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Title: Bacterial attachment to metal substrate and its effects on microbiologically-influenced corrosion in transporting hydrocarbon pipelines
Category: Technical papers from the Journal of Pipeline Engineering
Downloadable: Yes 
Catalog No.: 2254s
Date of Publication: Mar 1 2012 12:00AM
Price: $25.00 US
Authors: Faisal M AlAbbas, John R Spear, Anthony Kakpovbia, Nasser M Balhareth, David L Olson, and Brajendra Mishra
Abstract: CARBON STEEL PIPELINES ARE considered the most efficient and economic method of transporting hydrocarbon products in the oil and gas industry. During oil and gas operations, pipeline networks are subjected to different corrosion deterioration mechanisms, including microbiologically-influenced corrosion (MIC) which results from accelerated deterioration caused by different microbial activities present in the hydrocarbon systems. The bacterial adhesion is a detrimental step in the MIC process. The MIC process starts with the attachment of planktonic micro-organisms that establish biofilm and in turn lead to metal deterioration. The tendency of a bacterium to adhere to the metal surface can be evaluated by using thermodynamic approaches via interaction energies. This paper covers an overview of the thermodynamics and surface-energy approaches of bacterial adhesion, the factors affecting the bacterial adhesion to the metal surface, the subsequent physical interaction between the biofilm and substratum, and its implication on the MIC in pipeline systems.
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