Stress Characteristics near Wellbore and Prevention Casing Deformation for Fracturing Horizontal Wells

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/geofluids/volume-2022/3034970/figures/3034970.fig.0011a.svgz" name="3034970.fig.0011a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>60°phase angle spiral perforation (before)</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/geofluids/volume-2022/3034970/figures/3034970.fig.0011b.svgz" name="3034970.fig.0011b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>90°-270° horizontal plane directional perforation (after)</td></tr></table>

<div>Comparison diagram of before and after perforation optimization.</div>

Geofluids

fig11

Figure 11

Figure 11: Stress Characteristics near Wellbore and Prevention Casing Deformation for Fracturing Horizontal Wells 