FIELD: oil industry. SUBSTANCE: intermediate emulsion layer forming in the process of output and preparing of oil is pumped over by closed circuit under water layer and settled. In the process of pumping over emulsion layer is treated with composition containing nonionogenic deemulsifier made on the basis of block-copolymers of ethylene and propylene oxides, for example Separol WF-34, Diproxamine 157-65M, anion-active reagent on the basis of alkyl- benzenesulfonate sodium, for example, sulfonol, and solvent on the basis of aromatic hydrocarbon at mass ratio of components 1:(1.75-60):(20-25), respectively. EFFECT: improved method of emulsion layer rupture. 1 tbl, 1 dwg
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