宋永臣

个人信息Personal Information

教授

博士生导师

硕士生导师

性别:男

毕业院校:大连理工大学

学位:博士

所在单位:能源与动力学院

学科:能源与环境工程

办公地点:能动大楼810

联系方式:songyc@dlut.edu.cn

电子邮箱:songyc@dlut.edu.cn

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Visualisation of water flooding and subsequent supercritical CO2 flooding in fractured porous media with permeability heterogeneity using MRI

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论文类型:会议论文

发表时间:2013-01-01

收录刊物:CPCI-S

卷号:37

页面范围:6942-6949

关键字:CO2 flooding; MRI; porous media; fractured; heterogeneity

摘要:Fractured reservoirs form a large percentage of the world's hydrocarbon reserves. However, in spite of their wide occurrence and huge reserves, the oil recovery from most of these reservoirs is extremely low. CO2 flooding has proven to be an efficient Enhanced Oil Recovery ( EOR) method. This article addresses the use of MRI technique to follow the removal process of oil, water, supercritical CO2 multiphase flow in fractured artificial consolidated sandstone core with permeability heterogeneity at a typical reservoir temperature and pressure condition. Fluid saturation development was monitored both in the matrix and in the fractures. 2D images at various times and quantitative saturation curves were obtained during all stages of the flooding process. The fronts and interfaces between displaced and displacing fluids were also dynamics monitored in situ during water and subsequent supercritical CO2 flooding process. The results showed that the oil recovery rate can be determined by porosity, permeability and structure of the core, supercritical CO2 flooding can enhance oil recovery evidently after the water flooding.