| 秀山上寒武统古油藏地球化学特征及油源分析 |
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| 引用本文： | 杨平,谢渊,汪正江,刘建清,赵瞻,卓皆文.秀山上寒武统古油藏地球化学特征及油源分析[J].地球化学,2010,39(4):354-363. |
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| 作者姓名： | 杨平 谢渊 汪正江 刘建清 赵瞻 卓皆文 |
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| 作者单位： | 国土资源部成都地质矿产研究所,四川成都,610082 |
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| 基金项目： | 中上扬子海相含油气盆地分析与油气成藏条件综合评价 |
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| 摘 要： | 秀山上寒武统古油藏沥青主要富集于耿家店组粗晶白云岩晶间孔、晶间溶孔及缝合线中，有机碳含量为3．43％～7．12％，显示其较高的沥青含量。受地表水淋滤氧化作用及微生物降解作用的影响，氯仿沥青“A”及热解烃含量较低，饱和烃含量较低，芳烃、非烃含量较高，轻重烃∑C21-／∑C21＋比值较低。固体碳同位素值具有明显的二分特征，范围分别为-26．7‰-25．6‰和-29．1‰-28．8‰，反映古油藏油气聚集成藏至少有两期，分别来源于不同有机质类型的母岩。根据生物标志化合物、δ13Corg及单体烃同位素对比分析，认为沥青分别来源于下寒武统黑色灰岩和黑色页岩。
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| 关 键 词： | 古油藏 δ13Corg 生物标志化合物 油源对比 秀山 |
Geochemical characteristics and oil source correlation of Upper Cambrian paleo-reservoir in Xiushan |
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| YANG Ping,XIE Yuan,WANG Zheng-jiang,LIU Jian-qing,ZHAO Zhan,ZHUO Jie-wen.Geochemical characteristics and oil source correlation of Upper Cambrian paleo-reservoir in Xiushan[J].Geochimica,2010,39(4):354-363. |
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| Authors: | YANG Ping XIE Yuan WANG Zheng-jiang LIU Jian-qing ZHAO Zhan ZHUO Jie-wen |
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| Institution: | YANG Ping,XIE Yuan,WANG Zheng-jiang,LIU Jian-qing,ZHAO Zhan and ZHUO Jie-wen(Chengdu Institute of Geology and Mineral Resources,Ministry of Land and Resources of the People's Republic of China,Chengdu 610082,China) |
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| Abstract: | Upper Cambrian paleo-reservoir in Xiushan has an abundance of bitumens mainly occurred in intercrystalline pores,intercrystalline solution openings and stylolite of Gengjiadian Formation coarse crystalline dolomite.Total organic carbon contents are 3.43%-7.12%,indicating abundant bitumens.Influenced by leaching and oxidation of surface water and microbial degradation,the bitumens have low contents of chloroform bitumen A,pyrolysis hydrocarbon and saturated hydrocarbon,high contents of aromatic hydrocarbon a... |
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| Keywords: | paleo-reservoir δ13Corg biomarker oil source correlation Xiushan |
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