Research Article
Expansion Velocity Model of Steam-Assisted Gravity Drainage considering Thermal Convection
Table 1
Model verification parameter table.
| Item | Value | Item | Value |
| Porosity | 0.3 | Steam temperature | 240°C | Permeability | | Steam chamber angle | 45° | Reservoir thickness | 20 m | Chamber temperature | 280°C | Caprock thickness | 15 m | Reservoir temperature | 30°C | Well spacing | 100 m | Reservoir density | 2500 kg·m-3 | Horizontal well length | 350 m | Convective phase density | 1500 kg·m-3 | Reservoir pressure | 1.2 MPa | Moving speed of steam | | Oil viscosity | | Thermal diffusivity | | Water specific heat capacity | 4200 J/(kg·K) | Original oil saturation | 0.85 | Oil specific heat capacity | 1800 J/(kg·K) | Connate-water saturation | 0.15 | Thermal conductivity | 1.5 W/(m·°C) | Relative permeability of bound water oil phase | 0.85 | Injection pressure | 1.80 MPa | Absolute reservoir permeability | | Pressure–viscosity factor | 2 | | | Temperature–viscosity factor | 3 | Relative permeability of water phase under residual oil | 0.03 |
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