Modified Formulations of Particle Deposition and Removal Kinetics in Saturated Porous Media

Important revisions on the particulate deposition and removal rate equations are offered for flow of particulate suspensions through saturated porous media by distinguishing between the factors effecting the mechanisms of various particle deposition and removal processes, and their rate coefficients and parameters. Formulation considers particle transport by convection and dispersion toward open and partially jammed pores, flux of particles above a critical minimum in suspension, unblocked particles available for removal at the pore surface, shear-force below critical for deposition of suspended particles, shear-force above critical for entrainment of unblocked surface particles, active ion concentration below critical for spontaneous particle release from pore surface, critical pore-throat-to-particle diameter ratio for pore-throat jamming, deformation and pore-sealing effects of elastic particles, internal filter cake formation by particle accumulation behind pore throats, normal-force above critical for dislocation of deposits from pore throats, and thermal-, concentration-, stress-, and mobility-shock phenomena. Inherent limitations of previous outstanding rate equations are alleviated by means of theoretical reasoning and/or experimental observations.