FIELD: oil and gas extractive industry.
SUBSTANCE: method includes driving of horizontal-slanted wells in sub-gas area of deposit with their perforation with placement of their upper perforation range above oil-gas contact at distance from 0 to 20 meters. Lower perforation range is placed in sub-gas or oil area. Extraction of deposit is performed with support of pressure by pumping in of working agent or in mode of gas repression. During deposit extraction in gas repression mode periodical measurement of gas-liquid factor is performed, in case of exceeding of which more than 600-700 m3/ton, upper interval of perforation of horizontal-slanting wells is lowered until reaching given value of gas-liquid factor. Lower perforation interval for horizontal-slanting wells is placed in area of gas-oil contact.
EFFECT: higher oil yield.
3 cl, 3 ex, 2 tbl, 8 dwg
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