All issues Volume 73 (2018) Oil & Gas Science and Technology - Rev. IFP Energies nouvelles, 73 (2018) 56 Full HTMLChanges in CO2-oil IFT slope ratio due to adding CaO and SiO2 nanoparticles.
| Nanoparticles type | Nanoparticle concentration (ppm) | Region | Equation IFT (mN/m) | Ratio of the IFT slope in 2nd to 1st region (%) |
|---|---|---|---|---|
| Base | 0 | 1st | IFT = −0.0124 P + 17.675 | 16.9 |
| 2nd | IFT = −0.0021 P + 6.137 | |||
| CaO | 45 | 1st | IFT = −0.0124 P + 16.675 | 39.5 |
| 2nd | IFT = −0.0049 P + 8.407 | |||
| SiO2 | 45 | 1st | IFT = −0.0126 P + 16.909 | 31.0 |
| 2nd | IFT = −0.0039 P + 7.939 |
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