Journal of Petroleum Engineering

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 samplesMobility Resistance factor (RF)Residual resistance factor (RRF)
Water1.027——
(2500 ppm + 2 wt% NaCl)0.2314.4611.504
(2000 ppm + 2 wt% NaCl)0.2843.6211.361
(1500 ppm + 2 wt% NaCl)0.3273.1431.211
(1000 ppm + 2 wt% NaCl)0.3532.9051.119
(500 ppm + 2 wt% NaCl)0.3692.7831.059