RESEARCH ARTICLE


Failure Predictive Models for Pipelines Through Neutron Diffraction- Based Stress Assessment Tools



P. Genta1, M. Rogante*, 2
1 Saudi Aramco, Pipelines Specialist Unit, Dhahran 31311, P. O. Box 9484, Saudi Arabia
2 Rogante Engineering Office, Contrada San Michele, 61, P. O. Box 189, 62012 Civitanova Marche, Italy


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© 2009 Genta and Rogante;

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Rogante Engineering Office, Contrada San Michele, 61, P. O. Box 189, 62012 Civitanova Marche, Italy; E-mail: main@roganteengineering.it


Abstract

This paper discusses the current problems of assessing the pipeline integrity from an identification of the causal factors associated to various pipeline failure mechanisms and damages, such as corrosion, SCC, buckling, soil movement, and fatigue. The paper explains, furthermore, how emerging applications of Neutron Diffraction and Small Angle Neutron Scattering techniques can be carried out to assess residual stress and microstructural characterization in pipelines. The benefits of the mentioned techniques are also discussed, in determining the pipeline real conditions and building forecast fracture models, providing end-users with essential support to effectively manage pipeline rehabilitation and maintenance plans.