Table 1
Calculation models of reducing amount of oil saturation for different displacement methods.
| Reservoir type | Wettability | Models of reducing amount of oil saturation by water flooding | Models of reducing amount of oil saturation by polymer flooding |
|---|---|---|---|
| Conglomerate reservoir in Kexia group | Hydrophilic rock | ΔS wfo = 0.9691 × W di − 3.3024 |
|
| Weak lipophilic rock | ΔS wfo = 0.3744 × W di + 16.474 |
|