大宛齐油田原油轻烃地球化学研究  

Geochemical Characteristics of Light Hydrocarbons in Dawanqi Oilfield

作　　者：纪红[1] 黄光辉[1] 成定树 

机构地区：[1]长江大学地球环境与水资源学院,湖北武汉430100 [2]重庆科技学院石油与天然气工程学院,重庆401331

出　　处：《石油天然气学报》2014年第2期23-26,5,共4页Journal of Oil and Gas Technology

摘　　要：对库车坳陷大宛齐油田80个原油样品进行了轻烃馏分组分、Mango参数以及成熟度分析，结果表明：原油富含环烷烃，苯及甲基环己烷质量分数总体大于50％，反映其腐殖型陆源母质特征；Mango轻烃参数中K1平均为1．023，表明原油形成的沉积环境类似，三环碳优势大于五环碳和六环碳，原油与陆源湖相沉积环境有关；庚烷与异庚烷质量分数反映原油处于成熟阶段，属正常原油；原油生成温度介于126．3～157．6℃之间。The light hydrocarbon fraction,Mango parameter and maturity of 80oil samples from Dawanqi Oilfield of Kuche Depression were analyzed.The analysis result shows that the crude oil samples are rich in cycloalkane,benzene and methyl cyclohexane are over 50%,it presents a terrestrial humic feature.K1is 1.03in average in the Mango light hydrocarbon parameter,it presents that the sedimentary environments for crude oils are similar,and tricyclic carbon preference index is higher that of pentagonal and hexacyclic carbons,indicates that it is related with terrestrial lacustrine sedimentary environment.The maturity parameter,mass fraction of heptane and isoheptane value,demonstrate that the crude oil belongs to normal mature.The temperature of crude oil generation is between 126.3~157.6℃.

关 键 词：大宛齐油田 原油轻烃 地球化学 

分 类 号：P618.13[天文地球—矿床学]