柴达木盆地北缘原油中单体正构烷烃的碳、氢同位素组成研究

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柴达木盆地北缘原油中单体正构烷烃的碳、氢同位素组成研究

文章导航 > 沉积学报 > 2012 > 30(5): 983-990

柴达木盆地北缘原油中单体正构烷烃的碳、氢同位素组成研究[J]. 沉积学报, 2012, 30(5): 983-990.

引用本文:

柴达木盆地北缘原油中单体正构烷烃的碳、氢同位素组成研究[J]. 沉积学报, 2012, 30(5): 983-990.

Carbon and Hydrogen Isotopic Composition of Individual nAlkanes for Crude Oil from North Margin of Qaidam Basin[J]. Acta Sedimentologica Sinica, 2012, 30(5): 983-990.

Citation:

Carbon and Hydrogen Isotopic Composition of Individual nAlkanes for Crude Oil from North Margin of Qaidam Basin[J]. Acta Sedimentologica Sinica, 2012, 30(5): 983-990.

柴达木盆地北缘原油中单体正构烷烃的碳、氢同位素组成研究[J]. 沉积学报, 2012, 30(5): 983-990.

引用本文:

柴达木盆地北缘原油中单体正构烷烃的碳、氢同位素组成研究[J]. 沉积学报, 2012, 30(5): 983-990.

Carbon and Hydrogen Isotopic Composition of Individual nAlkanes for Crude Oil from North Margin of Qaidam Basin[J]. Acta Sedimentologica Sinica, 2012, 30(5): 983-990.

Citation:

Carbon and Hydrogen Isotopic Composition of Individual nAlkanes for Crude Oil from North Margin of Qaidam Basin[J]. Acta Sedimentologica Sinica, 2012, 30(5): 983-990.

柴达木盆地北缘原油中单体正构烷烃的碳、氢同位素组成研究

中图分类号: P593

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Carbon and Hydrogen Isotopic Composition of Individual nAlkanes for Crude Oil from North Margin of Qaidam Basin

摘要: 以柴达木盆地北缘不同构造带代表性原油作为研究对象，采用GC—TC—IRMS技术对原油中正构烷烃单体碳、氢同位素进行测定。利用样品正构烷烃单体碳、氢同位素组成特征及分布模式，进行原油成因类型划分和对比分析。研究结果表明，正构烷烃可溶有机质的δ13C分布在-36‰～-25‰，δD分布在-180‰～-110‰。对比发现，不同构造带原油中正构烷烃单体碳、氢同位素组成特征上存在着比较明显的差别。以-30‰（δ13C）和 -140‰（δD）作为分界，结合同位素曲线的分布型式，可以划分为不同的分布模式判识生烃母质和沉积环境。
- 单体正构烷烃 /
- 碳同位素 /
- 氢同位素 /
- 生物标记化合物 /
- 柴达木盆地北缘
Abstract: Using GC/C/MS online carbon isotope analysis technique, we obtained the carbon and hydrogen isotopic composition of individual nalkanes for crude oil from different tectonic belts of the north margin of Qaidam Basin. The carbon and hydrogen isotopic composition of nalkanes for crude oil samples can be used to analyze genetic type of crude oil and oilsource correlation. The analytical results indicate that the δ13C and δD values of nalkanes in soluble organic matter ranging between 36‰～25‰ and 180‰～110‰, respectively. Through comparing, it is found that there exist significant differences between the carbon and hydrogen isotopic composition of nalkanes for crude oil from different tectonic belts. By the combination of δ13Cnalkanes (30‰), δDnalkanes (140‰), and distribution pattern isotopic curve, the carbon and hydrogen isotopic composition can be divided into different distribution patterns. Using these patterns can discriminate hydrocarbon generation material and sedimentary environment.
- n alkanes /
- carbon isotopes /
- hydrogen isotopes /
- biological markers /
- north margin of Qaidam Basin

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文章访问数: 1762
HTML全文浏览量: 12
PDF下载量: 854
被引次数: 0

柴达木盆地北缘原油中单体正构烷烃的碳、氢同位素组成研究

刊出日期: 2012-10-10

中图分类号: P593

关键词:

单体正构烷烃 /

生物标记化合物 /

柴达木盆地北缘

摘要: 以柴达木盆地北缘不同构造带代表性原油作为研究对象，采用GC—TC—IRMS技术对原油中正构烷烃单体碳、氢同位素进行测定。利用样品正构烷烃单体碳、氢同位素组成特征及分布模式，进行原油成因类型划分和对比分析。研究结果表明，正构烷烃可溶有机质的δ13C分布在-36‰～-25‰，δD分布在-180‰～-110‰。对比发现，不同构造带原油中正构烷烃单体碳、氢同位素组成特征上存在着比较明显的差别。以-30‰（δ13C）和 -140‰（δD）作为分界，结合同位素曲线的分布型式，可以划分为不同的分布模式判识生烃母质和沉积环境。

English Abstract

柴达木盆地北缘原油中单体正构烷烃的碳、氢同位素组成研究[J]. 沉积学报, 2012, 30(5): 983-990.

引用本文:

柴达木盆地北缘原油中单体正构烷烃的碳、氢同位素组成研究[J]. 沉积学报, 2012, 30(5): 983-990.

Carbon and Hydrogen Isotopic Composition of Individual nAlkanes for Crude Oil from North Margin of Qaidam Basin[J]. Acta Sedimentologica Sinica, 2012, 30(5): 983-990.

Citation:

Carbon and Hydrogen Isotopic Composition of Individual nAlkanes for Crude Oil from North Margin of Qaidam Basin[J]. Acta Sedimentologica Sinica, 2012, 30(5): 983-990.

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