All issues Volume 75 (2020) Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles, 75 (2020) 12 Full HTMLDisplacement efficiency and average water saturation.
| Injected fluid | a (intercept) | b (slope) | Fw at certain water saturation (Sw = 0.4) | Recovery factor, % OOIP |
|
Displacement efficiency (ED), % |
|---|---|---|---|---|---|---|
| XG-polymer | 5 × 107 | 31.21 | 2.63 × 10−4 | 69.31 | 0.76 | 65 |
| XG/SiO2 physical mixture | 2 × 108 | 31.56 | 6.80 × 10−5 | 71.79 | 0.818 | 71.43 |
| XG-g-silica composite | 3 × 109 | 31.48 | 2.93 × 10−6 | 89.13 | 0.895 | 85.11 |
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