Fig. 4

Micromodel images of foam flow behavior at two different salinity levels (images "a to e" at 35,000 ppm salinity, and images "f to j" at 5,000 ppm salinity) at different time intervals.

Micromodel images of foam flow behavior at two different salinity levels (images "a to e" at 35,000 ppm salinity, and images "f to j" at 5,000 ppm salinity) at different time intervals.