FIELD: oil and gas production. SUBSTANCE: process of well cementing includes supply of cement plugging slurry with addition of methyl cellulose or its derivatives to bottom of casing string, control over its fluidity and driving of above-mentioned slurry into string clearance. Fluidity is controlled after driving of slurry into string clearance by its heating from maximum dynamic temperature to temperature of gelatination of methyl cellulose or its derivatives. EFFECT: prevention of untimely setting of plugging slurry, improved properties of produced cement stone.
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