| 摘要 |
FIELD: oil-and-gas industry. ^ SUBSTANCE: method includes boring of production and injection wells, water pumping in, oil displacement towards to production wells and oil lifting with fountain method. Injection gas wells bored in a zone of water-oil contact dislocation - a reservoir roof zone, but production wells - by rows upwards along reservoirs form the first row near by gas injection wells till the last row in the roof zone, at distance two times greater than the distance between of already bored wells rows. Deliver high pressure gas into injection gas wells. Pump in water in the reservoir roof zone with a volume, equal to the produced oil volume. Displace oil into production wells 1st row perforation zones. Continue oil production till transition to gas production 1st row wells, after that transfer the 1st row for gas injection and start up the 2d row of production wells, which also to be transferred to gas injection after its transition on gas and start up the second row of production wells. Then continue oil production till the production wells last row transition to gas, after it stop water supply into the roof zone and transfer water injection well to oil production. ^ EFFECT: maximum oil or gas condensate recovery factor increase. ^ 3 cl, 4 ex |
