FIELD: oil and gas industry. SUBSTANCE: composition for oil displacement contains (mass parts): excess active silt from secondary settlers for biological treatment of chemical production wastewater 1.0 and supernatant fluid of raw sediment from primary settlers for biological treatment of chemical production wastewater 0.2-0.5. EFFECT: higher oil displacing ability. 6 tbl
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Authors
Dates
1995-11-10—Published
1992-05-28—Filed