COMPOSITION FOR TREATING WELL BOTTOM ZONE

FIELD: oil and gas production. SUBSTANCE: composition contains, wt.%: 10-12-% aqueous hydrochloric acid solution, 10.0-18.0; 1.5-5.0-% aqueous hydrofluoric acid solution, 1.5-5.0; and organic solvent, the balance. The latter is a mixture of alkane and aromatic hydrocarbon containing, wt.%: benzene, 0.5-1.0; toluene, 1.0-1.5; C8-alkylbenzene, 20.0-25.0; C9-alkylbenzene, 35.0-40.0; C10-alkylbenzene, 1.0-5.5; C11(and higher)-alkylbenzene, 0.5-1.0; and C4-C10-alkanes, the balance. EFFECT: optimized analysis of composition. 3 ex