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Título: APPLICATION OF RBI, RISK BASED INSPECTION, TO OIL PIPELINES ACCORDING TO THE API 581 BRD METHODOLOGY AN EVALUATION OF ITS CONSISTENCY TO THE INDUSTRY COMMON PRACTICES FOR RISK ASSESSMENT
Autor: MARIO PEZZI FILHO
Instituição: PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO - PUC-RIO
Colaborador(es):  JOSE LUIZ DE FRANCA FREIRE - ADVISOR
Nº do Conteudo: 4337
Catalogação:  29/12/2003 Idioma(s):  PORTUGUESE - BRAZIL
Tipo:  TEXT Subtipo:  THESIS
Natureza:  SCHOLARLY PUBLICATION
Nota:  Todos os dados constantes dos documentos são de inteira responsabilidade de seus autores. Os dados utilizados nas descrições dos documentos estão em conformidade com os sistemas da administração da PUC-Rio.
Referência [pt]:  https://www.maxwell.vrac.puc-rio.br/colecao.php?strSecao=resultado&nrSeq=4337@1
Referência [en]:  https://www.maxwell.vrac.puc-rio.br/colecao.php?strSecao=resultado&nrSeq=4337@2
Referência DOI:  https://doi.org/10.17771/PUCRio.acad.4337

Resumo:
An Evaluation of its Consistency to the Industry Common Practices for Risk Assessment. Society is increasingly demanding to industry actions aiming at reducing the occurrence of events with pipelines, which can result in injuries, fatalities and pollution. Market competition requires pipeline operators provide their clients with reliable and available transportation and transmission services, important links in the oil production supply chain. This scenario makes regulators to enact prescriptive measures in order to achieve higher levels regarding to pipeline integrity. Albeit these measures and the fact that sometimes pipeline operators exceed them, many accidents involving pipelines have been happening. In response to this challenging scenario, industry has been making efforts towards the systematization of integrity management considering risk. The standard API STD 1160 Managing System Integrity for Hazardous Liquid Pipelines was conceived specifically for liquid pipelines installed in high consequence areas, as defined by the North American legislation, but it doesnt contain an easy to apply and a simplified methodology. Initiatives aiming at providing the industry with simplified risk assessment methologies and tools for the optimization of inspection resources and risk reduction are welcome and should be stimulated. In this study its evaluated the applicability of the RBI methodology for processing plants and refineries, proposed in API 581 BRD, to pipelines. Its also verified the consistency of this methodology to the pipeline industry risk assessment practices, represented in this study by the commercial software IAP, Integrity Assessment Program. The API 581 BRD methodology was applied to four oil pipelines installed in an Exploration and Production business unit, using the qualitative, semi-quantitative and the quantitative approaches for risk assessment and RBI for optimizing inspection plans. The results are evaluated and discussed. Its observed limitations of API 581 BRD in regard to its application to pipelines as there are missing criteria for evaluating some pipeline typical failure modes and their respective environmental and financial consequences. These limitations result from the fundamental differences between the pipeline and pressure vessel installation ways. In spite of that, inspection plans for the pipelines studied were evaluated and the results obtained were considered consistent and satisfactory. Regarding the software IAP, mainly because its a specific program, its recommended its further development towards the implementation of a cost optimization algorithm for operators standard risk mitigation scenarios. Its also proposed a challenging improvement on the IAP, that is, the inclusion of the Bayes theorem methodology in its algorithm, aiming at updating the pipeline integrity evaluator expectations about the evolution of a defect taking into consideration the efficiency of the inspection techniques being used and the inspection frequency on that defect. With this provision it will be possible to evaluate inspection plans directly with IAP, using a simplified methodology, similar to that proposed in API 581 BRD. Its recommended for a future study, the application of the software which is presently being developed for the standard API RP 580, Risk Based Inspection, to pipelines for evaluating its methodology in regard to adequacy and simplicity.

Descrição Arquivo
COVER, ACKNOWLEDGEMENTS, RESUMO, ABSTRACT, SUMMARY AND LISTS  PDF
CHAPTER 1  PDF
CHAPTER 2  PDF
CHAPTER 3  PDF
CHAPTER 4  PDF
CHAPTER 5  PDF
CHAPTER 6  PDF
CHAPTER 7  PDF
CHAPTER 8  PDF
CHAPTER 9  PDF
REFERENCES AND APPENDICES  PDF
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