| 含油流体包裹体：地球化学分析与地质应用 |
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| 作者姓名： | SimonCGEORGE HerbertVOLK ManzurAHMED |
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| 作者单位： | CSIROPetroleum,POBox136,NorthRyde,NSW1670,Australia |
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| 基金项目： | 国家自然科学基金，中国科协，中国科学院出版基金资助 |
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| 摘 要： | 利用含油流体包裹体可以获得与原油和源区常规分析同等质量的可靠地球化学数据。细致而又小心谨慎地对待各测试步骤(如样品清洗、背景空白等)是成功进行包裹体油气成分分析的基础。从技术上来说，每一分析步骤都具有挑战性，但如果我们能按步骤循序渐进，就不仅能够分析那些含有大量石油包裹体的样品(如当今或古油藏样品)，而且可以测试含极少量石油包裹体的样品(如迁移路径或极古老岩石样品)。包裹体中可被测试的碳氢化合物多种多样，包括低分子量的碳氢化合物、n-链烷、类异戊二烯、生物标志物、芳香族碳氢化合物等。流体包裹体内石油成分分析在地质上有广泛应用，比如可以更好地重建储集区石油重注史、确定盆地中以前未知的活性源岩。在储集区内由生物降解造成的石油再造和(或)水洗作用经常被抹去，流体包襄体分析则可以解释储集区复杂成油阶段，当然更可以去除钻孔泥浆添加剂或其他污染物的影响。此外，也可以获知地球早期生物圈碳氢化合物的组成及多样性，以及在勘探区或盆地进行二次迁移路径填图。
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| 关 键 词： | 含油流体包裹体 地球化学 碳氢化合物 活性源岩 生物降解 |
Oil-bearing fluid
inclusions: geochemical analysis and geological applications |
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| SimonCGEORGE HerbertVOLK ManzurAHMED.Oil-bearing fluid
inclusions: geochemical analysis and geological applications[J].Acta Petrologica Sinica,2004,20(6):1319-1332. |
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| Authors: | Abstract |
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| Abstract: | Reliable geochemical information oF similar quality to conventional analyses of crude oils and source rocks can be obtained from oil-bearing fluid inclusions (FI). Caretully controlled analytical procedures including sample clean-Up, procedural blanks and attention to detail are essential for the successful analysis of inclusion oils. The procedures are technically challenging. but if they are carefully followed, successfully analysed samples can include not only those with high abundances of oil incllusions, such, as in current or palaeo oil reservoirs, but also samples with low amounts of oil inclusions, such as those from oil migration pathways or from very amcient rocks. A full range of hydrocarbons can be measured from inclusions, including low molecular weight hydrocarbons,n-alkanes, isoprenoids, biomarkers and aromatic hydrocarbons. There are many geological applications of the analysis of FI oils. These include better constraining oil charge hislories of reservoirs and identifying,active source rocks previously unknown in a particular basin. The effecls of oil-alteration by biodegradation and/or water washing in the resevvoir can be removed. mixing episodes in reservoirs can be deconvoluted, and the effects of drilling mud additivesr on other conlaminanls can be eliminated. Furthermore, the hydrocarbon composition and diversity of Earth's early biosphere can be constrained, and secondary migration pathways can be mapped across prospects or basins. |
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| Keywords: | Oil-bearing fluid inclusion Geochemical analysis Application |
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