Particle migration can occur when the mixing of incompatible fluids mobilizes clays or very fine particles precipitate out of solution. This process is most likely to occur when solutions with low concentrations of salts are mixed with reservoir fluids containing high concentrations, or when highly alkaline solutions dissolve silica and release fines. This type of reaction is of concern primarily when it occurs near the injection zone, because particle migration can clog pores and drastically reduce permeability. McDowell-Boyer and colleagues61 provide a good review of the literature on subsurface particle migration.
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You can now recondition your old batteries at home and bring them back to 100 percent of their working condition. This guide will enable you to revive All NiCd batteries regardless of brand and battery volt. It will give you the required information on how to re-energize and revive your NiCd batteries through the RVD process, charging method and charging guidelines.