FIELD: chemistry.
SUBSTANCE: group of inventions relates to methods of sealing influx of reservoir fluid (water) or gas in wells. The sealing mud contains the following, wt %: sodium silicate - 5-50; bentonite - 15-55; polyacrylamide - 0.0005-0.5; water - the balance. Packer equipment for sealing the sealed interval is fitted and injectivity is determined. Spacer fluid, sealing mud of said composition, spacer fluid and a calcium ion-containing solution are successively pumped and held for the structure formation period, followed by depressurisation, removal of the packer equipment and fitting a cement bridge.
EFFECT: high reliability and technological effectiveness of the sealing method owing to high stability of properties (viscosity, homogeneity) of the sealing mud during preparation thereof and when pumping into the formation, faster repairs.
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