Sulzer Multiphase Pumps

Sulzer helicoaxial multiphase pumps enable boosting of the oil/gas/water mixture from producing wells, without separating the gas from the liquids. They are successfully deployed in remote or subsea location, thus making wells and fields economically viable. Multiphase pump selection cannot be based solely on one defined operating point (main duty point) as is common for process pumps or compressors for refinery duties. Multiphase pumps should therefore be designed to be able to adapt to different operating parameters by having a wide operating envelope. Flow rates and pressure predictions are never certain. The design of production facilities is generally based on extrapolations from the results of exploration well tests, delineation wells and reservoir characterization. Main benefits Helicoaxial stages axially compress the effluent to avoid separation and gas binding Stage design changes to compensate for gas compression through the pump Horizontal (onshore) or vertical (subsea) configurations to fit the application Subsea qualification testing and JIP projects welcomed Variety of sizes available from 1 to 10 MW to suit the field development, production and decline Main applications Remote or subsea multiphase pressure boosting Main design features Helicoaxial stages Cartridge construction for retrofitting ease as field conditions change Sulzer pressure boundary design experience to 1000 bar Variety of performances: single-phase, multiphase or hybrid Variety of driver types: Motor, GT, high-speed permanent magnet motor, etc.

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