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. 2024 Mar 28;10(7):e28915. doi: 10.1016/j.heliyon.2024.e28915

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