FIELD: oil and gas industry.
SUBSTANCE: composition includes 36% hydrochloric acid, corrosion inhibitor CI-118, 86.5% fresh water, formylic acid, disodium edetate of ethylene diaminetetra-acetic acid, ammonium bifluoride, sodium erythorbate, oil wetting agent GF 15MPS.
EFFECT: obtaining the acid composition, having high solubility of the productive formation carbonate component, lowered surface tension on the border of kerosene-acid composition, low rate of corrosion and non-generating the insoluble precipitates at high reservoir temperatures.
3 tbl, 4 ex
| Title | Year | Author | Number |
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| ACIDIC COMPOSITION FOR TREATMENT OF FORMATION BOTTOM-HOLE ZONE | 2019 |
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| ACID COMPOSITION FOR TREATMENT OF WELLS IN CARBONATE AND TERRIGENOUS RESERVOIRS, AND ACID TREATMENT METHOD OF BOTTOM-HOLE ZONE OF FORMATION WITH ITS APPLICATION | 2013 |
|
RU2543224C2 |
| ACID SURFACE-ACTIVE COMPOSITION FOR TREATING BOTTOM-HOLE ZONE OF OIL AND GAS WELLS | 2015 |
|
RU2643050C2 |
| ACID COMPOSITION FOR TREATMENT OF LOW PERMEABLE HIGH TEMPERATURE FORMATIONS WITH HIGH CLAY AND CARBONATES CONTENT | 2016 |
|
RU2616949C1 |
| DRY ACID COMPOSITION FOR ACID TREATMENT OF CARBONATE AND TERRIGENOUS RESERVOIRS AND METHOD OF ITS USE | 2018 |
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RU2689937C1 |
| HYDROCHLORIC ACID COMPOSITION FOR TREATMENT AND CLAY CAKE REMOVAL OF BOTTOMHOLE FORMATION ZONE | 2018 |
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RU2704167C1 |
| MULTIFUNCTIONAL ACID COMPOSITION FOR TREATMENT OF BOTTOMHOLE FORMATION ZONE AND METHOD OF ACID TREATMENT FOR BOTTOMHOLE FORMATION ZONE | 2014 |
|
RU2572401C2 |
