METHOD FOR RECOVERY OF FLUID MEDIUM FROM EARTH FORMATION Russian patent published in 1999 - IPC

FIELD: mining industry. SUBSTANCE: method relates to recovery of liquid from earth formation containing separate zones of liquid located at distance from each other. Method for recovery of liquid from earth formation includes first zone of liquid 21, second zone of liquid 23 located at certain distance from first zone of liquid, and barrier zone 25 located between two aforesaid zones of liquid. Recovery of liquid is effected through producing well 31 provided with inlet hole for liquid located in first zone of liquid. Method implies construction of inclined section of well 39 which is part of auxiliary well 35 constructed in earth formation. Inclined section of well extends through first zone of liquid, barrier zone, and second zone of liquid so as to ensure communication of liquid between aforesaid zones of liquid. Also included is stage of closing auxiliary well at selected point so as to prevent any penetration of liquid flow from liquid zones through auxiliary well to ground surface. Also included is stage of recovery of liquid from second zone of liquid through inclined section of well to first zone of liquid and through producing well. Application of aforesaid method allows for economic recovery of liquid from various zones of liquid located at certain distance from each other. EFFECT: higher efficiency. 17 cl, 5 dwg