FIELD: oil and gas production. SUBSTANCE: hydrocarbon solvent is injected before and after injection of mixture of acid with surfactant and alcohol-containing component (ratio of the two latter being 1:1). EFFECT: increased wetting ability of acid oil ring and created favorable conditions for oil filtration, increased output of well, reduced water level in product. 2 cl, 2 dwg
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Authors
Dates
2000-12-27—Published
2000-04-21—Filed