Subsurface Fluid Injection and Energy Storage
Open Access

Table 5

Hydrogeological parameters used in the simulations.

Parameters Formation
Reservoir Caprock
Porosity 0.17 0.075
Horizontal permeability (m2) 1.0 × 10−13 3.0 × 10−16
Vertical permeability (m2) 1.0 × 10−14 3.0 × 10−17
Pore compressibility (Pa−1) 4.5 × 10−10 4.5 × 10−10
Rock grain density (kg/m3) 2600 2600
Formation heat conductivity (W/m °C) 2.51 2.51
Rock grain specific heat (J/kg °C) 920 920
Temperature (°C) 47 47
Salinity (mass fraction) 0.10 0.10
Pressure (bar) 101 101
Gas saturation 0.50 0.00
Relative permeability
Liquid: Van Genuchten function
S * = (S l − S lr)/(1 − S lr)
S lr: residual water saturation S lr = 0.30
m: exponent m = 0.457
Gas: Corey
S gr: residual gas saturation S gr = 0.05
Capillary pressure
Van Genuchten function
S * = (S l − S lr)/(1 − S lr)
S lr: residual water saturation S lr = 0.00
m: exponent m = 0.457
P 0: strength coefficient P 0 = 19.61 kPa P 0 = 6.25 kPa

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