A Study on Maturity Indicatorssome of Some Aromatics in Low-Midmature Thermal Evolution Zones
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摘要: 采用GC/MS配备改性的BPX-5石英毛细柱分析了临清坳陷东部禹城洼陷禹参2井生油岩剖面，胜利油区不同成熟度的原油和生油岩样品的芳烃组成。发现芳烃色谱分布特征、脱羟基维生素Ｅ的β/α异构体比值、北～苯并荧蒽/苯并(e)芘比值以及2, 6+ 2, 7/1，5二甲基萘异构体比值均是沉积物的低—中熟热演化阶段的有效成熟度指标，脱羟基维生素Ｅ是低成熟的标志。新参数2, 3, 6/2,3, 6+ 1, 2, 5三甲基萘比值与1, 3, 6, 7/1, 3, 6, 7+ 1, 2, 5, 6四甲基萘比值图，可以确定低—高熟整个热演化阶段原油和生油岩的成熟度，并不受运移过程分馏效应的影响，对成熟度的变化反映灵敏。Abstract: This paper mainly discussed the effect of some maturity indicators of aromatics prior to and withinthe oil generation zone. By using GC-M S with a modified fused silica capillary column(BPXS) to analysethe extracts of the Yucan-2 well source rock section from the Linqing sag as well as, some source rockand crude oil samples with different maturity in the Shengli oilliekl. In present study, the distribution characteristics of aromatics in chromatograms, the ratio of perylene and benzoflouranthene vs. benzo(e)py rene, β Η deydroxyto一copherol ratio, 2, 6+ 2, 7/1,5 dimethylnaphthalene ratio and dehydroxyt copherol are some reliable markers of low maturity. A combination of maturity indicators from 2, 3, 6/2,3, 6+ 1, 2, 5 trimethyl-raphthalene ratio and 1, 3, 6, 7/1, 3, 6, 7+ 1, 2, 5, 6 tetramethylnaph thalene ratio i suseful for the assessmnt of crude oils and source rocks in the whop thermal evolution zone.
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Key words:
- aromatics /
- maturity indicator /
- Linqing sag /
- Yucheng depression
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[1] 1 Badke, M, Organic geochemistry of aromatic hydmcarbon InAdvantes in Petroleum Geochemistry. 1987, 2 141-207.
2 Alexander.R.Larcher. A V.Kagi ,R I and Price, P L. An oil-source co rrelaton study using age plant-dlerived aromatichomarkers. In Biological Markers in Sediments and Petroleum(J M Moldowan, P Albmcht, and R P Philp, eels.)Pre ntic eHa1L Englewood Cliffs, N J, 1992, 201-202.
3 姜乃煌.黄第藩.宋孚庆任冬等.不同沉积环境地层中的芳烃分布特征.石油学报.1994, 14(3): 42-50.
4 Radke, M, W elte, D Hand Willsch, H, Geocherrucal study on awell in the Western Ganada Basin relation of the aromatic dis-tribution Brttern to maturity of organic matter Geochimt Cos-mochim. Actor, 1982, 46 1-10.
5 Hughes, W B, Cse of thiophenic orgonosulfur compounds in charac-terizing crude oils derived from carbonateversus silld-iclastic sources. In Petroleum Geochemistrv and Source Rock Potential of Caonate Rocks.(,J G Palacas,ed)A A P G Stud. Geol. 1984, 18 181-196.
6 Alexander, R, Kani, R上Rowland, S ,J, et al. The effects ofthermal maturity on distributions of dimethylnaphthalenes andtrimethyl-naphthlens in some Ancient sediments endpetroleum. Geochim.Cos-nochim. Acts, 1985, 49 385-395.
7 林壬子工培荣.代允健等.矿物燃料中多环芳烃的石油地球化学意义.有机地球化学论文集.北京:地质出版社.1987.129-140.
8 盛国英，傅家漠，江继刚等.原油与生油岩中脱轻基维生素五的发现及意义.中国科学.1987, B(4): 423-428.
9 张水昌.黄汝昌.于心科.盐湖盆地沉积有机质中的脱轻基维生素E.沉积学报.1990, 8(1): 57-63.
10 邓穗明.沉积岩中多环芳烃化合物的同步荧光光谱分析及应用.石油地质进展丛书(1).有机地球化学和陆生油.北京:石油工业出版社，139-146. -
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