Experimental Study on Medium Viscosity Oil Displacement Using Viscoelastic Polymer

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/geofluids/volume-2018/4321380/figures/4321380.fig.009a.svgz" name="4321380.fig.009a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Water flooding</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/geofluids/volume-2018/4321380/figures/4321380.fig.009b.svgz" name="4321380.fig.009b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Glycerin flooding</td></tr><tr class="fig-image" id="c"><td><object data="https://static.hindawi.com/articles/geofluids/volume-2018/4321380/figures/4321380.fig.009c.svgz" name="4321380.fig.009c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>Polymer flooding</td></tr></table>

<div>Residual oil distribution of glycerin flooding and viscoelastic polymer flooding with the same viscosity (40 mPa·s) at a water displacement sweep efficiency of 60% (the dark area is oil, and the lighter the color is, the lower the saturation is; the light area represents the displacing fluid).</div>

Geofluids

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Figure 9

Figure 9: Experimental Study on Medium Viscosity Oil Displacement Using Viscoelastic Polymer 