FIELD: oil-and-gas industry.
SUBSTANCE: injection wells and horizontal extracting wells are drilled, heat carrier is injected via injection wells and oil is extracted through production wells. Horizontal well is drilled above the water-oil surface (WOS) while vertical well is drilled at least 50 m from horizontal well bottom. Pool is exposed another time in vertical well above and below horizontal well. Pipe string is downed in injection well to set packer in place between openings. Displacement agent is injected via top opening and pipe space while bottom opening - via pipe string.
EFFECT: higher efficiency of oil displacement, increased oil extraction, higher extraction rate.
1 ex, 1 dwg
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