EGEL
Energy GeoEngineering Laboratory

Particle Clogging in Radial Flow: Microscale Mechanisms

Particle Clogging in Radial Flow: Microscale Mechanisms

​Valdes, J. R. and Santamarina, J. C. (2006). "Particle Clogging in Radial Flow: Microscale Mechanisms." SPE Journal, pp. 193-198
Julio R. Valdes and J. Carlos Santamarina
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2006
Fluid-flow-driven particle migration through porous networks reflects the interplay between various particle-level forces, the relative size between migrating particles and pore constrictions, and the spatial variability of the velocity field.  Experimental evidence shows that particle migration in radial fluid flow results in self-stabilizing annual clogging patterns when the particle size approaches the constriction size. Conversely, flow localization and flushing instability are observed when the particle size is significantly smaller than the pore-throat size.