METHOD OF DEVELOPMENT OF NON UNIFORM OIL POOL

摘要

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.