Failure of crude oil pipeline due to microbiologically induced corrosion

Autor:	M M Al-Gahtani, Said S. Al-Jaroudi, Anwar Ul-Hamid
Rok vydání:	2011
Předmět:	Corrosion inhibitor chemistry.chemical_compound Underground pipeline chemistry Scanning electron microscope General Chemical Engineering Pipeline (computing) Metallurgy Environmental science General Materials Science General Chemistry Crude oil Corrosion
Zdroj:	Corrosion Engineering, Science and Technology. 46:568-579
ISSN:	1743-2782 1478-422X
DOI:	10.1179/147842210x12695149033819
Popis:	A 25·5 km long and 28 in. diameter underground pipeline used for transporting wet sour Arab Light grade crude oil failed after 3 years of service. The pipeline was operated at 40% of permissible flow velocity and capacity and protected under a corrosion inhibitor programme. The failure occurred due to corrosion of the lower surface of the pipeline resulting in pinholes within a period of one month. Eight corrosion damaged areas were detected over the entire length of the pipeline. Ultrasonic non-destructive inspection and close potential surveys were conducted on the failed pipeline. Various sections of the corrosion products were metallurgically evaluated using scanning electron microscopy coupled with energy dispersive X-ray spectroscopy. The corrosion product was identified using photometric and potentiometric analysis combined with X-ray diffraction. Crude oil and water samples obtained from the pipeline were also analysed. The material of the pipeline was identified as AISI grade C1018. Ultra...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b68e1b8bec06e06c8b43fb14decdb899 https://doi.org/10.1179/147842210x12695149033819 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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