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From: Temperature log simulations in high-enthalpy boreholes
Property | Unit | Value |
---|---|---|
Formation temperature at the surface | °C | 7 |
The geothermal gradient | °C/m | 0.1 |
Casing thermal conductivity | W/(m  °C) | 50 |
Cement thermal conductivity | W/(m  °C) | 1.2 |
Formation rock density | kg/m3 | 3000 |
Formation thermal conductivity | W/(m  °C) | 1.5 |
Formation specific heat capacity | J/(kg  °C) | 840 |
Well depth | m | 4600 |
Inside radius of the drill pipe | m | 0.0352 |
The outside radius of the drill pipe | m | 0.0445 |
Inside radius of the casing | m | 0.0797 |
The outside radius of the casing | m | 0.089 |
The radius of the wellbore/formation interface | m | 0.1 |
Water production rate | kg/s | 15 |
Water specific heat capacity | J/(kg  °C) | 4194 |
Water density | kg/m3 | 1000 |
Water viscosity | Pa∙s | 1e−3 |
Water thermal conductivity | W/(m  °C) | 0.6 |