Case histories of external microbiologically influenced corrosion
- Transcontinental Gas Pipe Line Corp., Houston, TX (United States)
External microbiologically influenced corrosion (MIC) is a serious dilemma in the pipeline industry. Even today, it has not been recognized as such because it has been primarily mistaken for galvanic corrosion. Due to the type of coating materials used in the past, the cleaning process or lack of it, and application methods used, all coating systems have the propensity to develop defects and pinholes where disbondment and this type of microbial corrosion could occur. In addition, the pipeline may or may not have had cathodic protection initially and/or consistently applied. Given these factors and the interaction of bacteria from the soil, moisture availability, degree of cathodic protection, and temperature of the pipeline, this paper will discuss the role that microbes play in the disbondment process, thus resulting in corrosion of an underground pipeline. Several case histories, laboratory testing results, and field findings will be presented.
- OSTI ID:
- 460702
- Report Number(s):
- CONF-970146-; ISBN 1-890277-01-0; TRN: IM9718%%284
- Resource Relation:
- Conference: Energy week `97 conference & exhibition, Houston, TX (United States), 28-30 Jan 1997; Other Information: PBD: 1997; Related Information: Is Part Of 8. annual international energy week conference and exhibition: Conference papers. Book 2: Pipelines, terminals and storage; Processing and refining; PB: 284 p.
- Country of Publication:
- United States
- Language:
- English
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