海拉尔盆地乌尔逊凹陷原油生物标志物地球化学特征

Biological Markers and Geochemical Characteristics of Crude Oil in Wuerxun Depressions in Hailaker Basin

原油中最主要的成分是饱和烃,而且饱和烃中最主要的成分是正构烷烃。但是,研究表明,正构烷烃的分布受成熟度的影响很大,同源原油成熟度不同,其饱和烃的分布特征可以有很大差别。生物标志物是原油中相对稳定的烃类组分,它们可以比较细微地反映原油的生源构成、成熟度、成因类型及其后生变化,依据生物标志物的分布来划分原油类型并确定各种原油的来源具有实际意义。

The main component in the crude oil is a saturated hydrocarbon and in the saturated hydrocarbons is n-alkanes. However, studies have shown that The distribution of n-alkanes is affected by the maturity and Homologous crude oil maturity is also different, its saturated hydrocarbon distribution have very different characteristics. The biomarker is relatively stable in crude oil, they can be relatively subtle reflect the students of the crude oil composition, maturity, and genetic types of epigenetic changes, we based on the distribution of biomarkers to classify the type of crude oil, and to identify various sources of crude oil has practical significance.