凝析油非正构烷烃色谱-质谱分析及其在石油地质中的应用  

Non-normal Alkane GC-MS Analysis of Condensate and Its Application in Petroleum Geology

作　　者：彭渤莹[1] 张云献[1] 刘海燕[1] 

机构地区：[1]中原油田分公司勘探开发科学研究院

出　　处：《断块油气田》2005年第5期28-30,共3页Fault-Block Oil & Gas Field

摘　　要：色谱-质谱分析技术已发展成为发现油气层的实用技术,在石油地质勘探领域占据重要地位,并在勘探和寻找油气层等方面做出了重要贡献;但对于高成熟凝析油,主要为C10之前的正构烷烃,常规的生物标志化合物含量极低,采用常规饱和烃地球化学分析技术往往不能很好解决诸如油源、油气成熟度、油气运移、油气充注方向及次序等地质问题。应用色谱-质谱分析技术,对正构烷烃之间的异构烷烃进行定性定量,进而应用一些新的轻烃地球化学指标,准确判定油气特征,对提高油气勘探效益具有重要意义。GC-MS analysis is now a practical technology used to discover oil and gas reservoir. It is very important in petroleum geology exploration and has much contribution to the discovery of oil and gas reservoir. However, for condensate of high maturity, dominantly normal alkane pre-C10 , common biomarker content is low, so common method as saturated hydrocarbon geochemical analysis can not perfectly solve the geological problems, such as oil source, hydrocarbon maturity and migration, hydrocarbon charging direction and sequence. This paper demonstrated the application of GC-MS analysis to decide the quality and quantity of isoalkane in normal alkane, and then to decide the hydrocarbon feature by applying some new lighter hydrocarbon indexes, thus to improve oil and gas exploration efficiency.

关 键 词：凝析油 色谱-质谱 定性定量 轻烃指标 成熟度 油气勘探 色谱-质谱分析 非正构烷烃 石油地质 凝析油 应用 质谱分析技术 地球化学指标 生物标志化合物 油气成熟度 

分 类 号：P618.130.2[天文地球—矿床学] TS255.7[天文地球—地质学]