FIELD: chemistry.
SUBSTANCE: invention concerns composition for water supply limitation and insulation in wells and can be applied for insulation of space between casings, casing string and threaded joint sealing, insulation of watered layers in oil and gas wells. Composition for water supply limitation and insulation in wells includes, wt %: acetone formaldehyde resin 20.0-70.0, surfactant or surfactant mix 0.5-4.0, elastomer, natural or synthetic rubber or rubber mix 0.05-50.0, polymerisation initiation agent 0.5-10.0, the rest is water.
EFFECT: enhanced insulation and elastic strain properties, resistance to aggressive formation media.
1 ex, 2 tbl
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