FIELD: oil extractive industry.
SUBSTANCE: method includes pumping of polyurethane prepolymer with amount of isocyanates groups 2-30%, mixed with diesel fuel with amount of diesel fuel 20-30%. Then anhydrous liquid and water solution with thickening agent is pumped again. All this technological liquids are supplied two treated range and supplied into treated area with productiveness 2.5-3.5 liters per second. Technological time lag is performed for at least 10 minutes. After that, well washing by reciprocal washing with counter-pressure equal to pressure at the start of washing process. Washing volume is set no less than volume of tubing column. After pumping of 2/3 of volume of washing fluid, counter-pressure is gradually decreased down to atmospheric. Well is then sealed and technological lag of no less then 48 hours is performed.
EFFECT: higher productiveness of method.
2 ex
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