Abstract: 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

Abstract: The present invention relates to a subsea system, where the subsea system comprises a separator (1) with an inlet line (2) and an outlet line (3), a compression unit (4) with an inlet line (5) and an outlet line (6) and a heat transfer unit (7), where the outlet line (6) of the compression unit (4) is guided into the heat transfer unit (7), the heat transfer unit (7) being connected to the inlet line (2) of the separator (1). According to the invention the heat transfer unit (7) is used for transferring heat between at least a part of a fluid in the inlet line (2) of the separator (1) and at least a part of a fluid in the outlet line (6) of the compression unit (4).

Abstract: A crude natural gas stream treatment system comprising a first supersonic separator and a second supersonic separator, wherein the first supersonic separator comprises a crude gas inlet, a dry gas outlet and a first liquid outlet; wherein the second supersonic separator comprises a dry gas inlet, a treated gas outlet and a second liquid gas outlet, and wherein the dry gas outlet is in fluid communication with the dry gas inlet is disclosed.