FIELD: oil production industry, particularly methods for stimulating production with the use of eroding chemicals, for instance acids.
SUBSTANCE: method involves serially ejecting emulsion and acid solution into bottomhole formation zone. The emulsion comprises hydrochloric acid HCl of 15-20% concentration in amount of 44.1-51.1% by weight, carboxymethyl cellulose of 1.5-2.0% concentration in amount of 1.5-2.5% by weight and 46.4-54.4% by weight of water. The acid solution includes hydrochloric acid HCl of 15-20% concentration in amount of 34.5-56.6% by weight, benzoic acid C6H5COOH with 0.25-0.5% concentration in amount of 0.25-0.5 and 42.9-62.25% by weight of water.
EFFECT: increased depth of acid solution penetration into formation.
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