FIELD: oil and gas industry.
SUBSTANCE: invention relates to the field of cementing casing strings in gas, gas condensate and oil wells. The grouting composition contains grouting Portland cement without additive of high sulfate resistance PCG I-G-CC-1, powdered quartz of the “B” brand, KUK-B-3 fly ash, condensed silica MK-85, plasticizer based on WellFix P-100 polycarboxylate polymers, calcium chloride, aluminum powder PAP-1, Neonol AF 9-4, Natrosol 250 KR hydroxyethyl cellulose, 18% sodium chloride solution.
EFFECT: combination of components in a certain ratio provides a high insulating ability, the formation of a stone resistant to the aggressive effects of very strong brines.
1 cl, 1 tbl
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