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

<div>The foaming performance of the compound system of DSFA and BPMO in different proportions.</div>

Geofluids

fig7

Figure 7

Figure 7: 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 

Figure 7 | Preparation of Oil-Based Foam Gel with Nano-SiO2 as Foam Stabilizer and Evaluation of Its Performance as a Plugging Agent for Fractured Shale 