BILLINGSTAD, Norway --Aker Kvaerner Stord has ordered a vessel internal electrostatic coalescer (VIEC) from Aibel for Statoil's new Gjøa field semisubmersible production platform in the North Sea.
The VIEC will be installed in the second-stage separator. The development is tying in production from three sets of subsea wells – gas and oil wells on Gjøa, and a third cluster on the Camilla Belinda/Fram B fields (CBB).
The system will include a three-stage separation train for output from the Gjøa oil wells, and two-stage separation for the CBB oil. Gjøa's second-stage separator will perform further separation of oil from the Gjøa and CBB oil wells, and also of condensate from the scrubbers and oil reject from the hydrocyclones.
According to Aibel, the mixture of these different oils can create stable emulsions which can have a negative impact on the quality of oil and produced water.