THICKENER aqueous acid and / or salt, METHOD gelled aqueous acid and / or salt and process oil production from the application of these thickeners, a set of components for thickening an aqueous acid and / or salt AND COMPOSITION FOR IMPLEMENTATION acid fracturing comprising said THICKENER

摘要

FIELD: chemistry.SUBSTANCE: invention relates to thickening of aqueous solutions of acids and salts and use of thickened solution for hydraulic fracturing of the formation. Use of the combination: a) a zwitterion compound of formula I,where R is a saturated, mono-, di- or tri-unsaturated hydrocarbon radical C-C; Rrepresents -COOor -CHCOO; R, R, R, Rindependently represent hydrogen, methyl, ethyl, propyl, isopropyl, allyl, vinyl, phenyl or benzyl; b) a compound selected from a group consisting of diethanolamides of C-Cfatty acids, alkyl dimethylamine oxide, hydroxyethyl alkyl imidazole, butyl glycol, cinnamaldehyde and oxycinnamates; and c) optionally, an iron converter for thickening the aqueous solution of the acid and / or salt.EFFECT: high efficiency of proppant transfer over a long period of time, high efficiency of extracting hydrocarbons from the formation.25 cl, 8 dwg, 9 tbl