FIELD: oil and gas industry.
SUBSTANCE: under method of cleaning spent proppant from oil including pulp preparation by mixing of oily proppants with water, and ultrasound treatment of the produced pulp, said proppants are mixed with water in ratio P:W 1:3.5-5.0, treatment is performed in centrifugal field created by pulp rotation upon its supply under pressure 1.5-3.0 atm at tangent to the internal cylindrical part of separating device. Invention is developed in subclaims.
EFFECT: increased treatment efficiency.
3 cl, 2 ex, 1 tbl, 1 dwg
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