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>Spatial situation diagram of particle size distribution in the core.</div>

Geofluids

fig4

Figure 4

Figure 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 

Figure 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 