Page 340 - Enhanced Oil Recovery in Shale and Tight Reservoirs

Forced imbibition 313

1.2 1 krw initial
Relative permeabilities 0.8 krw altered
kro initial

kro altered
0.6
0.4
0.2
0
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
Sw (fraction)
Figure 11.3 Relative permeability curves for the matrix at the initially mixed-wet and at
altered water-wet.

1 krw initial
Relative permeabilities 0.7 krw altered
0.9
0.8
kro initial
0.6
kro altered
0.5
0.4
0.3
0.2
0.1
0
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Sw (fraction)
Figure 11.4 Relative permeability curves for the fractures at the initially mixed-wet and
at altered water-wet.

Figure 11.5 IFT changes with salinity in the base model.