Research Article
Insights into Enhanced Oil Recovery by Coupling Branched-Preformed Particle Gel and Viscosity Reducer Flooding in Ordinary Heavy Oil Reservoir
Table 2
The porosity and permeability of sand packs used for flooding experiments.
| | No. | Chemical slug | Permeability (μm2) | Porosity (%) |
| | 1# | 3000 mg·L-1 S1 | 1.1 | 42.2 | | 2# | 3000 mg·L-1 S2 | 1.1 | 41.4 | | 3# | 3000 mg·L-1 S3 | 1.0 | 40.8 | | 4# | 800 mg·L-1 B-PPG | 1.0 | 40.8 | | 5# | 3000 mg·L-1 S1+800 mg·L-1 B-PPG | 1.0 | 40.8 | | 6# | 3000 mg·L-1 S2+800 mg·L-1 B-PPG | 1.0 | 41.4 | | 7# | 3000 mg·L-1 S3+800 mg·L-1 B-PPG | 0.9 | 40.8 |
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