大民屯凹陷高蜡原油的正构烷烃分析  

N-Alkanes Analysis of High Wax Content Oil from Damintun Seg

作　　者：李新景[1] 丛德茂 金珂[3] 卢松年[1] 

机构地区：[1]中国地质大学,北京学院路29号100083 [2]沈阳采油厂地质所 [3]石油化工科学研究院

出　　处：《断块油气田》1998年第3期21-24,共4页Fault-Block Oil & Gas Field

摘　　要：利用HP6890型高温气相色谱（HTGC）剖析辽河盆地大民屯凹陷高蜡原油。研究结果表明：高蜡原油中显著存在碳数高达C40－C60以上的高碳数烷烃类，主要为正构烷烃；常规气相色谱受到柱系统热稳定性的限制，仅能提供碳数小于C35的化合物信息，而高温气相色谱可以分析C35以上的烧烃。这类高碳数正构烷烃的识别为重新描述高蜡原油的物理化学性质，探讨其有机质来源及成因，评价储层中残留的重质组分提供了理论依据。High Temperature Gas Chromatography (HTGC) analysis of high-wax oils from Damintun depression of Liaohe basin show a new series of C40 to C60 hydrocarbons which is a high concentration of n-alkanes. Because of limitations in GC column, traditional Gas Chromatography (GC) research the compounds less than C35. HTGC extends the analytical limit of traditional GC. The study of high molecular hydrocarbons will provides large important in formation on the property of high-wax oils, the origin of organic matter responsible for high-wax oils and the position of heavy fraction in the reservoir over the next few years of petroleum production.

关 键 词：气相色谱法 高含蜡原油 正构烷烃 油气勘探 

分 类 号：P618.130.8[天文地球—矿床学]