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Numerical simulation conditions.
| Calculation content | Water injection mode | Water velocity/(mm/s) | Inlet water temperature of production well/(°C) | Fracture (geothermal well) opening/(mm) |
|---|---|---|---|---|
| 1 | V1, V4 water injection, V2, V3 water outlet | 2 | 90 | 2.5 |
| 2 | V1, V4 water outlet, V2, V3 water injection | |||
| 3 | V1 V2 water injection, V3, V4 water outlet | |||
| 4 | V1, V3 water injection, V2, V4 water outlet |
