Research Article
Effect of Polymer Adsorption on Permeability Reduction in Enhanced Oil Recovery
Table 1
Calculated values of RF and RRF for different concentrated PHPA solutions.
| Test samples | Mobility | Resistance factor (RF) | Residual resistance factor (RRF) |
| Water | 1.027 | — | — | (2500 ppm + 2 wt% NaCl) | 0.231 | 4.461 | 1.504 | (2000 ppm + 2 wt% NaCl) | 0.284 | 3.621 | 1.361 | (1500 ppm + 2 wt% NaCl) | 0.327 | 3.143 | 1.211 | (1000 ppm + 2 wt% NaCl) | 0.353 | 2.905 | 1.119 | (500 ppm + 2 wt% NaCl) | 0.369 | 2.783 | 1.059 |
|
|