China's Shandong Jereh Offshore Engineering Company Ltd has delivered specialized water and oil treatment units for two new floating production storage and offloading (FPSO) vessels destined for Petrobras. The units, comprising slop treatment systems and oil purifiers, were supplied to CIMC Raffles, which is involved in the construction of the P-84 and P-85 FPSOs.

Project and Contract Background

The two FPSOs are for the Atapu and Sepia oilfields in Brazil's Santos basin. Petrobras awarded the main engineering, procurement, and construction (EPC) contract for these vessels to Singapore's Seatrium in 2024. Seatrium then subcontracted CIMC Raffles to build the hulls and living quarters, with CIMC Raffles also holding EPC responsibilities for selected topside modules.

Technical Specifications and Environmental Role

The delivered treatment units are critical topside process configurations designed to handle slop water generated from deck drainage, machinery space oily water, and other intermittent oily effluents during FPSO operations. They feature Alfa Laval disc-type centrifugal separators, which the contractor states offer improved efficiency and operational stability over conventional methods. A primary function of these systems is to ensure that discharged water meets Petrobras's environmental standards and complies with international MARPOL regulations.

Strategic Importance and Vessel Capabilities

The company emphasizes that reliable and efficient slop treatment is essential for the long-term operational stability of FPSOs. The P-84 and P-85 facilities are part of Petrobras's new generation of FPSOs, which prioritize sustainable practices and innovative technology. These vessels will incorporate advanced systems for zero routine flaring and venting, variable speed drives, and emissions and carbon dioxide control measures. Each floater will have a substantial production capacity of 225,000 barrels of oil per day and a gas processing capacity of 10 million cubic metres per day.