Experimental Investigation of Water–Sand Mixed Fluid Initiation and Migration in Porous Skeleton during Water and Sand Inrush

<div>Schematic of water–sand separation phase velocimeter (WPV): (a) water–sand separation phase velocimeter, and (b) working principle of constant volume liquid cup.</div>

Geofluids

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Figure 4

Figure 4: Experimental Investigation of Water–Sand Mixed Fluid Initiation and Migration in Porous Skeleton during Water and Sand Inrush 