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 different foaming agents in kerosene (a) and diesel (b).</div>

Geofluids

fig5

Figure 5

Figure 5: 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 5 | Preparation of Oil-Based Foam Gel with Nano-SiO2 as Foam Stabilizer and Evaluation of Its Performance as a Plugging Agent for Fractured Shale 