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>(a) Foaming situation of different mass concentrations of BPMO in kerosene. (d) Foaming situation of different mass concentrations of BPMO in diesel. (c) Foaming situation of different mass concentrations of DSFA in kerosene. (d) Foaming situation of different mass concentrations of DSFA in diesel.</div>

Geofluids

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Figure 6

Figure 6: 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 6 | Preparation of Oil-Based Foam Gel with Nano-SiO2 as Foam Stabilizer and Evaluation of Its Performance as a Plugging Agent for Fractured Shale 