SUBSEA REJECT HANDLING

The present invention provides a subsea separation system for separating a product stream, comprising: a bulk separation unit (1), an oil polishing unit (2), and a water polishing unit (3), the bulk separation unit (1) comprises an inlet (4) for the product stream, a first outlet (5) for a water pha...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Ellingsen Haakon, Kolbu Jostein, Bjartnes Henrik, Høy Sven Haagensen
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROMSOLID MATERIALS OR FLUIDS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS TRANSPORTING
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Beschreibung
Zusammenfassung:	The present invention provides a subsea separation system for separating a product stream, comprising: a bulk separation unit (1), an oil polishing unit (2), and a water polishing unit (3), the bulk separation unit (1) comprises an inlet (4) for the product stream, a first outlet (5) for a water phase, a second outlet (6) for an oil phase, and a third outlet for a gas phase (15); the oil polishing unit (2) comprises an inlet (7), a first outlet (8) for a clean oil phase, and a second outlet (9) for a reject stream, and the inlet is in fluid communication with the second outlet (6) of the bulk separation unit (1); the water polishing unit (3) comprises an inlet (11) in fluid communication with the first outlet (5) of the bulk separation unit, a first outlet (12) for a reject stream, and a second outlet (13) for a clean water phase, wherein a first conduit connects the second outlet (9) of the oil polishing unit upstream of, or to, the water polishing unit (3), and a second conduit connects the first outlet (12) of the water polishing unit upstream of or to, the oil polishing unit (2), and wherein the first and/or second conduit comprises a pressurizing device (14, 16) for increasing the pressure of a reject stream.