Dynamic Evaluation Method of Caprock Microscopic Sealing in CO₂ Sequestration Project

Table 1

Parameters of reservoir and caprock.

Stratum	Upper caprock	Reservoir	Caprock at bottom
Depth (m)	2400~2590	2590~2653	2653~2673
Accumulated thickness (m)	190	63	20
Density (kg·m^3)	2600	2400	2600
Porosity	0.072	0.15	0.02
Permeability (m^2)	^-20	^-17	^-21
The ratio of horizontal to vertical permeability	10	10	10
Average temperature (°C)	90	97.3	100
Median pore radius (μm)	0.036	0.1	0.015