Simulation and Prediction of Injection Pressure in CO₂ Geological Sequestration Based on Improved LSO Algorithm and BP Neural Networks

Table 1

Parameters of reservoir caprock model.

Parameters	Reservoir	Caprock
Buried depth (m)	1050	1000
Thickness (m)	100	50
Rock density (g/cm^3)	2.18	2.43
Tensile strength (MPa)	1.77	1.59
Elastic modulus (GPa)	0.98	8.34
Cohesion (MPa)	11.984	7.538
Porosity	19%	8.585%
Permeability (mD)	136	0.00179
Internal friction angle (°)	24.77	41.52
Poisson’s ratio	0.29	0.15
Maximum horizontal principal stress (MPa)	29.21	29.21
Minimum horizontal principal stress (MPa)	25.38	25.38