中国石油大学学报（自然科学版）2016，Vol.40Issue(5)：151-158,8.DOI:10.3969/j.issn.1673-5005.2016.05.019
常见气体及CO2在岩心模型和细长管模型上的驱油对比
Comparison of oil displacement by gases and CO2 using core model and slim-tube
摘要
Abstract
The physical modeling of reservoir processes was conducted. A comparative study of oil displacement efficiency was investigated using gas agents ( nitrogen, methane, associated petroleum gas) and liquid CO2 with the core models of low-permeability carbonate reservoir and slim-tube. It is shown that the two models have the similar oil displacement coefficient for nitrogen (21% and 19. 1%). With the increasing miscibility of fluids in crude oil, the difference between the results of the two models becomes larger. For liquid carbon dioxide, which is miscible with oil, evaluation results of the two models are 52% and 94. 8%, respectively. Therefore, it is concluded that the normal displacement experiment using core models cannot evaluate the oil displacement efficiency of gas agents and solvents. Especially the evaluation results for the mixed oil dis-placement agents are unreliable.关键词
细长管/岩心模型/驱替实验/提高采收率/气驱Key words
slim tube/core model/displacement experiment/EOR/gas injection分类
能源科技引用本文复制引用
梁萌..常见气体及CO2在岩心模型和细长管模型上的驱油对比[J].中国石油大学学报（自然科学版）,2016,40(5):151-158,8.基金项目
俄罗斯教育与科学部基金项目(13.1926.2014/K) （13.1926.2014/K）
