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An analytical approach that can discriminate between various forms of microscopic corrosion initiation has been employed in natural gas gathering and storage facilities. Information provided by the analysis of electron microscope coupons has led toward the better understanding and diagnosis of the initial stages of internal corrosion in natural gas gathering and storage facilities.
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Cooling towers provide an ideal environment for the growth of Legionella pneumophila. We report here the results of a literature review on the biocidal activity of the oxidizing biocide bromochlorodimethylhydantoin (BCDMH) against L. pneumophila.
As part of a project to develop a database of seawater corrosion resistance including resistance to microbiologically-influenced corrosion (MIC) seawater, MIC exposure tests of five stainless steel alloys were undertaken for three and six month durations.
Biocorrosion or microbiologically influenced corrosion (MIC) is a major problem in the oil and gas industry. Biofilms are the culprits of MIC. In this work, D-amino acids were used to enhance two biocides, alkyldimethylbenzylammonium chloride (ADBAC) and tributyl tetradecyl phosphonium chloride (TTPC), to treat a field biofilm consortium on C1018 carbon steel coupons.
Corrosive biofilm formation on metal surfaces can have serious impacts. Through this proof of concept research project we established and maintained MIC biofilms for testing with various enzyme preparations. After two months of incubation in a bioreactor inoculated with a consortium of MIC microorganisms, the presence of corrosive MIC biofilms were confirmed on steel coupons.
In this study, the MIC resistance behavior of a 2205 Cu-bearing antibacterial duplex stainless steel (2205 Cu-DSS) in the presence of marine corrosive bacteria Pseudomonas aeruginosa was investigated. Electrochemistry evaluation, surface observation, corrosion product analysis were applied.
A commercial cellulose-based polymer (carboxymethyl cellulose sodium) was tested to see whether it could be utilized by an oilfield biofilm consortium including sulfate reducing bacteria.
This study demonstrates that the mechanisms of microbiologically influenced corrosion (MIC) by Desulfovibrio vulgaris, a sulfate reducing bacterium (SRB), against X65 carbon steel and pure copper belong to two different types of MIC.
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.
An oil transmission pipeline in the Eagle Ford area was being treated with 150ppm of active biocide based on a five percent water hold up but good control of the microbial population was not being maintained.
MIC is a major problem in many industrial sectors, especially in the oil and gas industry. It is widely believed that almost 20% of all corrosion costs can be attributed to MIC. The shale gas and oil industry suffers from mostly MIC rather conventional abiotic CO2/H2S corrosion. Very severe MIC with fast failures are seen in field operations with very harsh operating conditions such as high salinity and nutrient-rich water, including treated municipal wastewater that promotes microbial growth. In some situations, titanium and plastic pipes are used to cope with MIC.
A peptide (labeled as “Peptide A”) was used to enhance tetrakis hydroxymethyl phosphonium sulfate biocide to treat the corrosive sulfate reducing bacterium Desulfovibrio vulgaris and a tough field biofilm consortium on C1018 carbon steel coupons.