METHOD OF RESTRICTION OF WATER INRUSH IN WELL Russian patent published in 2009 - IPC E21B33/138 

FIELD: mining.

SUBSTANCE: method of restriction of water inrush in well consists in preparing and pumping water solution of silicon-organic liquid - SL into well; water solution of SL is obtained by mixing it with reservoir water of 1000-1180 kg/m³ density at following ratio of components, vol. %: SL 20-70, reservoir water of 1000-1180 kg/m³ density 30-80, additionally before and after pumping water solution of SL water solution of sodium silicate of 1050-1100 kg/m³ is pumped at following ratio of reagents, vol. %: water solution of sodium silicate of 1050-1100 kg/m³ 20-40; said solution of SL 60-80.

EFFECT: increased efficiency of water insulating operations due to reduced time for gel-forming, reduced general time of insulating operations, due to elimination of emergency situations at simultaneous expanding functionality of method under conditions of low temperature well.

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