石油地质样品全二维色谱与传统色谱技术地化分析比较

蒋启贵; 马媛媛; 钱门辉; 宋晓莹

doi:10.11781/sysydz201203303

石油地质样品全二维色谱与传统色谱技术地化分析比较

doi: 10.11781/sysydz201203303

中国石油化工股份有限公司石油勘探开发研究院无锡石油地质研究所, 无锡214151

基金项目: 国家重大专项“海相碳酸盐岩油气资源潜力、富集规律与战略选区”(2011zx05005-001)资助

详细信息

作者简介:
蒋启贵(1964- ),男,博士,高级工程师,从事油气地球化学研究工作。E-mail:qiguij2004@126.com。

中图分类号: TE135
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出版历程
- 收稿日期: 2011-07-18
- 修回日期: 2012-04-09
- 刊出日期: 2012-05-28

Comparison between comprehensive 2d gas chromatography and conventional gas chromatography in geochemical analysis of petroleum geology

Wuxi Institute of Petroleum Geology, SINOPEC, Wuxi, Jiangsu 214151, China

摘要

摘要: 利用全二维色谱与传统色谱分析技术对石油地质样品进行了地球化学分析比较研究,结果表明,原油直接进样轻烃参数与类异戊二烯烃等参数、样品饱和烃组分和芳烃组分进样2种色谱技术获得的地化分析结果具有可比性;但全二维色谱分析发现原油样品直接进样与芳烃组分进样2种色谱技术获得的部分芳烃物质如萘系及三芴化合物分析结果有明显差异,原油直接进样二甲基萘在萘系化合物中具主导地位,氧芴含量明显要高。这说明样品族组分分离前处理过程改变了样品芳烃组分的原始面貌,原有反映有机质沉积环境的三芴系列化合物关系图版已不能适用于原油直接进样全二维色谱分析结果。由于原油直接进样分析不存在前处理过程,原油全二维直接进样分析结果更为真实。
- 全二维色谱 /
- 传统色谱质谱 /
- 石油地质样品 /
- 地球化学参数
Abstract: Geochemical analysis of petroleum geology has been made by using comprehensive 2d gas chromatography (GC×GC) and conventional gas chromatography. The parameters of light hydrocarbons and isoprenoids by oil direct injection and by saturated hydrocarbons or aromatics injection are comparable according to a comparative study of geochemistry, whereas part of the aromatics such as naphthalene series and benzfhiore tri-fluorene are characterized with obvious differences. Comparing with aromatics injection, the dimethylnaphthalene in crude oil direct injection is in dominant position and dibenzofurans is significant higher, which shows that the separation of compound-grouped fractions in pretreatment of sample changes the original appearance of aromatics. Therefore the establishment of the benzfhiore tri-fluorene chart which reflects organic deposition environment should not be applied to the analysis results of oil by GC×GC. Oil direct injection can provide more real information because there is no need for pretreatment.
- comprehensive 2d gas chromatography /
- conventional gas chromatography /
- petroleum geology sample /
- geochemical parameter

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参考文献(18)

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