Development of Risk-Reliability Based Underwater Inspection for Fixed Offshore Platforms in Indonesia

In RBUI method, platform with higher risk level will need inspection done more intensively than those with lower risk level. However, the probability of failure (PoF) evaluation in RBUI method is usually carried out in semi quantitative way by comparing failure parameters associated with the same da...

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Main Authors: Tawekal Ricky L., Purnawarman Faisal D., Muliati Yati
Format: Article
Language:English
Published: EDP Sciences 2018-01-01
Series:MATEC Web of Conferences
Online Access:https://doi.org/10.1051/matecconf/201814705002
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author Tawekal Ricky L.
Purnawarman Faisal D.
Muliati Yati
author_facet Tawekal Ricky L.
Purnawarman Faisal D.
Muliati Yati
author_sort Tawekal Ricky L.
collection DOAJ
description In RBUI method, platform with higher risk level will need inspection done more intensively than those with lower risk level. However, the probability of failure (PoF) evaluation in RBUI method is usually carried out in semi quantitative way by comparing failure parameters associated with the same damage mechanism between a group of platforms located in the same area. Therefore, RBUI will not be effective for platforms spread in distant areas where failure parameter associated with the same damage mechanism may not be the same. The existing standard, American Petroleum Institute, Recommended Practice for Structural Integrity Management of Fixed Offshore Structures (API RP-2SIM), is limited on the general instructions in determining the risk value of a platform, yet it does not provide a detail instruction on how determining the Probability of Failure (PoF) of platform. In this paper, the PoF is determined quantitatively by calculating structural reliability index based on structural collapse failure mode, thus the method in determining the inspection schedule is called Risk-Reliability Based Underwater Inspection (RReBUI). Models of 3-legs jacket fixed offshore platform in Java Sea and 4-legs jacket fixed offshore platform in Natuna Sea are used to study the implementation of RReBUI.
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spelling doaj.art-73f10916b2514685af2dc0a335c70bf12022-12-21T21:28:14ZengEDP SciencesMATEC Web of Conferences2261-236X2018-01-011470500210.1051/matecconf/201814705002matecconf_sibe2018_05002Development of Risk-Reliability Based Underwater Inspection for Fixed Offshore Platforms in IndonesiaTawekal Ricky L.Purnawarman Faisal D.Muliati YatiIn RBUI method, platform with higher risk level will need inspection done more intensively than those with lower risk level. However, the probability of failure (PoF) evaluation in RBUI method is usually carried out in semi quantitative way by comparing failure parameters associated with the same damage mechanism between a group of platforms located in the same area. Therefore, RBUI will not be effective for platforms spread in distant areas where failure parameter associated with the same damage mechanism may not be the same. The existing standard, American Petroleum Institute, Recommended Practice for Structural Integrity Management of Fixed Offshore Structures (API RP-2SIM), is limited on the general instructions in determining the risk value of a platform, yet it does not provide a detail instruction on how determining the Probability of Failure (PoF) of platform. In this paper, the PoF is determined quantitatively by calculating structural reliability index based on structural collapse failure mode, thus the method in determining the inspection schedule is called Risk-Reliability Based Underwater Inspection (RReBUI). Models of 3-legs jacket fixed offshore platform in Java Sea and 4-legs jacket fixed offshore platform in Natuna Sea are used to study the implementation of RReBUI.https://doi.org/10.1051/matecconf/201814705002
spellingShingle Tawekal Ricky L.
Purnawarman Faisal D.
Muliati Yati
Development of Risk-Reliability Based Underwater Inspection for Fixed Offshore Platforms in Indonesia
MATEC Web of Conferences
title Development of Risk-Reliability Based Underwater Inspection for Fixed Offshore Platforms in Indonesia
title_full Development of Risk-Reliability Based Underwater Inspection for Fixed Offshore Platforms in Indonesia
title_fullStr Development of Risk-Reliability Based Underwater Inspection for Fixed Offshore Platforms in Indonesia
title_full_unstemmed Development of Risk-Reliability Based Underwater Inspection for Fixed Offshore Platforms in Indonesia
title_short Development of Risk-Reliability Based Underwater Inspection for Fixed Offshore Platforms in Indonesia
title_sort development of risk reliability based underwater inspection for fixed offshore platforms in indonesia
url https://doi.org/10.1051/matecconf/201814705002
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AT purnawarmanfaisald developmentofriskreliabilitybasedunderwaterinspectionforfixedoffshoreplatformsinindonesia
AT muliatiyati developmentofriskreliabilitybasedunderwaterinspectionforfixedoffshoreplatformsinindonesia