Development of Digital Rock Method to Elucidate the Behavior of CO2-Oil-Water System in Porous Media

2017 Fiscal Year Final Research Report

• Project/Area Number: 16K18331
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Earth system and resources engineering
• Research Institution: Yamaguchi University
• Principal Investigator: Jiang Fei 山口大学, 大学院 創成科学研究科, 助教 (60734358)
• Research Collaborator: Takeshi Tsuji 九州大学, 工学研究院 地球資源システム工学部門, 教授
• Project Period (FY): 2016-04-01 – 2018-03-31
• Keywords: デジタルロック / EOR / 多孔質媒体シミュレーション

Outline of Final Research Achievements

This study aims to elucidate the complex flow behavior of CO2-oil-water-mineral system for the application of CO2 geological storage technique with the combination of enhanced oil recovery (CO2-EOR). For this purpose, we developed a large scale digital rock simulator with a three-phase model. We successfully reproduced various CO2-EOR scenarios by computer simulations, which are impossible to be investigated by experimental approach. By carrying out the complex flow simulation directly on the pore-scale rock geometry, we successfully calculated the three-phase relative permeability of CO2-oil-water-mineral system. Moreover, the relationships between oil recovery factor with parameters such as interfacial tension, viscosity and wettability have been investigated.

Free Research Field

計算力学