Sensitivity Analysis and Multiobjective Optimization of CO<sub>2</sub> Huff-N-Puff Process after Water Flooding in Natural Fractured Tight Oil Reservoirs

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/geofluids/volume-2021/8890468/figures/8890468.fig.005a.svgz" name="8890468.fig.005a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Injection volume</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/geofluids/volume-2021/8890468/figures/8890468.fig.005b.svgz" name="8890468.fig.005b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Injection time</td></tr></table>

<div>Effects of CO<sub>2</sub> injection volume and injection time on oil recovery.</div>

Geofluids

fig5

Figure 5

Figure 5: Sensitivity Analysis and Multiobjective Optimization of CO<sub>2</sub> Huff-N-Puff Process after Water Flooding in Natural Fractured Tight Oil Reservoirs 

Figure 5 | Sensitivity Analysis and Multiobjective Optimization of CO2 Huff-N-Puff Process after Water Flooding in Natural Fractured Tight Oil Reservoirs 