欧亚大陆的稠油

• 作 者: 马翠 李发荣
• 机 构: 大庆油田勘探开发研究院,大庆油田工程有限公司,
• 出 处: 国外油田工程
• 发表日期: 2007年11期
• 关键词: 欧亚大陆 原油黏度 物理化学性质 埋藏深度 含油层 含油层年代 空间分布 含蜡量 初馏点 中生代地层

稠油已成为近几年主要的采油后备资源。最稠的原油分布在东欧及中国西部。在1000～2000m的深度范围内原油黏度最大,随着埋深的增大,原油黏度降低。原油黏度还与含油层的年代有关,中生代地层中的原油黏度最高,而元古代地层中的原油黏度最低。欧亚大陆稠油是重质、含硫、高胶质、高沥青质的原油,并且其含蜡量低,初馏点为200℃。

Heavy oil has become a major oil recovery reserve in recent years. The thickest crude oil is found in Eastern Europe and western China. The viscosity of crude oil is the largest in the depth range of 1000 ~ 2000m. With the increase of the depth, the viscosity of crude oil decreases. The viscosity of crude oil is also related to the age of oil-bearing formations. The viscosity of crude oil in Mesozoic strata is the highest, while that of crude oil in Proterozoic formations is the lowest. Eurasian heavy oil is heavy, sulfur, high glial, high asphaltene crude oil, and its low wax content, the initial boiling point of 200 ℃.