Numerical Simulation of Geostress and Pore Pressure Evolution around Oil or Water Well under Different Injection-Production Ratio

Table 1

The mechanical parameters of the simulated zone.

Materials	Modulus of elasticity; (MPa)	Poisson’s ratio μ	Density; (kg/m^3)	Cohesion (MPa)	Internal frictional angle (°)	Dilation angle (°)	Void ratio; × 100%	Permeability (md)
Rock	2.1 × 104	0.25	2300	—	38	18.5	11.2	12