FIELD: oil and gas production industry. SUBSTANCE: plugging compound is used for local hermetic sealing of casing clearance and annular space in oil and gas wells. Plugging compound contains urethane prepolymer and water. Plugging compound additionally contains hydrocarbon solvent from line C3-C16 in amount of 50-25 mas. pts, amino alcohol from line C2-C4 in amount of 2.5-5.5 mas. pts, neutral finely powder in amount of 6-9 mas.pts, and water in amount of 3-5 mas.pts. Used in function of urethane polymer is polyurethane glue in amount of 30-60 mas.pts. Application of aforesaid plugging compound ensures durable protection of producing wells against interflows of fluids and gases from casing clearance and annual space. EFFECT: higher efficiency. 4 tbl
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