凝析油全二维气相色谱分析  

Analysis of condensate oil by comprehensive two-dimensional gas chromatography

作　　者：王汇彤[1,2,3] 张水昌[1,2,3] 翁娜 李伟[1,3] 秦胜飞[1] 马文玲[1] 

机构地区：[1]中国石油勘探开发研究院 [2]中国石油天然气股份有限公司油气地球化学重点实验室 [3]提高石油采收率国家重点实验室

出　　处：《石油勘探与开发》2012年第1期123-128,共6页Petroleum Exploration and Development

基　　金：中国石油天然气股份有限公司科技攻关项目"油气勘探新领域;新理论;新方法研究"(2008A-0603)

摘　　要：用全二维气相色谱对四川盆地22个凝析油样品进行族组分和化合物定性、定量分析。凝析油中各化合物得到很好的分离,有效消除了常规色谱分析时的共馏峰干扰,在nC3—nC8色谱段有效定性出67个化合物,比常规的色谱轻烃分析结果多13个化合物;在全二维图谱上可把凝析油中的各类化合物根据其结构特征分成12类组分。与氢火焰离子化检测器联用,过去在色谱上无法定量分析的异构烃烃、烷基环戊烷、烷基环己烷、其他单环烷烃、非甾萜类的多环烷烃、烷基苯、多环芳烃等系列化合物被同时检测,解决了凝析油族组分难以定量的问题。12类组分、180多种主要化合物的定量分析数据可为凝析油的成熟度判识、油源对比等油气地球化学研究提供有效数据。Twenty？two condensate oil samples from the Sichuan Basin are analyzed by comprehensive two-dimensional gas chromatography（GC×GC）.Light hydrocarbon components are separated completely without the influence of co-eluting peaks,and the fingerprint information of light fraction such as propane remains intact.Sixty-seven compounds are detected in the range of nC3-nC8 by using GC×GC,13 more than the compounds recognized in the conventional gas chromatography（GC）.These compounds are divided into 12 compound classes by GC×GC according to the structure.Coupled with flame ionization detector（FID）,some compounds that can not be analyzed quantitatively by other methods are quantified,including isoalkane,alkyl cyclopentane,alkyl cyclohexane,other single cycloalkane,polycyclic alkane,adamantane,alkylbenzene and polycyclic aromatic hydrocarbon and so on.The quantitative analysis results of more than 180 main compounds and the 12 compound classes by GC×GC will offer more technical assistance for petroleum geochemical researches to get new parameters of maturity estimation and oil-source correlation of condensate oil.

关 键 词：全二维气相色谱 氢火焰离子化检测器 飞行时间质谱 凝析油 族组分定量 

分 类 号：TE622.1[石油与天然气工程—油气加工工程]