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Premature Failure of Submarine Well Fluid Lines: A Case Study.
- Source :
- Journal of Failure Analysis & Prevention; Apr2021, Vol. 21 Issue 2, p363-369, 7p
- Publication Year :
- 2021
-
Abstract
- This paper deals with premature failure of two well fluid lines of an offshore asset. The well fluid lines leaked due to internal corrosion. In the internal surface of the failed pipes, longitudinal groove and holes were observed at the 6 o'clock position. The superficial liquid velocity of both the lines was significantly low which resulted in settling, deposition and accumulation of suspended solids, and biomass as a result of proliferation of bacterial colonies. These conditions made the site prone to microbial-induced corrosion and under deposit corrosion. Apart from low velocity, lack of required cleaning pigging, inadequate dosing of corrosion inhibitor and bactericide caused premature failure of the pipes. The details of tests carried out with their results and suitable recommendations have been provided in this paper. [ABSTRACT FROM AUTHOR]
- Subjects :
- SUSPENDED solids
BACTERIAL colonies
FLUIDS
SUBMARINE cables
CASE studies
BACTERICIDES
Subjects
Details
- Language :
- English
- ISSN :
- 15477029
- Volume :
- 21
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- Journal of Failure Analysis & Prevention
- Publication Type :
- Academic Journal
- Accession number :
- 149631038
- Full Text :
- https://doi.org/10.1007/s11668-020-01051-0