Numerical Investigation of the Influences of Wellbore Flow on Compressed Air Energy Storage in Aquifers

Table 1

List of the key parameters of the aquifer.

Parameters	Value	Unit
Grain density	2600	kg/m^3
Permeability (horizontal)		m^2
Permeability (vertical)	3.0 × 10^−14	m^2
Porosity	0.2
Compressibility	1.0 × 10^−10	Pa^−1
Heat conductivity	2.51	W/(m·°C)
Rock grain special heat	920	J/(kg·°C)
Relative permeability function	van Genuchten-Mualem model
Capillary pressure function	van Genuchten function
Power in expression	0.60
Aqueous phase residual saturation	0.12
Gas phase residual saturation	0.05
Capillary pressure strength between aqueous and gas phases	675.68	Pa
Maximum capillary pressure	5.0 × 10^5	Pa