Calculate water saturation (Sw):
Control sliders in order to change values of Rw, Rt and ϕ
Drag the red point (Sw) to change n and m values
Sw Water saturation
Rw Resistivity of water (ohm.m)
Rt Resistivity of rock (ohm.m)
ϕ Porosity (%)
a Constant, a=1
m Cementation factor
n Saturation exponent