC23.The biomarkers of crude oil are characterized by high pentacyclic ter-pane content and high tricyclic terpane content.The hydrocarbon generating parent material of crude oil was formed in the sedimentary environment with strong reduction-reduction brackish water-semi brackish-water lake and the crude oil has low maturity characteristics.Further,the differences of biomarker parameters among different oil groups in the upper member of Jiufotang formation and the migration distance of the reservoir formed in the shale is limited.They indicate that each shale reservoir is an independent hydrocarbon generation and accumulation system which has the characteristics of self-generation and self-storage and endogenous accumulation.关键词
开鲁盆地/陆东凹陷/后河地区/九上段/生物标志化合物/页岩油/低熟原油Key words
Kailu basin/Ludong sag/Houhe area/the upper member of Jiufotang formation/biomarkers/shale oil/crude oil of low maturity分类
天文与地球科学引用本文复制引用
刘海艳,李德华,田涯,何绍勇,崔宇晶,李秀明,秦喜春,范家铭,李丽..开鲁盆地陆东凹陷后河地区页岩层系原油地球化学特征[J].重庆科技学院学报（自然科学版）,2024,26(3):1-7,7.基金项目
中国石油天然气股份有限公司科学研究与技术开发项目"渤海湾及外围盆地风险勘探领域和目标研究、工程技术攻关及现场试验"(2022KT0502) （2022KT0502）
辽河油田重大科技专项"辽河油田页岩油资源发现及地质工程一体化研究"(2023KJZX-01) （2023KJZX-01）
