Volume 19 Issue 1

S.No.	Article Title & Authors (Volume 19, Issue 1, February - 2026)	Page Nos.	Status
1.	Full-Scale Field Study of the Performance of Polyamide 12 Onshore Oil Pipelines Italo Martins Gomes, Antonio Henrique Monteiro, Érica Gervasoni Chaves, Sylvia Correa dos Santos Teixeira, Nara Guidacci Berry, Marcelo José Gomes da Silva International Journal of Advances in Engineering & Technology (IJAET), Volume 19 Issue 1, pp. 1-12, February 2026. ABSTRACT Oil and gas industries are frequently exposed to corrosion challenges in their equipment given the harsh composition of the fluids they usually are exposed to. In order to mitigate such problems, non-metallic materials have been used as a corrosion-resistant alternative to steel. This work aims to experimentally evaluate the use of an unplasticized PA12 (PA-U12) as an alternative to the API 5L steel grade commonly used in onshore oil pipelines, yet more susceptible to corrosion. Test specimens were machined from pipelines operating in onshore fields, and their properties were evaluated. Mechanical properties of PA-U12 were largely preserved even after 8000h of exposure to produced water (pH~7) with hydrocarbon fractions at temperatures ranging from 40 to 80 °C. Analysis of Variance (ANOVA) confirmed that both temperature and position within sample thickness (innermost and outermost surfaces) are statistically significant input factors, however with a limited range of changes and no interaction effect between temperature and position within the thickness. Overall, no significant changes have been observed in mechanical properties that would compromise pipe performance based on the limits established by ISO 23936-1 and API RP17B for small-scale analysis. Therefore, it is possible to conclude that PA12 maintained satisfactory stability for this application in a moderately aggressive environment, compliance with the required mechanical performance defined in widely used international reference documents and criteria.	1-12	Online