FIELD: chemistry.
SUBSTANCE: microemulsion for oil extraction contains the following in wt %: polyethylene polyamine with molecular mass of 144 and content of tertiary amino groups of 6.6 wt % 3.41-7.95; oleinic acid 7.84-18.3; trimethyl carbinol 3.75-8.75; kerosene 15-35; water - the rest. The ratio oleinic acid : polyethylene polyamine with molecular mass of 144 and content of tertiary amino groups of 6.6 wt % equals 1.6 : 3.0 wt, the ratio trimethyl carbinol : polyethylene polyamine with molecular mass of 144 and content of tertiary amino groups of 6.6 wt % equals 0.6:1.1 wt.
EFFECT: reduced viscosity of microemulsions and increase of their permeability in rocks of oil formations.
5 tbl
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