FIELD: mining.
SUBSTANCE: method consists in pumping following into oil pool via pressure wells: first fringes of fresh water in volume of 100-150 m3 per 1m of effective oil saturated thickness of oil pool, further fringes of mixture of 0.25% solution of caustic soda in water with 0.1% solution of polyacrylamide in water of volume 40-60 m3 per 1 m of effective oil saturated thickness of oil pool. Total volume of fringes of alkali-polymer solution is accepted in volume of 0.15-0.2 of volume of pores of oil pool. Driving of fringes is every time performed with fringes of fresh water.
EFFECT: upgraded efficiency of method of development due to extended zone of coverage of oil pool at watering.
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