Preparation of Oil-Based Foam Gel with Nano-SiO<sub>2</sub> as Foam Stabilizer and Evaluation of Its Performance as a Plugging Agent for Fractured Shale

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left">The amount of cross-linking agent DVB</td><td class="align_center">1%</td><td class="align_center">2%</td><td class="align_center">3%</td><td class="align_center">4%</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">Gel formation time (min)</td><td class="align_center">82</td><td class="align_center">75</td><td class="align_center">63</td><td class="align_center">64</td></tr><tr><td class="align_left">Strength of the gel</td><td class="align_center">B</td><td class="align_center">C</td><td class="align_center">D</td><td class="align_center">D</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>The influence of cross-linking agent DVB on gel.</div>

Geofluids

tab4

Table 4

Table 4: Preparation of Oil-Based Foam Gel with Nano-SiO<sub>2</sub> as Foam Stabilizer and Evaluation of Its Performance as a Plugging Agent for Fractured Shale 

Table 4 | Preparation of Oil-Based Foam Gel with Nano-SiO2 as Foam Stabilizer and Evaluation of Its Performance as a Plugging Agent for Fractured Shale 