Coupled Geomechanical-Flow Assessment of CO₂ Leakage through Heterogeneous Caprock during CCS

Table 1

Hydraulic and geomechanical properties for homogeneous model.

Properties	Overburden rock	Caprock	Aquifer
Permeability (md)	25	0.0001	100
Porosity	0.21	0.01	0.25
Rock density (kg/m^3)	2,260	2,260	2,260
Young’s modulus, (GPa)	5	5	5
Poisson’s ratio,	0.25	0.285	0.25
Maximum fracture permeability, (md)	—	35	—
Minimum fracture permeability, (md)	—	5	—