FIELD: petroleum industry.
SUBSTANCE: invention relates to aqueous condensed acidic compositions and methods for their using under condition of petroleum output. Aqueous condensed acidic composition comprises at least one acid chosen from group consisting of hydrochloric, hydrofluoric, acetic, formic, sulfamic and chloroacetic acids and their mixtures, and a gel-forming agent for indicated acid wherein gel-forming agent comprises at last one glycol as a solvent and at least one amidoaminoxide of indicated general formula given in the invention description and wherein indicated gel-forming composition comprises less about 10% of free fatty acid. Invention provides intensifying inflow into a hole, enhancing productivity of hydrocarbon-containing beds.
EFFECT: improved and valuable technical properties of compositions.
31 cl, 3 dwg, 2 ex
