FIELD: oil producing industry. SUBSTANCE: method includes obtaining of hydrofluoric acid in formation by separate injection into formation of fluoride salt and hydrochloric acid. The latter is injected into formation in form of emulsion of second type. Injection of emulsion and aqueous solution of fluoric salt is carried out simultaneously-separately through pipes and drill string-borehole annulus. EFFECT: higher efficiency. 3 tbl
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Authors
Dates
1994-10-15—Published
1989-12-29—Filed