Research Article
Compositional Modeling for Optimum Design of Water-Alternating CO2-LPG EOR under Complicated Wettability Conditions
Table 7
Maximum NPV improvements with LPG mole fraction and composition for oil-wet reservoir (base case: $2,652,887).
| | | Maximum NPV improvements (%) | | | LPG 10% | LPG 15% | LPG 20% | LPG 25% | LPG 30% |
| Propane 100%
Butane 0% | 10.7 | 11.0 | 11.8 | 12.8 | 20.0 |
| Propane 63%
Butane 37% | 9.3 | 10.3 | 13.0 | 24.1 | 19.2 |
| Propane 37%
Butane 63% | 9.0 | 10.9 | 18.4 | 19.2 | 15.4 |
| Propane 0%
Butane 100% | 9.2 | 13.8 | 22.5 | 17.3 | 13.0 |
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