MultiBooster™ Subsea Multi-Phase Pump System
The MultiBooster™ subsea multi-phase pump system delivers improved oil recovery and facilitates longer step-out distances between subsea assests and host facilities by lowering pressure at the reservoir and increasing pressure in the production line. Under development since 1998, the system utilizes twin-screw internals and Aker Kvaerner’s pressure-volume regulator to provide a flexible and robust subsea solution. This design provides several key benefits when handling multi-phase flow, including a wide performance envelope, low shear fluid handling, stable speed-controlled operation, and efficient slug dampening. The pump operates efficiently within a Gas Void Fraction (GVF) range of 0-95% and can maintain pressure up to 98% GVF. The pump can also operate at 100% GVF for a limited period, which aids start-up and prevents the need to prime the pump during such a scenario. With rotational speeds of typically less than 2,000 rpm there is little risk of generating emulsions, and the pump can handle very heavy and viscous fluids in excess of 1,000 centistokes. The modular design of the pump system allows for easier subsea installation and retrieval.
The MultiBooster™ subsea multi-phase pump system delivers improved oil recovery and facilitates longer step-out distances between subsea assests and host facilities by lowering pressure at the reservoir and increasing pressure in the production line. Under development since 1998, the system utilizes twin-screw internals and Aker Kvaerner’s pressure-volume regulator to provide a flexible and robust subsea solution. This design provides several key benefits when handling multi-phase flow, including a wide performance envelope, low shear fluid handling, stable speed-controlled operation, and efficient slug dampening. The pump operates efficiently within a Gas Void Fraction (GVF) range of 0-95% and can maintain pressure up to 98% GVF. The pump can also operate at 100% GVF for a limited period, which aids start-up and prevents the need to prime the pump during such a scenario. With rotational speeds of typically less than 2,000 rpm there is little risk of generating emulsions, and the pump can handle very heavy and viscous fluids in excess of 1,000 centistokes. The modular design of the pump system allows for easier subsea installation and retrieval.
The MultiBooster™ pump system has been installed and is operational at the Lyell field (Scotland) with two more systems scheduled for start-up in the Gulf of Mexico early next year. Larger image
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