FIELD: oil and gas industry.
SUBSTANCE: in method of protection against sand phenomena in oil wells, which involves subsequent pumping to the formation through production well of gaseous agent, solution of urethane pre-polymer in acetone, water with the above solution pushed to the formation, there performed is the above pumping of gaseous agent during not less than one 1 hour at pressure exceeding formation pressure by 1.1-1.9 times, water pumping - in volume of 0.5-2 parts of the volume of the polymer solution at its concentration of 10-40%, and after the above solution is pumped, gaseous agent is also pumped till the pumping pressure is stabilised.
EFFECT: increasing efficiency of reduction of sand phenomena in oil wells at maintaining the productivity.
2 ex
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