Fig. 25.

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Pressure drop and oil recovery as a function of fluid pore volumes injected during different flooding circumstances at 30 and 90 °C (nanoparticle and NSP nanofluids with 1.0 wt% SiO2 nanoparticles), F indicates the interval when Polymer, SP, nanoparticle, and NSP nanofluids were injected (from Sharma et al., 2016).