| 油气成藏年代学研究进展及发展趋势 |
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| 引用本文： | 赵靖舟.油气成藏年代学研究进展及发展趋势[J].地球科学进展,2002,17(3):378-383. |
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| 作者姓名： | 赵靖舟 |
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| 作者单位： | 西安石油学院,陕西,西安,710065;中国石油勘探开发研究院,北京,100083 |
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| 基金项目： | 国家“九五”重点科技攻关项目“塔里木盆地油气分布规律”(编号 :99 111 0 1 0 4 0 5 )专题的部分成果 |
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| 摘 要： | 成藏年代学是当代石油地质学的一个前沿领域。80年代以来，随着油藏地球化学、流体包裹体方法、同位素测年法、油气水界面追溯法等多种新方法或新技术的引入，成藏年代学研究取得了重要进展，实现了由传统的间接向直接研究、宏观向微观研究，以及定性向定量（或定期向定年）研究的重要转变。间接研究与直接研究相结合、宏观与微观研究相结合、定性与定量（或定期与定年）研究相结合，已成为现代成藏年代学研究发展的重要趋势，这对于叠合盆地的成藏年代与成藏史研究尤为必要。就各种成藏年代学研究方法的应用及其存在的问题进行了简要分析和讨论。
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| 关 键 词： | 成藏年代学 成藏史 流体包裹体 伊利石 K/Ar测年 油藏地球化学 |
| 文章编号： | 1001-8166(2002)03-0378-06 |
| 收稿时间： | 2001-04-29 |
| 修稿时间： | 2001年4月29日 |
GEOCHRONOLOGY OF PETROLEUM ACCUMULATION: NEW ADVANCES AND THE FUTURE TREND |
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| ZHAO Jing,zhou.GEOCHRONOLOGY OF PETROLEUM ACCUMULATION: NEW ADVANCES AND THE FUTURE TREND[J].Advance in Earth Sciences,2002,17(3):378-383. |
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| Authors: | ZHAO Jing zhou |
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| Institution: | 1. Xi’an Petroleum Institute, Xi'an 710065, China；2. Research Institute of Petroleum Exploration and Development, CNPC，Beijing 100083, China |
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| Abstract: | Dealt with accumulation timing and hydrocarbon filling history, petroleum accumulation geochronology is a frontier field in modern petroleum geology, which has made great progress since 1980s when reservoir geochemistry, fluid inclusion analysis, isotopic dating, oil/gas water contact retrospecting and other methods or technologies were introduced into studies of geochronology of petroleum accumulation and filling history. Now many methods including trap timing, hydrocarbon generation and expulsion history analysis, saturated/dew point pressure method, reservoir geochemistry, hydrocarbon inclusion, K/Ar isotopic dating of authigenic illites, and oil/gas water contact retrospection have been developed to determine the geochronology of hydrocarbon accumulation. These methods, particularly the fluid inclusion analysis and K Ar dating of reservoir's authigenic illites, have transformed geochronological studies of petroleum accumulation from qualitative to quantitative, from relative ages to absolute ones and from macroscopic to microscopic. And combinations of indirect with direct studies, macroscopic with microscopic studies and qualitative with quantitative timing have become the important trend of petroleum accumulation geochronology, which is particularly necessary to geochronological study of accumulation and hydrocarbon filling history of complex basins. Still, application and problems of each methods of accumulation timing are discussed in this paper. And two problems are particularly emphasized: one is the re homogenization of the original homogenized temperature of fluid inclusion, which may give rise to a measured temperature value higher than that when the hydrocarbon entered the reservoirs; the other is the systematic sampling of authigenic illites, which is considered to be extremely important when K/Ar dating of illites is used to determine the filling time of hydrocarbon. |
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| Keywords: | Geochronology Hydrocarbon accumulation Filling history Fluid inclusion K Ar dating Authigenic illite Reservoir geochemistry |
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