松辽盆地西部图牧吉油砂地球化学特征

doi:10.11743/ogg20150407

石油与天然气地质 ›› 2015, Vol. 36 ›› Issue (4): 581-586.doi: 10.11743/ogg20150407

松辽盆地西部图牧吉油砂地球化学特征

李宁熙¹, 黄海平^1,2, 孙晶晶¹, 刘梅¹, 张海峰¹, 蒋文龙¹

1. 中国地质大学能源学院, 北京 100083;
2. 卡尔加里大学地球科学系, 阿尔伯塔卡尔加里 T2N 1N4

收稿日期:2015-04-15 修回日期:2015-05-20 出版日期:2015-08-08 发布日期:2015-08-28
第一作者简介:李宁熙(1986—),男,博士生,油气地球化学。E-mail:ningxili@foxmail.com。
基金项目:
国家自然科学基金项目(41273062)。

Geochemical characteristics of Tumuji oil sands in western Songliao Basin

Li Ningxi¹, Huang Haiping^1,2, Sun Jingjing¹, Liu Mei¹, Zhang Haifeng¹, Jiang Wenlong¹

1. School of Energy Resource, China University of Geosciences, Beijing 100083, China;
2. Department of Geoscience, University of Calgary, 2500 University Drive NW, Calgary, AB, T2N 1N4, Canada

Received:2015-04-15 Revised:2015-05-20 Online:2015-08-08 Published:2015-08-28

摘要/Abstract

摘要：

油砂是重要的非常规油气资源，对油砂的地球化学研究可以更好地指导油砂资源潜力评价。收集了13件松辽盆地西部图牧吉农场的油砂样品，并做了含油率、族组成以及色谱-质谱（GC-MS）分析。实验结果显示图牧吉油砂含油率较高，族组分中以非烃含量为最高。GC-MS分析饱和烃和芳香烃馏分中大部分化合物被降解，其中正构烷烃、藿烷和甾烷系列均受到不同程度降解，三环萜烷抗降解能力较强未受影响。芳烃化合物中萘和菲等化合物都已消失，三芳甾系列较完整。油砂中没有出现25-降藿烷系列，降解程度为6～8级，通过抗降解能力较强的化合物判断，原油基本来自同一油源。

关键词: 生物降解, 地球化学, 非常规油气, 油砂, 图牧吉, 松辽盆地

Abstract:

Being one of the important unconventional oil resources, oil sand is well worth of geochemical study so as to better guide its resource assessment.Thirteen oil sand samples were collected from Tumuji ranch in western Songliao Basin and analyzed for oil yield, bulk composition and GC-MS.The result shows that the oil yield of oil sand is high, and non-hydrocarbon components dominate the bulk composition.Most compounds in saturated and aromatic hydrocarbon fractions were largely biodegraded.The n-alkanes, isoprenoid alkanes, hopanes and steranes were all degraded in varying degree except for tricyclic terpanes.No 25-norhopane series has been detected in the studied sample suite. The naphthalene and phenanthrene series were all destroyed but the triaromatic steroids are intact.These oils are derived from single source rock system on the basis of biodegradation resistant compound signatures.

Key words: biodegradation, petroleum geochemistry, unconventional oil resource, oil sand, Tumuji, Songliao Basin

中图分类号:

TE122.1

李宁熙,黄海平,孙晶晶,等. 松辽盆地西部图牧吉油砂地球化学特征[J]. 石油与天然气地质, 2015, 36(4): 581-586. doi: 10.11743/ogg20150407 Li Ningxi,Huang Haiping,Sun Jingjing,et al. Geochemical characteristics of Tumuji oil sands in western Songliao Basin[J]. Oil & Gas Geology, 2015, 36(4): 581-586. doi: 10.11743/ogg20150407

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松辽盆地西部图牧吉油砂地球化学特征

Geochemical characteristics of Tumuji oil sands in western Songliao Basin

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