20_vs_inf: The same cases that were run for the 20PVI (same wettability) cases were run with infinite PVI.
exp: Experimental data by Morrow
fixed_wet: Constant oil-wet fraction (1) and constant distribution of contact angles, teminate cycle after 20 PVI
frac_wet: Increasingly water-wet as Swi increases, teminate cycle after 20 PVI 
inf_pvi_rmin: Infinite pvi, correlate oil-wet elements using Rmin correlation (otherwise always Rmax)
inf_pvi_swc=7.6: Infinite PVI, keep Swc at 7.6%
inf_pvi_swc=swi: Infinite PVI, keep Swc=Swi for all cases
net: Modify network to reduce Swc to 7.6%