... simultaneously giving insight into the stress seen across a range of heat exchangers in a cooling system. Information will be provided from laboratory testing as well as applications in the field. deposit heat exchanger efficiency biofilm scale All of these factors have placed more stress on the chemical...

... the lab-grown system-specific methanogenic biofilm. An enrichment culture was diluted and distributed in multiwell plates under anaerobic conditions and incubated at 45⁰C. Measures were taken to avoid evaporation from the wells during incubation, especially for the wells placed at the edge of the plates...

... installation of a potable water system in a Gulf Coast petrochemical facility. Lessons will cover materials specifications, post fabrication cleanup, and prevention of MIC. Microbiologically Influenced Corrosion Pitting Stainless Steel Heat Tint Bacteria Biofilm Failure Analysis SRB INTRODUCTION...

... Zn in the SRB broth with neutral pH after passive film damage by the SRB biofilm. galvanized steel zinc microbiologically influenced corrosion (MIC) SRB biofilm INTRODUCTION Zinc and galvanized steel are extensively used in various industrial applications. For example, zinc and its alloys...

... microbial steel biofilm INTRODUCTION Marine infrastructure, including bridges, offshore platforms, pipelines, tanks, etc., are especially susceptible to corrosion because of the high salt content of the environment. ¹ Marine-grade alloys have been developed to prolong the life...

...Abstract Within the last decade researchers have gained a significant understanding of the role of biofilms in the onset of microbial-influenced corrosion in anthropogenic water systems. Biofilms are the preferred habitat for microorganisms and in this environment they are protected from harsh...

... parameters might influence the cathodic protection current demand such as potential, temperature, dissolved oxygen content, biofilm and fouling activity, and calcareous deposit formation. The actual deepsea environment cannot be easily reproduced at laboratory scale. In this study, the influence...

... present promising prospects for many industries. Hence, the use of reliable materials resistant to corrosion in deep seawater conditions is required. In natural seawater, many parameters can influence the kinetics of corrosion such as: temperature, oxygen content, biofilm and fouling activity, flow rates...

..., scales and other solids from the pipeline surface, is an effective method to control biofilm formation. However, not all pipelines can be pigged and as such biofilm development may occur undisturbed from mechanical impacts. Regardless of the absence or presence of a mechanical cleaning program, oilfield...

...Abstract Studies in microbiologically influenced corrosion (MIC) have reported on the effects of pre-corrosion surface deposits on the localized pitting which occurs on metals. But due to the complexity and heterogeneity of these deposits, which include biofilms, it is necessary to investigate how...

...Water samples from were collected from the system and shipped to the laboratory at room temperature in anoxic conditions to cultivate biofilm representative of biofilm found in the field system. ^{6 , 7} Biofilm was cultivated in a CDC Biofilm Reactor ^† and qPCR and next...

...) by Desulfovibrio vulgaris, a sulfate reducing bacterium (SRB), against X65 carbon steel and pure copper belong to two different types of MIC. Type I MIC involves extracellular electron transfer across cell walls of sessile cells in biofilms. This type of MIC is also called extracellular electron transfer MIC...

... produce biogenic H₂S causing reservoir souring. ⁶ Fermentative microbes can also grow. ⁷ In the field environments, microbes live in synergistic biofilm consortia. ⁸ Biofilms can cause biocorrosion in many industries, especially in the oil and gas industry...

... concentrations in biofilms on internal pipe surfaces and the heterogeneous nature of pig returns further complicates the situation by making it difficult to obtain representative samples. Moreover, there is no consensus regarding the best testing method to be used. Microbial growth tests have the longest history...

...Abstract Microbiologically influenced corrosion (MIC) is caused by problematic biofilms in many industries, especially the oil and gas industry. In this work, a novel peptide (labeled as “Peptide A”) was used to enhance tetrakis hydroxymethyl phosphonium sulfate (THPS) biocide to treat...

... the tetrakis (hydroxymethyl) phosphonium sulfate (THPS) biocide against a tough field biofilm consortium on C1018 carbon steel coupons. An equi-mass D-amino acid mixture (“D-mix”) of four D-amino acids (D-methionine, D-tyrosine, D-leucine, and D-tryptophan) at a total concentration of 150 ppm (w/w) was tested...

... to influence biocide choice and applications in the field. The impact of biocides on the field microbial characteristics are described and discussed. corrosion microbial monitoring biocides APB acid producing bacteria SRB sulfate reducing bacteria biofilm biofouling bug bottles flow cell cytometer...

... biofilm. ^{11 – 13} In fact, MIC has been confirmed as the main cause for many accidents and failures. In 2000, the corrosion cracking of gas pipeline in New Mexico resulted in great loss. ^{14 , 15} In 2006, the leak of Alaska petroleum pipeline triggered a huge upheaval in the world’s...

.... For this MIC biofilm, the MIC rate gradually decreases with increasing CP potential. For another biofilm however, a different situation was observed ( Figure 7 ). First, the MIC could be stopped completely. However at a later moment, MIC could not be stopped, even at CP potentials as high as -1000 mV vs. Ag...

...The majority of the microbes in nature live in biofilm communities. ⁴ Biofilms offer many synergistic advantages to their community members, including nutrient sharing and defense against harmful chemical attacks such as biocide attacks. A biofilm is a diffusion barrier for biocides...