| 塔河油田原油甾藿烷系列化合物地球化学再认识 |
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| 引用本文： | 南青云,刘文汇,腾格尔,范明,王晓锋.塔河油田原油甾藿烷系列化合物地球化学再认识[J].沉积学报,2006,24(2):294-299. |
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| 作者姓名： | 南青云 刘文汇 腾格尔 范明 王晓锋 |
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| 作者单位： | 中国科学院地质与地球物理研究所气体地球化学重点实验室 兰州 730000 |
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| 基金项目： | 国家自然科学基金项目（批准号：40271003）资助. |
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| 摘 要： | 生物标志化合物是油气油源、成熟度、运移等领域研究中的一项得力工具。运用生物标志物色谱质谱技术，对比研究了塔河油田各油区原油生物标志化合物中甾、藿烷系列化合物特征。研究表明，塔河油田为一由晚期成熟高、轻微改造的原油与早期成熟度低、遭受较强降解原油混合而成的复合油藏，该油藏各区原油C27—C29甾烷同系物以及C27—C29重排甾烷特征反映出该区不同成熟度原油来自同一母源，原油Ts/(Tm+Ts)、重排甾烷/规则甾烷和ββ/(ββ+αα) C29比值关系立体图指示出原油的充注方向，印证了“塔河地区的油气主要来自于南部的满加尔坳陷”这一论点。
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| 关 键 词： | 甾烷 藿烷 生物标志物 塔河油田 地球化学 |
| 文章编号： | 1000-0550（2006）02-0294-06 |
| 收稿时间： | 2005-01-11 |
| 修稿时间： | 2005-04-13 |
Geochemical Characters Recognition for Steranes and Hopanes from Oils of Tahe Oilfield |
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| NAN Qing-yun, LIU Wen-hui, Tenge, FAN Ming, WANG Xiao-feng.Geochemical Characters Recognition for Steranes and Hopanes from Oils of Tahe Oilfield[J].Acta Sedimentologica Sinica,2006,24(2):294-299. |
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| Authors: | NAN Qing-yun LIU Wen-hui Tenge FAN Ming WANG Xiao-feng |
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| Institution: | Key Laboratory of Gas Geochemistry, Institute of Geology and Geophysics, Chinese Academy of Sciences, Lanzhou 730000 |
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| Abstract: | Biomarker is one of the most effective tools in the study of oil source correlation gas oil maturity and gas oil migration. By using biomarker GC, GC—MS analysis techniques, the geochemical characters of steranes and hopanes from crude oils of Tahe oil field were investigated in this paper. The study shows〖KG*2〗Tahe oilfield is a compound oil reservoir, which is composed of later generated oils with high maturity lighter biodegradation and earlier〖KG*2〗generated oils with low maturity stronger biodegradation. The characters of C27—C29〖KG*2〗steranes and hopanes series indicate oils with varied maturities generated from the same sort of mother materials. The three dimensional diagram〖KG*2〗formed by Ts/(Tm+Ts),〖KG*2〗rearranged sterane/sterane and ββ/(ββ+αα)C29〖KG*2〗shows that the migration direction of crude oil is from south to north, which confirms the opinion that oil and gas of Tahe oilfield mainly came from Manjiar Depression——an area to the south of Tahe oilfield. |
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| Keywords: | sterane hopane biomarkers Tahe oilfield geochemistry |
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