石油实验地质2017，Vol.39Issue(3)：402-408,7.DOI:10.11781/sysydz201703402
可视装置中CO2与正戊烷或原油接触特征和表征方法
Visual contact characteristics and characterization of the CO2 and n-pentane/crude oil interface
摘要
Abstract
CO2 miscible flooding is complex, including mass transfer, convection, phase transition and other issues.Some mechanisms are not clear and need in-depth study.The static characteristics of n-pentane or crude oil and CO2 in different phases were studied by using a CO2 miscible flooding visual device under different experimental pressures.CO2 and n-pentane or crude oil show different contact characteristics under different pressures.The relationship between n-pentane or crude oil relative height and time is a power function, and the curve at low pressure can also be approximately linear.The dissolution swelling rate of CO2 vs.n-pentane or crude oil under different pressure conditions shows a decreasing trend with time, and the curves are negative logarithmic.The factors influencing the relative height of n-pentane or crude oil and the dissolution swelling rate of CO2 vs.n-pentane or crude oil are mainly pressure and fluid properties.关键词
溶解膨胀速率/正戊烷/原油/CO2混相驱油/油田开发Key words
dissolution swelling rate/n-pentane/crude oil/CO2 miscible flooding/oil field exploration分类
能源科技引用本文复制引用
章星,王珍珍,王帅,李芳,刘红现..可视装置中CO2与正戊烷或原油接触特征和表征方法[J].石油实验地质,2017,39(3):402-408,7.基金项目
国家重点基础研究发展计划"973"计划项目(2011CB707300)和中国石油大学(北京)克拉玛依校区引进人才科研启动基金(RCYJ2016B-01-012)资助. （2011CB707300）
