International Journal Of Coastal, Offshore And Environmental Engineering(ijcoe)

International Journal Of Coastal, Offshore And Environmental Engineering(ijcoe)

Risk Assessment of Fixed Offshore Jacket Platforms: A Persian Gulf Case Study

Document Type : Original Research Article

Authors
Abdolrahim Taheri 1
Behrooz Tadayon 2
Cyrus Ershadi 3
1 Assistant Professor, Abadan Faculty of Petroleum, Petroleum University of Technology, Abadan, Iran
2 M.Sc Graduate, Civil Engineering Department, Faculty of Engineering, University of Hormozgan, Hormozgan, Iran
3 Assistant Professor, Civil Engineering Department, Faculty of Engineering, University of Hormozgan, Hormozgan, Iran
10.22034/ijcoe.2022.155145
Abstract
Offshore platforms are among important structures whose performance during their life-time and beyond is of significant importance. One of the approaches for ensuring a platform’s fitness-for-purpose condition is the structural integrity management system. In this process, a wide range of risk assessment approaches can be carried out to investigate the platforms’ performance. These assessments are divided into qualitative, semi-quantitative and quantitative methods, whose outcome is the risk level of the structure under investigation. By obtaining the risk level, the condition of the platform can be surveyed and certain actions can be defined to ensure that the platform remains fit-forpurpose. In this study, a fixed offshore jacket platform located in the phase 19 of the South Pars gas field in the Persian Gulf is investigated using a semiquantitative risk assessment method. Based on certain assumptions, the risk level obtained for this platform can be categorized as intermediate. By knowing the risk level, risk mitigation actions can be carried out and inspection intervals can beefined. 
Keywords
Risk Assessment
Structural Integrity Management
Fixed Offshore Jacket Platform
Vulnerability
Consequence of Failure
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