Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : October 22, 2016 - October 23, 2016
Carbon dioxide flooding, which is one of enhanced oil recovery schemes, improves oil recovery due to the miscibility between supercritical carbon dioxide and oil. When a less viscous fluid displaces a more viscous one, however, viscous fingering reduces oil recovery. In this study, the there-dimensional development of viscous fingering in miscible two-phase flows in porous media is visualized using an X-ray CT scanner. Interaction among the fingers such as shielding, merging, and tip splitting is observed. Three-dimensionally involved structure of the fingers results in low sweep efficiency compared with two-dimensional viscous fingering.
