FIELD: oil industry.
SUBSTANCE: invention relates to oil industry, namely to method of water shutoff works in well. Method includes stages, at which insulating compound is prepared in volume exceeding internal volume of well from bottomhole to upper border of perforation interval. Then filling pipe string is lowered into well, insulating compound is poured into well at least to upper border of perforation interval with flushing into formation. Wherein at different levels along perforation interval insulating compound with different values of mobility is poured. Filling pipe string is removed from well. Insulating compound is left to harden. After hardening of insulating compound insulating compound is drilled and formation is opened by sparing well perforation in roof part of formation.
EFFECT: technical result is high efficiency and reliability of water shutoff in well.
14 cl, 3 dwg
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