DORIS Engenharia Ltda. Chooses Intergraph® SmartMarine® Enterprise Solutions for Brazilian FPSO Projects. SmartMarine 3D is being used in front-end engineering design phase, also specified for detail design. DORIS Engenharia Ltda., the Brazilian subsidiary of France's DORIS Engineering and a specialist in the offshore oil and gas industry, has chosen Intergraph® SmartMarine® Enterprise solutions to design the topsides of eight floating, production, storage and offloading (FPSO) units for global energy leader Petrobras. The eight FPSOs will be used for pre-salt layer exploration.