FIELD: oil industry. SUBSTANCE: urea-formaldehyde solution with molar ratio urea to formaldehyde (1.3-1):1 with concentration 0.2-0.3 wt.-% and pH = 1.5-2 is dispersed in the moving petroleum trap emulsion. Volume ratio emulsion:solution = 1:(1-2). EFFECT: enhanced effectiveness of method. 2 cl
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Authors
Dates
1994-12-15—Published
1991-11-23—Filed