Science – Society – Technology

# Table 3 Input parameters for simulation

Description Parameter Value
Domain Thickness of the model (pseudo-3D) 10 m
Reservoir depth $$-2000\,\text {m}$$
Pressure initial 20 MPa
Flow rate—per 10 m thickness 0.1 m3 s−1
Temperature initial 300 °C
Temperature at injection 50 °C
Vertical stress, $$S_{\text{v}}$$ 50 MPa
Maximum horizontal stress, $$S_{\text{Hmax}}$$ 40 MPa
Minimum horizontal stress, $$S_{\text{hmin}}$$ 30 MPa
Material Matrix permeability $$1 \times 10^{-17}\text {m}^{2}$$
Matrix porosity 0.1
Matrix density 2700 kg m−3
Fracture porosity 0.5
Fracture density Matrix density
Fracture heat capacity $$828\,\text {J}\,\text {kg}^{-1}\text {K}^{-1}$$
Fracture heat conductivity $$3\,\text {W}\,\text {m}^{-1}\text {K}^{-1}$$
Matrix heat capacity $$828\,\text {J}\,\text {kg}^{-1}\,\text {K}^{-1}$$
Matrix heat conductivity $$3\,\text {W}\,\text {m}^{-1}\,\text {K}^{-1}$$
Poisson ratio, $$\text{nu}_{\text{limestone}}$$ 0.26
Poisson ratio, $$\text{nu}_{\text{marble}}$$ 0.27
Poisson ratio, $$\text{nu}_{\text{skarn}}$$ 0.13
Young’s modulus, $$E_{\text{limestone}}$$ $$38 \times 10^{9}\,\text {GPa}$$
Young’s modulus, $$E_{\text{marble}}$$ $$49 \times 10^{9}\,\text {GPa}$$
Young’s modulus, $$E_{\text{skarn}}$$ $$49 \times 10^{9}\,\text {GPa}$$
Bulk Modulus matrix $$E_{\text{matrix}}\times (3(1-2nu))$$
Fluid Fluid compressibility $$2 \times 10^{9}\,\text {Pa}$$
Density of fluid 1000 kg m−3
Dynamic viscosity of water @ 20 °C $$1.00 \times 10^{-3}\,\text {Pa}\,\text {s}^{-1}$$
Dynamic Viscosity of Water @ 300 °C $$8.58 \times 10^{-5}\,\text {Pa}\,\text {s}^{-1}$$