Core parameters and EOR of C12Cb and CnOBCb (n = 12, 14, 16, 18).
| Core no. | Length (cm) | Diameter (cm) | Porosity (%) | Permeability (mD) | Sample (0.5 mmol dm−3) | E 1 (%) | E 2 (%) | EOR (%) |
|---|---|---|---|---|---|---|---|---|
| 1# | 7.162 | 2.520 | 26.45 | 132.65 | C12Cb | 48.54 | 55.27 | 6.73 |
| 2# | 7.228 | 2.524 | 25.82 | 126.46 | C12OBCb | 48.89 | 59.44 | 10.55 |
| 3# | 7.218 | 2.518 | 26.15 | 134.60 | C14OBCb | 47.03 | 56.11 | 9.08 |
| 4# | 7.224 | 2.516 | 25.87 | 137.22 | C16OBCb | 48.49 | 57.73 | 9.24 |
| 5# | 7.216 | 2.520 | 25.80 | 134.81 | C18OBCb | 48.41 | 56.26 | 7.85 |