Oil-Based Drilling Fluid Plugging Method for Strengthening Wellbore Stability of Shale Gas

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2021/6674574/figures/6674574.fig.009a.svgz" name="6674574.fig.009a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>0.45 <i>μ</i>m microporous membrane</td></tr><tr class="fig-image" id="b"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2021/6674574/figures/6674574.fig.009b.svgz" name="6674574.fig.009b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>0.22 <i>μ</i>m microporous membrane</td></tr></table>

<div>Experimental results of microporous filter test.</div>

Geofluids

fig9

Figure 9

Figure 9: Oil-Based Drilling Fluid Plugging Method for Strengthening Wellbore Stability of Shale Gas 