石油实验地质Issue(5)：552-558,7.DOI:10.11781/sysydz201305552
鄂尔多斯盆地杏子川油田延长组原油地球化学特征与油源探讨
Geochemical characteristics of crude oil and oil-source correlation in Yanchang Formation in Xingzichuan Oilfield, Ordos Basin
摘要
Abstract
There are significant differences between the crude oil in different horizons of Yanchang Formation, as is shown by the property, group composition, gas chromatography of saturated hydrocarbon, biomarker of terpane and sterane, comprehensive geological analyses. The crude oil properties of Chang-4+5 and Chang-6 are gener-ally consistent and isogenous, whose difference may be related to migration fractionation effect and crude oil ma-turity. However, there exist obvious variances in the crude oil property between Chang-9 or Chang-10 and Chang-4+5 or Chang-6, indicating different maternal properties. The crude oils in Chang-9 and Chang-10 have relatively higher maturity, mirrored by the biomarkers of Ts/Tm, C29ββ/(ββ+αα) andαααC2920S/(20S+20R), etc. The content of regular sterane in the crude oils in Chang-9 and Chang-10 shows different genesis. Thus, the comprehensive geological analyses and oil-source correlation manifest that the crude oils in Chang-4+5 and Chang 6 come from the source rocks of Chang-7 , while the crude oils in Chang-9 generate from the Lijia-pan shale, and the crude oils in Chang-10 may stem from the effective source rocks of Chang-92 .关键词
原油地球化学/油源对比/延长组/杏子川油田/鄂尔多斯盆地Key words
crude oil geochemistry/oil-source correlation/Yanchang Formation/Xingzichuan Oilfield/Ordos Basin分类
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白玉彬,高振东,李忠锋,张志升,朱杰,郑卉..鄂尔多斯盆地杏子川油田延长组原油地球化学特征与油源探讨[J].石油实验地质,2013,(5):552-558,7.基金项目
陕西省教育厅专项科研计划项目(12JK0491),陕西省自然科学基础研究计划资助项目(2013JM5007)和中国石油科技创新基金项目(2011D-5006-0103)资助。 （12JK0491）
