Table 7. Properties of Core Plugs Used for Oil Displacement Efficiency Study.
| no. | core plug ID | length (cm) | diameter (cm) | pore volume (cm3) | helium porosity | air permeability (md) | absolute permeability (md) |
|---|---|---|---|---|---|---|---|
| 1 | GB 2-5 | 7.30 | 3.83 | 17.55 | 20.87% | 160.9 | 96.9 |
| 2 | GB 3-5 | 7.25 | 3.83 | 16.84 | 20.16% | 172.0 | 113.9 |
| 3 | GB 4-5 | 7.40 | 3.83 | 17.49 | 20.52% | 173.6 | 106.5 |
| 4 | GB 5-5 | 7.59 | 3.83 | 17.67 | 20.20% | 164.9 | 109.1 |
| 5 | GB 6-5 | 7.42 | 3.83 | 17.39 | 20.34% | 163.8 | 98.4 |
| 6 | GB 8-5 | 7.31 | 3.83 | 17.41 | 20.68% | 160.6 | 94.4 |
| 7 | GB 11-5 | 7.23 | 3.76 | 15.45 | 19.24% | 172.9 | 112.8 |
| 8 | GB 13-5 | 7.59 | 3.75 | 17.26 | 20.59% | 184.7 | 127.1 |
| 9 | GB 15-5 | 7.42 | 3.75 | 16.92 | 20.65% | 200.0 | 135.2 |
| 10 | GB 16-5 | 7.53 | 3.75 | 16.23 | 19.51% | 195.6 | 113.8 |