Alliance will be assisting Petrobras for up to a three-year period in the Cascade and Chinook fields. It will also support Petrobras with verification of the topsides design for a leased floating, production, storage and offloading (FPSO) early production system (EPS).

The FPSO is planned to be on location for five years. In addition, as part of a full field development (FFD) scope, Alliance will assist Petrobras with the selection and planning of the final solution to replace the EPS and produce the fields over a longer term.

Alliance said that the FPSO will have an oil storage capacity of 600,000 barrels, an oil processing capacity of 80,000 barrels per day and a gas export capacity of 16 million standard cubic feet per day.

Norb Roobaert, president of Alliance Engineering, said: Our successful track record for designing topside production facilities on FPSOs worldwide and our floating platform experience in the Gulf of Mexico has positioned Alliance as the ideal choice to support Petrobras on this development.