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This is a Quantitative Study study.

October 23, 2025

Hull Design and Operational Challenges for a Normally Unattended FPSO in Offshore Brazil

Key Points

Operational expenditures may be reduced with advanced technologies and efficient hull design in offshore applications.
The study emphasizes that effective inspection and maintenance activities can be conducted remotely, ensuring safety.
Analysis of hull design focuses on minimizing onboard personnel for normally unattended Floating Production Storage and Offloading vessels in Brazil.
The findings suggest that integrating robotics and remote control systems enhances the operational capabilities of FPSOs.

Abstract

Abstract For many offshore developments, there is a drive to reduce the offshore facility's manpower requirements during operations and maintenance activities to improve personnel safety and to reduce operational expenditures. This paper presents key hull design features for a Normally Unattended FPSO (NUFPSO) for Brazil offshore operations. The overall objective is to develop a conceptual hull design for NUFPSO that will minimize the need for marine onboard personnel during operations, inspection, and maintenance activities while also maintaining the overall asset safety and operability. The associated challenges for remotely operating the NUFPSO are also highlighted, while leveraging several decades of Petrobras’ FPSO operational experience. The paper also highlights the importance of integrating advanced technologies (such as remote monitoring /control and robotics) with a modified hull design to support the NUFPSO concept.

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