FIELD: oil producing industry; simultaneous gathering of oil, gas and water via pipe lines for field gathering stations. SUBSTANCE: gas-water-oil emulsion from group units is fed via gathering pipe line to end phase separator where it is separated into three phases: gas, oil and water. Separated water with residual content of oil is directed via pipe line to consumer where it is used for injection into zone of formation. Separated gas and gas-water-oil mixture flow to mixing filter simultaneously in separate flows where they are additionally cleaned of mechanical impurities and oil, gas and water are mixed to homogeneous mixture which is fed to multi-phase pump afterwards. EFFECT: enhanced efficiency. 1 dwg
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