苏丹Muglad盆地六区块原油的地球化学特征  

Crude Oil Geochemical Characteristics of Block 6 in Sudan Muglad Basin

作　　者：文志刚[1] 唐友军[1] 余秋华[1] 

机构地区：[1]长江大学地球化学系,湖北荆州434023

出　　处：《石油天然气学报》2007年第4期66-70,共5页Journal of Oil and Gas Technology

基　　金：中国石油天然气集团公司国际合作项目(03d103)

摘　　要：通过对苏丹Muglad盆地六区块原油进行系统地GC、GC/MS分析,研究了原油的生物标志化合物组成特征。结果显示,所分析的原油既有生物降解油也有正常油,它们属于同一成因类型,原油有机母质为混合型,高等植物为原油的形成作出了重要贡献,但细菌对高等植物改造作用非常重要;原油形成于弱氧化-弱还原和淡水-微咸水环境;原油成熟度不高,主要是生油高峰期前形成的石油。The crude oil in Block 6 of Sudan Muglad Basin was systematically analyzed by using GC,GC/MS techniques,compositional characteristics of the crude oil of biomarkers were studied.The results show that the oils analyzed include biodegraded and normal oils,they are of the same genetic type,their organic parent materials are mixed ones,their higher plants make a great contribution to the oil generation,while bacteria are very important for the higher plants to reconstruct.The crude oils are generated in the environments of weak oxidation-weak reduction and fresh water-micro-salt water,they are low maturity,they are oils generated before the high period of oil generation.

关 键 词：苏丹 Maglad盆地 原油 生物标志物 生物降解 母质 环境 成熟度 

分 类 号：P618.13[天文地球—矿床学]