Assessment of weld thickness loss in offshore pipelines using computed radiography and computational modeling.

Correa, S C A; Souza, E M; Oliveira, D F; Silva, A X; Lopes, R T; Marinho, C; Camerini, C S

Correa, S C A; Souza, E M; Oliveira, D F; Silva, A X; Lopes, R T; Marinho, C; Camerini, C S.

Afiliação

Correa SC; Programa de Engenharia Nuclear/COPPE, Universidade Federal do Rio de Janeiro, Ilha do Fundão, Rio de Janeiro, RJ, Brasil. scorrea@con.ufrj.br

Appl Radiat Isot ; 67(10): 1824-8, 2009 Oct.

Article em En | MEDLINE | ID: mdl-19540128

RESUMO

In order to guarantee the structural integrity of oil plants it is crucial to monitor the amount of weld thickness loss in offshore pipelines. However, in spite of its relevance, this parameter is very difficult to determine, due to both the large diameter of most pipes and the complexity of the multi-variable system involved. In this study, a computational modeling based on Monte Carlo MCNPX code is combined with computed radiography to estimate the weld thickness loss in large-diameter offshore pipelines. Results show that computational modeling is a powerful tool to estimate intensity variations in radiographic images generated by weld thickness variations, and it can be combined with computed radiography to assess weld thickness loss in offshore and subsea pipelines.

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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Tipo de estudo: Prognostic_studies Idioma: En Revista: Appl Radiat Isot Assunto da revista: MEDICINA NUCLEAR / SAUDE AMBIENTAL Ano de publicação: 2009 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido

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