| 摘要 |
FIELD: oil and gas industry, particularly compositions to treat bottomhole formation zone. ^ SUBSTANCE: composition comprises hydrochloric acid HCl in amount of 24.2% by weight, hydrofluoric acid HF in amount of 9.0-10.3% by weight,, inhibitor, namely ascorbic acid C6H8O6 in amount of 3.6-5.2 % by weight and water in amount of 57.8-62.5% by weight. ^ EFFECT: reduced solubility of mineral contained in rock having high clay cement content. ^ 1 tbl |
