FIELD: oil and gas industry.
SUBSTANCE: method of the oil recovery from the underground formation, containing the step of the aqueous composition containing from 0.05% to 5 wt % pumping into the indicated formation on the basis of the total amount of the aqueous surfactant-carboxylate alkyl- or alkenyloligoglycoside (ether) composition in accordance with the above structural formula through at least one injection wellbore and recovering the crude oil from the underground formation through at least one production wellbore. The invention has been developed in the dependent claims.
EFFECT: increase of the waterflooding efficiency.
21 cl, 2 ex, 2 tbl
| Title | Year | Author | Number |
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| HIGHLY CONCENTRATED, WATER-FREE AMINE SALTS OF HYDROCARBON ALKOXYSULFATES AND USE AND METHOD USING AQUEOUS DILUTIONS OF THE SAME | 2014 |
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| USING SURFACE-ACTIVE SUBSTANCES BASED ON SUGARS AND INCOMPLETE FATTY ACID GLYCERIDES | 2001 |
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| COMPOSITION OF SURFACTANT FOR RECOVERYING UNDERGROUND LIQUID FOSSIL FUEL | 2013 |
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| SELF-EMULSIFIABLE POLYOLEFIN COMPOSITIONS | 2012 |
|
RU2610439C2 |
