Page 158 - Petrophysics 2E
P. 158
PERMWILITY-POROSITY RELATIONSHIPS 131
100
FZI 15
10 m=s
1
0.1
0.01 0.1 1
441 4)
Cp),
Figure 3.22. Log-logplot of RQI versus Cp/(l - indicating the presence of two$ow
units.
10
8
1
0.1
1 10 100
7
Figure 3.23. Plot of RQI versus tortuosity, confrming the presence of two flow units.
Slichter was the first to demonstrate mathematically the influence
of packing and grain size on permeability [31]. His semi-empirical
equation is:
k = 10.2- dgr (3.60)
aP
