Some 1,401 underground diesel storage tanks were analyzed for average maximum pit depths over the years 2003 till 2016. The results showed that since the addition of biodiesel the average pit depth increased due to Microbiologically Influenced Corrosion (MIC).
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Two drilling mud samples, taken at different HDD operations. Results demonstrated the presence of microorganism populations associated with microbiologically influenced corrosion (MIC) at one of the two test locations.
High throughput corrosion measurement indicates that species type and concentration directly impact MIC rates. A corrosion model to identify a risk index for corrosion is based on amount, type, and proportion of living MIC organisms.
We have developed a quantitative polymerase chain reaction (qPCR) assay to detect and quantify sulfur oxidizing bacteria (SOB) through the amplification of the soxB subunit of the thiosulfate-oxidizing gene complex. SOB populations have been linked to the corrosion of concrete and steel.
This manuscript provides case study data from subsea crude oil pipelines that addresses the questions of how to obtain the best quality samples from pig returns for microbiological testing, and what are the relative merits of different test methodologies.
Sampling of pigging debris was performed from three multiphase pipelines that previously were exposed to microbiologically influenced corrosion (MIC) due to high abundances of sulfate reducing prokaryotes (SRP) and methanogens.
Microbiologically influenced corrosion (MIC) presents risk to operators and infrastructure in many industries. This work shows the continued potential of novel sulphidogenesis-inhibitory compounds and recent gains towards decreasing the impact of H2S production and on MIC.
Five case studies of corrosion related failures in alkanolamine acid gas removal systems including the following types of corrosion: Uniform, Pitting, Chloride Induced Crevice, Cavitation, and Microbiologically Induced Corrosion (MIC).
This paper presents new applications of Volatile Corrosion Inhibitors (VCI) inside new and/or existing out-of-service pipelines. The system utilizes a combination of soluble and volatile corrosion inhibitors that are directly applied into the pipeline.
A case study where MIC was recognized as primary cause of failure for an encased ductile iron water pipeline. The cathodically protected pipe was located within the proximity a creek crossing and had suffered from multiple failures.
This benchmarking study involved both the application of biocides to reduce biofilm formation on clean carbon steel and the application of biocide to established biofilm.
The objective of this paper is to provide a review of various models and methods that have been developed and applied by both researchers and industry professionals to better understand and predict MIC.