FIELD: oil production, particularly to develop oil fields with natural water-oil zones or ones formed during oil field development at early and latter development stages.
SUBSTANCE: oil production method involves perforating casing pipe; producing oil by pumping out thereof; installing packer and injecting well fluid from oil-saturated zone. Total productive reservoir interval is perforated up to oil-water contact. Supply channels are created by radial drilling-in roof reservoir section. Descending produced liquid flow is created in opened production reservoir zone inside well bore. Then liner is lowered under productive interval and packer is installed within the boundaries of productive reservoir roof.
EFFECT: increased oil recovery of oil field having oil-water zones, increased well yield due to decreased amount of produced water and increased well operation time.
1 dwg
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