Influence of Migration and Plugging of Nanoparticles on Coal Permeability in Coal Reservoirs

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2021/8886426/figures/8886426.fig.009a.svgz" name="8886426.fig.009a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Distilled water</td></tr><tr class="fig-image" id="b"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2021/8886426/figures/8886426.fig.009b.svgz" name="8886426.fig.009b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>KCl</td></tr><tr class="fig-image" id="c"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2021/8886426/figures/8886426.fig.009c.svgz" name="8886426.fig.009c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>DPC</td></tr><tr class="fig-image" id="d"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2021/8886426/figures/8886426.fig.009d.svgz" name="8886426.fig.009d" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(d) </b>Comparison of three working fluids</td></tr></table>

<div>Effect of permeability damage rate under different pollution pressure differences.</div>

Geofluids

fig9

Figure 9

Figure 9: Influence of Migration and Plugging of Nanoparticles on Coal Permeability in Coal Reservoirs 