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概述了欧亚大陆稠油的基本特征,稠油已成为近几年主要的采油后备资源。研究了稠油在欧亚大陆含油区的空间分布特点。指出,最稠的原油分布在东欧及中国西部。分析了原油粘度随深度而变化的规律后指出,在1 000～2 000 m的深度范围内原油粘度最大,随着埋深的增大,原油粘度降低。研究了原油粘度与含油层年代的关系后指出,中生代地层中的原油粘度最高,而元古代地层中的原油粘度最低。总的来说,按物理化学性质,欧亚大陆稠油是重质的、含硫的、高胶质的、高沥青质且石蜡含量低,初馏点为200℃.
The basic characteristics of heavy oil in Eurasia are summarized. Heavy oil has become a major oil reserve resource in recent years. The spatial distribution of heavy oil in the Eurasia oil-bearing region was studied. Pointed out that the most thick crude oil distribution in Eastern Europe and western China. After analyzing the law of crude oil viscosity changing with depth, it is pointed out that the viscosity of crude oil is the largest in the depth range of 1 000-2 000 m, and the viscosity of crude oil decreases with the increase of buried depth. After studying the relationship between the viscosity of crude oil and the age of the oil-bearing formation, it is pointed out that the viscosity of crude oil in the Mesozoic formation is the highest, while the viscosity of crude oil in the Proterozoic formation is the lowest. In general, Eurasia heavy oil is, by physico-chemical properties, heavy, sulphurous, highly colloidal, highly asphaltene-rich and with a low paraffin content. The initial boiling point is 200 ° C.