Table 1
Parameters related to wellbore structures, physical properties of reservoir and injected superheated steam.
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Depth of well/m | 284 | The thermal conductivity of formation/(W (m °C)−1) | 1.73 |
| The inside radius of tubing/m | 0.038 | Reservoir temperature/°C | 18.8 |
| The outside radius of tubing/m | 0.0445 | Reservoir pressure/MPa | 2.38 |
| The outside radius of insulation/m | 0.0555 | Reservoir thickness/m | 15 |
| The inside radius of casing/m | 0.0807 | The thermal diffusivity coefficient of the formation /(m2 d−1) | 0.108 |
| The outside radius of casing/m | 0.0889 | The reservoir thermal conductivity/(W (m °C)−1) | 1.73 |
| The outside radius of cement/m | 0.01236 | The heat capacity of reservoir/(kJ (m3 °C)−1) | 2575 |
| The thermal conductivity of tubing /(W (m °C)−1) | 35 | Thermal conductivity of cement/(W (m °C)−1) | 0.933 |
| The thermal conductivity of casing /(W (m °C)−1) | 35 | Superheated steam pressure at wellhead/MPa | 3.8 |
| The thermal conductivity of insulation/(W (m °C)−1) | 0.07 | Superheated steam temperature at wellhead/°C | 3288 |
| The thermal conductivity of cement/(W (m °C)−1) | 0.933 | Superheated steam-injection rate/(t h−1) | 6 |