准噶尔盆地滴南凸起原油成因研究  

The Study on the Origin of Oil in Dinan Bulge Junggar Basin

作　　者：刘芳明[1] 陈世加[1] 

机构地区：[1]西南石油大学地球科学与技术学院,成都610500

出　　处：《重庆科技学院学报（自然科学版）》2015年第6期14-18,共5页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：国家重点基础研究发展计划"973"项目"中国陆相致密油(页岩油)形成机理与富集规律基础研究--致密油(页岩油)赋存与运聚机理"(2014CB239005)

摘　　要：准噶尔盆地滴南凸起周缘凹陷存在多套烃源岩,成藏条件较好,但其东段、中段及西段油藏类型存在差异。为了深入了解其差异成因,在烃源岩及其产物特征的基础上,结合各段原油特征,对饱和烃色谱、原油碳同位素、姥植比以及甾烷特征进行对比分析。研究表明,滴南凸起东段原油为典型的二叠系源岩成熟阶段产物,滴南凸起西段及中段原油来源于二叠系成熟阶段产物,同时存在侏罗系源岩产物的混和物。There are several sets of source rocks in the periphery of Dinan bulge of Junggar Basin,which have good reservoir conditions,but the types of the eastern,middle and western part of reservoirs are different while the origin of oil are also unknown. On the basis of the characteristics of source rock and its products,combined with the characteristic of oil in eastern,middle and western part of Dinan bulge,through the comparative analysis of saturated hydrocarbons chromatography,crude carbon isotope and Sterane features,the origin of oil in Dinan bulge was studied and determined. The study shows that,the crude oil in eastern part of Dinan bulge is a typical product from the maturity stage of Permian source rock. The crude oil in western part of Dinan bulge is not only sourced from product of maturity stage of Permian source rock,but also mixed with the product of the Jurassic source rocks.

关 键 词：滴南凸起 东道海子凹陷 烃源岩评价 油源对比 成藏地球化学 

分 类 号：P618[天文地球—矿床学]