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Home All issues Volume 75 (2020) Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles, 75 (2020) 30 Full HTML
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Table 1

Recovery efficiency and permeability before and after plugging at different asphalt concentrations.

Asphalt concentration (mg L−1) Permeability before asphalt injection (10−3 µm2) Permeability after asphalt injection (10−3 µm2) Oil recovery efficiency (%)
 EOR (%)
Water flood to water cut 98% Polymer flood Asphalt injection
1000 1213 512 39.24 49.11 51.34 2.23
1500 1245 502 37.21 49.23 51.73 2.50
2000 1208 486 39.62 48.32 51.23 2.91
2500 1195 475 40.12 48.54 52.24 3.70
3000 1192 452 41.05 48.75 54.22 5.47
3500 1241 431 41.26 49.14 55.64 6.50
4000 1196 423 41.87 49.24 57.52 8.28
4500 1206 415 39.15 48.75 55.21 6.46
5000 1216 412 38.36 48.24 54.64 6.40

EOR, Enhanced Oil Recovery.

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