The OneSubsea Multiphase Wet Gas Compressor is a counter-rotating multiphase compressor based on a hydraulic and mechanical design, specifically set up for pressure boosting of an unprocessed wellstream. The unit is integrated and fully encapsulated, based on a well-proven design.
The multiphase compressor concept is ideal for subsea applications with a compact design, without any need for an auxiliary anti-surge control system, inter-cooler or inlet scrubber.
It is designed in three main parts: upper electric motor, compressor section, and lower electric motor. A barrier fluid system is used to provide overpressure protection, lubrication, and continuous cooling of the multiphase compressor's critical parts, during all modes of operation. All process, electrical power, auxiliary, and instrumentation connections are well-proven components, utilized in more than 25 subsea pumping projects.
The multiphase compressor includes the following features:
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