SCORCH JIP: Examination and testing of severely-corroded mooring chains from West Africa

Emmanuel Fontaine, Andrew Potts, Kai Tung Ma, Alberto Arredondo, Vicinay Cadenas, Robert Elrich Melchers

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

27 Citations (Scopus)

Abstract

The SCORCH JIP conducted a study on corroded/pitted chain links that were recovered from a floating storage offloading system based in West Africa. The large pits observed, sometimes leading to reduction in diameter of the order of 35%, most likely can be attributed to microbiologically influenced corrosion. The effective breaking loads were ∼ 80-90% of the catalog minimum breaking load despite the large reduction in cross- sectional area. The corrosion rates deduced from the observations are significantly higher than the values recommended in existing codes and Class Rules. The long-term corrosion rate appears to follow a Frechet distribution instead of a Gumbel distribution in agreement with the latest findings in the field of corrosion. This is an abstract of a paper presented at the Offshore Technology Conference 2012 (Houston, TX 4/30/2012-5/3/2012).

Original languageEnglish
Title of host publicationOffshore Technology Conference 2012, OTC 2012
Pages460-468
Number of pages9
Volume1
Publication statusPublished - 2012
Externally publishedYes
EventOffshore Technology Conference 2012, OTC 2012 - Houston, United States of America
Duration: 30 Apr 20123 May 2012

Conference

ConferenceOffshore Technology Conference 2012, OTC 2012
CountryUnited States of America
CityHouston
Period30/04/123/05/12

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