FIELD: oil producing industry, particularly, compositions for acid treatment of bottom-hole zone of terrigenous formation. SUBSTANCE: composition contains the following amounts of components, wt.%: hydrochloric acid, 10-15; fluoboric acid, 2.8-3.5; or mixture of hydrofluoric and boric acids taken in stoichiometric ratio, 3.6-7.2; acetic acid, 2.5-4.0; product of reaction of tertiary amines with hydrogen peroxide (in terms of basic substance), 0.06-0.3; water, the balance. Said composition is applicable in process of oil inflow intensification and completion of wells by acid treatment of bottom-hole zone of formation terrigenous reservoirs at formation temperature from 20 to 100 C. EFFECT: higher permeability capacity of composition to oil-saturated part of formation at normal and high temperatures. 2 tbl, 3 ex
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