Two-phase flows in micromodels

 

Two-phase experiment in a micromodel that represents complex natural porous media (sandstone)

 

A non-wetting fluid (oil) displaces a wetting fluid  (water/glycerin).

 

Black: grains

Green: water/glycerin + particles

White: oil

Size: 100µmx150µm (x12µm depth)

 

Two-phase experiment in a micromodel that represents complex natural porous media (sandstone)

 

A non-wetting fluid (oil) displaces a wetting fluid  (water/glycerin).

 

 

Grey: grains

Green: water/glycerin + particles

White: oil

 

The approaching interface result in the perturbation of the flow pattern.

 

Two-phase experiment in a micromodel that represents complex natural porous media (sandstone)

 

A non-wetting fluid (oil) displaces a wetting fluid  (water/glycerin).

 

After the passage of the interface (oil in white), preferential paths continue to change

Gray: grains

White: oil

Green: water/glycerin + particles