Functional Reliability Study of the Electrical Power System, Automation System and Ballast System to Maintain the Balance of a FPSO Platform (2010)

Functional Reliability Study of the Electrical Power System, Automation System and Ballast System to Maintain the Balance of a FPSO Platform Gustavo Cruzeiro Rocha; Gustavo Cruzeiro Rocha Bureau Veritas Search for other works by this author on: This Site Google Scholar José Marcio Vasconcellos; José Marcio Vasconcellos COPPE – UFRJ Search for other works by this author on: This Site Google Scholar Paulo Fernando Frutuoso e Melo Paulo Fernando Frutuoso e Melo COPPE – UFRJ Search for other works by this author on: This Site Google Scholar Paper presented at the SPE International Conference on Health, Safety and Environment in Oil and Gas Exploration and Production, Rio de Janeiro, Brazil, April 2010. Paper Number: SPE-127147-MS https://doi.org/10.2118/127147-MS Published: April 12 2010 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Get Permissions Search Site Citation Rocha, Gustavo Cruzeiro, Vasconcellos, José Marcio, and Paulo Fernando Frutuoso e Melo. "Functional Reliability Study of the Electrical Power System, Automation System and Ballast System to Maintain the Balance of a FPSO Platform." Paper presented at the SPE International Conference on Health, Safety and Environment in Oil and Gas Exploration and Production, Rio de Janeiro, Brazil, April 2010. doi: https://doi.org/10.2118/127147-MS Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex Search Dropdown Menu nav search search input Search input auto suggest search filter All ContentAll ProceedingsSociety of Petroleum Engineers (SPE)SPE International Conference and Exhibition on Health, Safety, Environment, and Sustainability Search Advanced Search Abstract This paper evaluates the functional reliability of the interactions amongst the electric power system, hydraulic power system, safety interlock and automation system, ballast system and the loading system of a Floating Production Storage and Offloading (FPSO) platform, considering an emergency scenario where the platform is subjected to an adverse band.This atypical situation demands a high reliability performance from the analyzed systems, because the occurrence of additional failures within those systems can lead to a lack of functionality and reduce dramatically the chance of the emergency remediation and the FPSO balance condition recovery. In an extreme case, those additional functional failures could even worsen the emergency scenario driving the platform to a band condition that would demand the crew's immediate disembarkation and abandonment of the FPSO.The study was conceived from the results of a previous Failure Mode, Effect and Criticality Analysis (FMECA) and in compliance with a specific technical specification. A Monte Carlo simulation model was built using a fault tree analysis tool taking into account all functional failures, in which the risk was considered critical or moderate during the FMECA analysis. Therefore, it was possible to quantitatively measure the probability of success of each system considered whitin the study's scope and its relative impact on the emergency treatment efforts and on the restoration of the platform's balance.The methodology presented herein represents a useful tool to evaluate the operational safety of a FPSO platform during an unexpected band scenario, where all effort relies on the performance of a few vital systems. It brings an important discussion and some recommendations in order to make the systems more robust and reliable.As a general application, this methodology can also be used as a reference for future quantitative studies that are conceived from previous qualitative analyses, helping to avoid some of the common biases involved during the conversion process. Keywords: reliability study, evaluation, ballast system, platform, petrobras, power system, functional reliability, floating production system, electric power system, subsea system Subjects: Offshore Facilities and Subsea Systems, Safety, Information Management and Systems, Floating production systems, Operational safety Copyright 2010, Society of Petroleum Engineers You can access this article if you purchase or spend a download.