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依据永安油田原油样品中各类生物标志物分布与组成特征的分析结果,将样品分为Ⅰ类和Ⅱ类。以永21断块和永25断块为代表的Ⅰ类,与以永2、永7、永24、永35断块为代表的Ⅱ类在链烷烃、甾烷和萜烷系列都具有非常明显的区别。它们可以作为这两类原油鉴别的主要依据。
Based on the analysis results of the distribution and compositional characteristics of various biomarkers in the crude oil samples from Yong’an Oilfield, the samples were divided into Class I and Class II. Class Ⅰ, represented by Yong 21 fault block and Yong 25 fault block, is very distinct from the series Ⅱ, represented by Yong 2, Yong 7, Yong 24 and Yong 35 fault blocks in paraffins, steranes and terpanes The difference They can be used as the main basis for the identification of these two types of crude oil.