FIELD: gas extractive industry.
SUBSTANCE: method includes orderly feeding of buffer liquid into bed - water solution of metal salt and cementing compound with forming in bed conditions with calcium ions of a compound non-soluble in water - alkali sediment, as water solution of metal salt a 10-30% water solution of sodium hydrosulphate is used, and as cementing compound - water solution of chlorine calcium, feeding of each of said solutions is performed in even portions, volumes of which are determined on basis of thickness of productive bed and well diameter or speed of absorption of fed solutions. In bed with penetrability 100 mcm2 said sediment is reinforced by cement bridge. Feeding of solutions into bed is performed as in stopped well, as in operating well. For delivery of solutions to given well perforation zone and providing for calculated speed of pumping coltubing is used.
EFFECT: higher effectiveness of isolation due to creation of stable volumetric sediment in watered portions of bed, which prevents influx of bed waters.
4 cl, 2 tbl
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