| 四川盆地江油厚坝油砂有机地球化学特征与成因研究 |
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| 引用本文： | 罗茂,耿安松,廖泽文,单玄龙.四川盆地江油厚坝油砂有机地球化学特征与成因研究[J].地球化学,2011,40(3):280-288. |
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| 作者姓名： | 罗茂 耿安松 廖泽文 单玄龙 |
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| 作者单位： | 1. 中国科学院,广州地球化学研究所,有机地球化学国家重点实验室,广东广州,510640
2. 吉林大学地球科学学院,吉林长春,130061 |
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| 基金项目： | 国家自然科学基金(40772071); 全国油气资源战略选区调查与评价专项(2009GYXQ14) |
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| 摘 要： | 四川江油厚坝油砂产出于侏罗系沙溪庙组下段,含油砂层沿北东方向延伸约25 km.露头和岩芯油砂样抽提得到氯仿沥青“A”含量为0.4％～33％.抽提物饱和烃GC-MS分析得到的分子有机地球化学特征表明,油砂油遭受严重生物降解,饱和烃分布呈现双大鼓包,正构烷烃和异构烷烃基木被降解；三环萜烷含量丰富,孕甾烷和升孕甾烷含最也较高...
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| 关 键 词： | 侏罗系油砂 甾烷和萜烷 碳同位素 生物降解 四川盆地 |
The organic geochemical characteristics and genesis study of Houba oil sand in the Sichuan Basin,China |
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| LUO Mao,GENG An-song,LIAO Ze-wen,SHAN Xuan-long.The organic geochemical characteristics and genesis study of Houba oil sand in the Sichuan Basin,China[J].Geochimica,2011,40(3):280-288. |
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| Authors: | LUO Mao GENG An-song LIAO Ze-wen SHAN Xuan-long |
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| Institution: | LUO Mao1,GENG An-song1,LIAO Ze-wen1 and SHAN Xuan-long2 1.State Key Laboratory of Organic Geochemistry,Guangzhou Institute of Geochemistry,Chinese Academy of Sciences,Guangzhou 510640,China,2.School of Earth Sciences,Jilin University,Changchun 130061 |
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| Abstract: | Oil sand is widely cropped out at Houba region of Sichuan Province.The lower member of the Jurassic Shaximiao Formation is the main oil reservoir,which is composed of sandstone beds stretching towards north-east orientation for as long as roughly 25 km.Tar sand oil contents of cropped and drilled samples range from 0.4% to 3.3%.Characteristics of saturated hydrocarbon component analyzed by GC-MS showed that tar sand oils were severely biodegraded,which was featured by the disappearance of n-alkanes and iso-... |
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| Keywords: | Jurassic oil sand steranes and terpanes carbon isotope biodegradation Sichuan Basin |
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