MINE OIL FIELD DEVELOPMENT METHOD Russian patent published in 2006 - IPC E21B43/24 

FIELD: oil production industry, particularly mine development of oil fields.

SUBSTANCE: method involves boring production bores from ground surface to productive bed bottom in advance of other field facilities building; previously degassing the formation through surface production wells along underground production galleries driven in vertical plane as broken lines along productive bed bottom; aligning recessed productive gallery sections with face areas of surface production wells; forming sump holes for produced liquid accumulation in above recessed productive gallery sections, whereon production gallery path amplitude does not exceed excavation height and productive gallery inclinations in broken line sections thereof are maintained within permissible limit; drilling underground slightly rising and horizontal bores from production galleries through productive bed; conveying liquid drained from underground wells and accumulated in oil gathering gutters formed along production galleries to sump holes; pumping-out liquid from sump holes through surface production wells to ground surface and conveying thereof to oil transport pipeline.

EFFECT: increased oil output.

1 ex, 3 dwg