The twin-screw pump from Flowserve, in partnership with Shell, was tested to a differential pressure of 2,500 psi (172 bar). The performance was mapped with liquid viscosities varying from 2 cp to 2,000 cp. Flowserve has designed the twin-screw pump with a nominal displacement of 90,000 barrels per day at the rated speed of 1,800 rpm for this high-boost requirement. Final design conditions for the pumping system are targeted at 3,000 psi (207 bar) boost pressure in multiphase service with a power in excess of 5 MW and a water depth capability of 3,000 m.
Full string testing on the core technology will take place later this year at the Flowserve high-power test facility located in Etten Leur, the Netherlands.