Salt precipitation during solution evaporation in low-permeability rocks

The effect of admixture diffusion on the process of precipitation during solution evaporation in high-temperature low-permeability rocks is investigated. It is found that at permeabilities lower than 0.01 mD the two-valued solution is restructured becoming single-valued. As a result, during salt precipitation in low-permeability rocks where admixture diffusion is important, a solution exists for any flow regime and the channels in the porous medium are not blocked by solid-phase salt.