室内配比混源油地球化学特征研究  

GEOCHEMICAL CHARACTERISTICS OF PROPORTIONAL MIXED OIL

作　　者：周妮[1] 王海静[1] 柯贤贵[1] 丁湘华[1] 邓泳[1] 

机构地区：[1]中国石油新疆油田公司勘探开发研究院

出　　处：《天然气勘探与开发》2009年第3期4-7,共4页Natural Gas Exploration and Development

摘　　要：运用气相色谱、色谱-质谱和碳同位素等分析技术对准噶尔盆地典型的侏罗系和白垩系原油、二叠系和石炭系原油进行室内混源油配比实验分析,并对混源油的地球化学特征进行了研究,研究结果表明:混源油的碳同位素值与混源油的比例呈线性规律变化,侏罗系与白垩系混源油的姥植比随侏罗系原油比例增加而增大,三环萜烷C23/C19、伽马蜡烷的含量随侏罗系原油比例的增加而减小。二叠系与石炭系混源油的姥植比随石炭系原油比例增加而增大,三环萜烷C23/C19、β-胡萝卜烷的含量随石炭系原油比例的增加而减小。For crude oil produced from typical Jurassic,Cretaceous,Permian and Carboniferous in Junggar Basin,the proportion of mixed oil was tested and analyzed by some technologies of gas chromatography,chromatography-mass spectrometry and carbon isotope. In addition,the geochemical characteristics of mixed oil were studied. The results illustrate that:(1) for mixed oil,the relationship between its carbon isotopic value and its proportion is linear; (2) Pristane/Phytane (Pr/Pn) of mixed oil from both Jurassic and Cretaceous increases with an increase of oil proportion of Jurassic; (3) both C23/C19of tricyclic terpane and content of gammacerane increase with a decrease of oil proportion of Jurassic; (4) Pr/Pn of mixed oil from both Permian and Carboniferous increases with an increase of oil proportion of Carboniferous and (5) both C23/C19 of tricyclic terpane and content of β-carotane increase with a decrease of oil proportion of Carboniferous.

关 键 词：原油 碳同位素 生物标志物 混源油 地球化学特征 

分 类 号：P618.13[天文地球—矿床学]