Model for remaining strength estimation of a corroded pipeline with interacting defects for oil and gas operations

Remaining strength estimation of corroded pipelines is a major consideration in pipeline integrity management. The loss of pipe wall thickness due to corrosion inevitably leads to a reduction in the pipeline’s strength and ability to sustain a design pressure. If corrosion defects are closely spaced...

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Autores principales:	K.U. Amandi, E.O. Diemuodeke, T.A. Briggs
Formato:	article
Lenguaje:	EN
Publicado:	Taylor & Francis Group 2019
Materias:	remaining strength estimation corroded pipelines pipeline integrity management finite element analysis interacting defects oil and gas Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/e83d35b3e4734a1eb2895b36d7149663
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spelling	oai:doaj.org-article:e83d35b3e4734a1eb2895b36d71496632021-11-04T15:51:56ZModel for remaining strength estimation of a corroded pipeline with interacting defects for oil and gas operations2331-191610.1080/23311916.2019.1663682https://doaj.org/article/e83d35b3e4734a1eb2895b36d71496632019-01-01T00:00:00Zhttp://dx.doi.org/10.1080/23311916.2019.1663682https://doaj.org/toc/2331-1916Remaining strength estimation of corroded pipelines is a major consideration in pipeline integrity management. The loss of pipe wall thickness due to corrosion inevitably leads to a reduction in the pipeline’s strength and ability to sustain a design pressure. If corrosion defects are closely spaced, the corrosion feature may interact, resulting in failure pressure lower than would be expected if the defects were evaluated as separate flaws. In such a situation, industry methods for remaining strength calculation have been shown to be conservative. This present work presents a new model that improves the current methodologies for estimating the remaining strength of a corroded pipeline with interacting defects, utilizing a finite element analysis approach in combination with curve fitting. The new model demonstrates the potentials of improved estimation of the remaining strength over the existing industry models. The implication is that the presented model has the potentials of reducing the conservatism inherent in the existing models for estimating the remaining strength of oil and gas pipelines.K.U. AmandiE.O. DiemuodekeT.A. BriggsTaylor & Francis Grouparticleremaining strength estimationcorroded pipelinespipeline integrity managementfinite element analysisinteracting defectsoil and gasEngineering (General). Civil engineering (General)TA1-2040ENCogent Engineering, Vol 6, Iss 1 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	remaining strength estimation corroded pipelines pipeline integrity management finite element analysis interacting defects oil and gas Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	remaining strength estimation corroded pipelines pipeline integrity management finite element analysis interacting defects oil and gas Engineering (General). Civil engineering (General) TA1-2040 K.U. Amandi E.O. Diemuodeke T.A. Briggs Model for remaining strength estimation of a corroded pipeline with interacting defects for oil and gas operations
description	Remaining strength estimation of corroded pipelines is a major consideration in pipeline integrity management. The loss of pipe wall thickness due to corrosion inevitably leads to a reduction in the pipeline’s strength and ability to sustain a design pressure. If corrosion defects are closely spaced, the corrosion feature may interact, resulting in failure pressure lower than would be expected if the defects were evaluated as separate flaws. In such a situation, industry methods for remaining strength calculation have been shown to be conservative. This present work presents a new model that improves the current methodologies for estimating the remaining strength of a corroded pipeline with interacting defects, utilizing a finite element analysis approach in combination with curve fitting. The new model demonstrates the potentials of improved estimation of the remaining strength over the existing industry models. The implication is that the presented model has the potentials of reducing the conservatism inherent in the existing models for estimating the remaining strength of oil and gas pipelines.
format	article
author	K.U. Amandi E.O. Diemuodeke T.A. Briggs
author_facet	K.U. Amandi E.O. Diemuodeke T.A. Briggs
author_sort	K.U. Amandi
title	Model for remaining strength estimation of a corroded pipeline with interacting defects for oil and gas operations
title_short	Model for remaining strength estimation of a corroded pipeline with interacting defects for oil and gas operations
title_full	Model for remaining strength estimation of a corroded pipeline with interacting defects for oil and gas operations
title_fullStr	Model for remaining strength estimation of a corroded pipeline with interacting defects for oil and gas operations
title_full_unstemmed	Model for remaining strength estimation of a corroded pipeline with interacting defects for oil and gas operations
title_sort	model for remaining strength estimation of a corroded pipeline with interacting defects for oil and gas operations
publisher	Taylor & Francis Group
publishDate	2019
url	https://doaj.org/article/e83d35b3e4734a1eb2895b36d7149663
work_keys_str_mv	AT kuamandi modelforremainingstrengthestimationofacorrodedpipelinewithinteractingdefectsforoilandgasoperations AT eodiemuodeke modelforremainingstrengthestimationofacorrodedpipelinewithinteractingdefectsforoilandgasoperations AT tabriggs modelforremainingstrengthestimationofacorrodedpipelinewithinteractingdefectsforoilandgasoperations
_version_	1718444684522553344

Model for remaining strength estimation of a corroded pipeline with interacting defects for oil and gas operations

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