FIELD: oil production industry. SUBSTANCE: system has well production measuring unit, first and second stage separators, hot separation stage, reservoir of preliminary discharge of water with unit for taking intermediate layer with pump and pipeline of intermediate layer in which located are steam preheater and unit for centrifugal separation of phases connected by sludge line with sludge collector and having lines for outlet of oil and water. Unit for centrifugal separation is made in the form of series connected double-phase decantation centrifuge and three-phase plate-type centrifuge. Line for outlet of oil from centrifugal separation unit is connected with hot separation stage, and water outlet line is connected with system for maintaining bed pressure. EFFECT: high efficiency. 1 dwg
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