The P-68 development was designed for ten subsea production wells and seven subsea injector wells serving Berbigão and western Sururu. Standardised subsea trees, manifolds, flowlines, risers and umbilicals connect the wells to the FPSO. The replicant oil plant receives three-phase well fluids and uses a single treatment train with free-water knock-out and two electrostatic treaters for crude dehydration and desalting before cargo storage. Associated gas is gathered through main compression, dehydrated in molecular-sieve beds, conditioned through a Joule–Thomson hydrocarbon-dew-point-control stage and passed through carbon-dioxide-removal membranes. Treated gas is compressed for export through the permanent pre-salt gas-pipeline network or for reservoir injection; carbon-dioxide-rich gas can be separately compressed and reinjected. The topsides include injection-water treatment and pumping facilities for the injector wells. The standard replicant power system comprises four gas-turbine generator packages arranged with three operating and one standby. P-68 is approximately 316 metres long and 54 metres wide, has cargo storage for about 1.6 million barrels and includes accommodation for 154 people. Its integrated topsides comprise modular process units, pipe racks and a permanent flare. Stabilised crude is transferred to shuttle tankers, while processed gas leaves through subsea export risers and pipelines. The purpose-built hull, modular topsides and standardised well and subsea interfaces enable the vessel to function as the long-term ultra-deepwater production and injection hub for both fields.