Research Article
Effect of Emulsification on Enhanced Oil Recovery during Surfactant/Polymer Flooding in the Homogeneous and Heterogeneous Porous Media
Table 3
Oil recoveries of different displacement stage in dual-core model.
| Scheme | Oil recoveries in water flood stage % | Oil recoveries in chemical flood stage, % | Incremental recoveries, % | HPC | LPC | Total | HPC | LPC | Total | HPC | LPC | Total |
| 0.65 PV of SP flooding | 49.2 | 34.1 | 43.5 | 40.0 | 9.7 | 25.9 | 89.2 | 43.8 | 69.4 | 0.3 PV of emulsion followed by 0.35 PV of SP flooding | 52.9 | 37.8 | 45.4 | 42.0 | 16.6 | 29.7 | 95.9 | 54.4 | 75.1 |
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HPC: high-permeability core; LPC: low-permeability core.
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