摘要
分析了鄂尔多斯盆地和柴达木盆地原油中中性含氮化合物的分布特征,进一步探讨了母源、沉积环境和成熟度对该类化合物的控制作用。研究结果表明,不同成因类型原油中吡咯类含氮化合物的相对丰度有显著差异;母源输入与吡咯类化合物的分布之间没有明确相关性;沉积环境和成熟度对原油中吡咯类化合物的丰度与组成有重要影响;m(1-MC)/m(4-MC)、m(1,8-DMC)/m(2,7-DMC)和m(苯并[a]咔唑)/m(苯并[C]咔唑)可作为成熟度参数。在进行含氮化合物研究时,不能仅仅局限于单一的油气运移方面的研究,吡咯类化合物同样可作为成熟度和油源对比参数使用。
The distribution of neutral nitrogen compounds in oils from Erdos basin and Qaidam basin is investigated. The control effects of source rock, depositional environment and maturity on such compounds are further discussed. The results indicate that there are some distinct differences of relative abundance of pyrrolic nitrogen compounds in various crude oils; the source rock affects little on the distribution of pyrrolic nitrogen compounds; the depositional environment and maturity have important effects on the abundance of pyrrolic nitrogen compounds; m（1-MC）/m（4-MC）, m（1,8-DMC）/m（2,7-DMC） and m（benzo[a]carbazole）/m（benzo[c]carbazole） can be used as maturity parameters. It is suggested that pyrrolic nitrogen compounds have potential significance both in oil-gas migration and in paleoenvironment and thermal maturity evaluation.
出处
《新疆石油地质》
CAS
CSCD
北大核心
2008年第3期299-302,共4页
Xinjiang Petroleum Geology
基金
国家“973”项目,中国海相碳酸盐岩层系油气富集机理与分布预测(2005CB422105)资助
关键词
原油
沉积环境
热成熟度
吡咯
crude oil
depositional environment
maturity
pyrolle
