Numerical Simulation Study on Waterflooding Heavy Oil Based on Variable Threshold Pressure Gradient

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/geofluids/volume-2021/8824090/figures/8824090.fig.008a.svgz" name="8824090.fig.008a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Saturation field in the third year</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/geofluids/volume-2021/8824090/figures/8824090.fig.008b.svgz" name="8824090.fig.008b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Pressure field in the third year</td></tr><tr class="fig-image" id="c"><td><object data="https://static.hindawi.com/articles/geofluids/volume-2021/8824090/figures/8824090.fig.008c.svgz" name="8824090.fig.008c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>Saturation field in the sixth year</td></tr><tr class="fig-image" id="d"><td><object data="https://static.hindawi.com/articles/geofluids/volume-2021/8824090/figures/8824090.fig.008d.svgz" name="8824090.fig.008d" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(d) </b>Pressure field in the sixth year</td></tr></table>

<div>Distribution map of saturation field and pressure field of model B.</div>

Geofluids

fig8

Figure 8

Figure 8: Numerical Simulation Study on Waterflooding Heavy Oil Based on Variable Threshold Pressure Gradient 