Analysis of Anisotropic Strength and Wellbore Unstable Zone in Shale Formation Relating to Water Content

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2023/1444009/figures/1444009.fig.009a.svgz" name="1444009.fig.009a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>The dipping angle of bedding plane is 0°</td></tr><tr class="fig-image" id="b"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2023/1444009/figures/1444009.fig.009b.svgz" name="1444009.fig.009b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>The dipping angle of bedding plane is 30°</td></tr><tr class="fig-image" id="c"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2023/1444009/figures/1444009.fig.009c.svgz" name="1444009.fig.009c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>The dipping angle of bedding plane is 60°</td></tr></table>

<div>Polar plots of shale gas well collapse pressure under different moisture contents.</div>

Geofluids

fig9

Figure 9

Figure 9: Analysis of Anisotropic Strength and Wellbore Unstable Zone in Shale Formation Relating to Water Content 