Seabed Separation AS has developed the Dual Pipe Separator (DPS) to be installed downstream a subsea template with the service to separate and decant the water that is flowing in the pipeline. The DPS is installed as a system that normally operates together with downstream pumps.
The DPS is a tilted separator having an inner pipe that assist in separating the oil and the water. The clean phases are removed from the separator through opening in the bottom (water) and the top (oil). The water is removed by the water pump (re-injected) while the oil and gas are boosted to host. This operation can reduce the operational pressure down to i.e. 10 bar and > 10 % IOR.
The DPS is designed for 3000 m water depth and 350 bar shut in pressure.