Experimental Studies of Brine Migration through Unsaturated Zone at an Oil Field

The problem of unsaturated zone pollution by highly mineralized field brines is considered. The results of experiments with field brines and tracer solutions were used to establish the migration mechanism of brines and tracer solutions at the first stages of their spreading with allowance made for the difference between their densities and chemical compositions. Salt transfer parameters are determined for the case of an ion not subject to sorption.