Fire Risk Quantitative Assessment of Offshore Supported Platform

Abstract

The living area of an offshore platform is the main living place for operators in offshore oil and gas fields. Fire risk assessment plays an important role in the safety of personnel in offshore platforms. In this paper, a fire risk assessment mathematical model for offshore platforms is proposed based on a comprehensive safety assessment method. The concept of danger time is presented according to the evaluation criteria of safe evacuation. The fire risk of offshore platforms is assessed by combining probability statistics with numerical simulation. The fire risk is quantitatively assessed by using an N500 deep water semi-submersible support platform as an example. According to the FN curve, fire frequency, fire escalation probability, and casualty probability, the rationality of marine general layout is analyzed, and the general layout design could be optimized to reduce the fire risk.

Keywords

Fire risk model / Offshore platform fire risk assessment / Evacuation under fire / FDS fire numerical simulation / General arrangement optimization