Table 7.
Summary of oil recovery factors for different chemical flooding designs.
| Test Type | Flooding Stage | Recovery Factor |
Incremental RF |
|
|---|---|---|---|---|
| (%OOIP) | (%OOIP) | (%ROIC) | ||
| Polymer Flooding | SW | 42.8 | – | – |
| Polymer | 90.9 | 48.2 | 84.1 | |
| Nano-Polymer Flooding | SW | 49.5 | – | |
| Nano-Polymer | 94.5 | 45.0 | 89.2 | |
| Sequential Surfactant-Polymer Flooding | SW | 42.9 | – | |
| Surfactant | 59.8 | 16.9 | 29.6 | |
| Polymer | 96.2 | 36.4 | 90.6 | |
| Combined Surfactant-Polymer Flooding | SW | 41.8 | – | |
| Surfactant-Polymer | 95.5 | 53.8 | 92.3 | |
| Alkali-Surfactant-Polymer Flooding | SW | 41.0 | – | |
| Alkali-Surfactant | 53.5 | 12.6 | 21.3 | |
| Polymer | 97.6 | 44.0 | 94.7 | |
| Nano-Surfactant/Polymer Flooding | SW | 40.5 | – | – |
| Nano-Surfactant | 62.5 | 22.0 | 37.0 | |
| Polymer | 89.7 | 27.1 | 72.4 | |
| Nano-Surfactant/Nano-Polymer Flooding | SW | 42.3 | – | |
| Nano-Surfactant | 62.4 | 20.1 | 34.8 | |
| Nano-Polymer | 96.8 | 34.4 | 91.4 | |