Evaluation of a biocide effect upon microbiologically influenced corrosion of mild steel

Gayosso, M. J. Hernández; Olivares, Gerardo Zavala; Ruiz‐Ordaz, Nora; Esquivel, Rafael Garcia

doi:10.1002/maco.200503867

Cited by 16 publications

(7 citation statements)

References 5 publications

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“…The corrosion induced by C. celerecrescens seems to be low, compared to that reported for D. vietnamensis, which was isolated from the same gas pipeline [9]. However, the presence of C. celerecrescens should be considered as one of the factors affecting the corrosion processes occurring at the inner side of the gas pipeline.…”

Section: Discussionmentioning

confidence: 69%

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Corrosion of API XL 52 steel in presence of Clostridium celerecrescens

Monroy

Gayosso

Ruiz‐Ordaz

et al. 2011

Materials & Corrosion

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During the characterization of sediments formed in pipelines transporting hydrocarbons, the knowledge of the microbiological diversity becomes very interesting, especially when it is related to microbiologically influenced corrosion (MIC). The presence of microorganisms is considered as one of the factors that affect the corrosion processes occurring at the pipeline; therefore, their corrosiveness must be determined. In this way, the identification of new species affecting the MIC processes is still considered relevant. In this work, the effect of Clostridium celerecrescens upon the corrosion of API KL 52 steel was evaluated. This microorganism was isolated and identified from the sediments collected during the inner cleaning procedures of a gas pipeline. The polarization resistance (PR) and electrochemical impedance spectroscopy (EIS) techniques were considered to estimate the microorganism behavior during the corrosion process. The results were complemented with a metal surface analysis, using a scanning electron microscope (SEM). The resistance values induced by the presence of the microorganisms clearly indicated that C. celerecrescens has an effect on the corrosion process occurring at the API XL 52 steel surface.

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Section: Discussionmentioning

confidence: 69%

“…This species has been identified previously in the gas pipeline, along with some SRB, such as Desulfovibrio vietnamensis and Clostridium sporogenes [9].…”

Section: Resultsmentioning

confidence: 99%

Corrosion of API XL 52 steel in presence of Clostridium celerecrescens

Monroy

Gayosso

Ruiz‐Ordaz

et al. 2011

Materials & Corrosion

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“…They demonstrated that, 50 ppm dose of glutaraldehyde suppressed sulfide production for 143 h in planktonic cells, whereas a higher dose of GA in a biofilm reactor had less effect. Hernandez et al 28) applied relatively high biocide concentration (200 ppm GA) to eliminate both of the sessile and planktonic microorganisms and decrease corrosion rates of steel.…”

Section: Discussionmentioning

confidence: 99%

Biocorrosion of Low Alloy Steel by Desulfotomaculum sp. and Effect of Biocides on Corrosion Control

2007

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“…This result was in accordance with the LIVE/DEAD staining results ( Figure S6-1 and Figure S6-2). The loss in viability could have shifted the reaction on the biofilm/metal interface from biocatalytic to chemical (Hernández Gayosso et al 2005. The biofilm recovered to 90% of baseline activity in approximately one month after each FNA treatment.…”

Section: Reactor Performancementioning

confidence: 99%

“…The diffusional effect disappeared 12 hours after the 1st FNA treatment (Day 244.5), so the results were fitted with the circuit shown in Figure 6-5g, where the Warburg element (Wo) is replaced with a constant phase element (Qf) and a paralleled resistance (Rf). After the FNA treatments, the dead cells on the surface of the biofilm were likely sloughed from the coupon surface with vortexing, leading to a decrement in biofilm thickness, also eliminating the diffusion control effect (Hernández Gayosso et al 2005). The deviation of the double-layer capacitance from an ideal capacity (nf) was in a relatively steady state of approximately 0.82 up to Day 248, after which nf dropped gradually to 0.5094 at Day 270, indicating that the electrode surface was becoming rough and porous (Sheng et al 2007).…”

Section: Fna's Effect On Electrochemical Properties Of the Carbon Stementioning

confidence: 99%

Understanding and control of microbially influenced corrosion in simulated oilfield seawater injection systems

Zhong¹

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Microbially influenced corrosion (MIC) is the main cause of the localized corrosion, causing pipeline system leakages during the water injection process in secondary oil recovery. Biocides are often dosed to inhibit and kill the microbes which cause MIC. However, the MIC development in the early stages of water injection process was barely covered, and the demand for more innovative, effective and cost-efficient solutions to deal with MIC is still high. The overall objective of this thesis is to gain a better understanding of MIC process in secondary oil recovery and develop an effective MIC controlling strategy using free nitrous acid (FNA i.e. HNO2), which could be applied in practical oilfield operation either alone or combined with other corrosion inhibitory chemicals. A continuously-fed biofilm reactor simulating the water injection process was operated to allow biofilm to develop on the carbon steel coupons to study the MIC development. The development of MIC process was monitored for 5 months with open circuit potential (OCP), electrochemical impedance spectroscopy (EIS), linear polarization resistance (LPR), scanning electron microscopy (SEM), 3D optical profiling and weight-loss measurement. MIC development was found to comprise 3 phases: Initialization, Transition, and Stabilization. The Initialization phase involved the formation of the corrosion product layer and the initial attachment of the sessile microbes on the metal surface. In the Transition phase, the MIC process gradually shifted from charge-transfer-controlled reaction to diffusion-controlled reaction. The Stabilization phase featured mature and compact biofilm on the metal surface, and the general corrosion rate decreased due to the diffusional effect, while the pitting corrosion rate was enhanced at a lower carbon source level, which supported the mechanism of direct electron uptake from the metal surface by SRB. Intermittent dosages of FNA, which was previously found to be a biocide, were applied to a simulated water injection system containing carbon steel coupons with mature biofilm, to study its effect on MIC mitigation. In each treatment, 0.49 mg-N/L FNA was dosed by using 200 mg-N/L nitrite at pH 6 for 24 h. The corrosion properties were monitored by OCP, EIS, LPR, 3D optical profiling, and weight-loss measurement. The biofilm viability was monitored by measuring cellular ATP level. The general corrosion rate (calculated by weight-loss measurement) was decreased by up to 31%, which was supported by LPR tests and reduced ATP levels of the corrosion-inducing biofilm. The 3D optical profiling results showed that FNA decreased the average pitting corrosion rate by 59%, with 2 intermittent treatments with an 82-day interval over 304 days. Intermittent dosing of FNA has strong potential to be an effective and efficient strategy for controlling MIC in oil recovery infrastructure. II Imidazoline and its derivatives are widely used corrosion inhibitors for the protection of oilfield pipelines. As a typical imidazoline derivative, N-b-hydroxye...

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Evaluation of a biocide effect upon microbiologically influenced corrosion of mild steel

Cited by 16 publications

References 5 publications

Corrosion of API XL 52 steel in presence of Clostridium celerecrescens

Corrosion of API XL 52 steel in presence of Clostridium celerecrescens

Biocorrosion of Low Alloy Steel by Desulfotomaculum sp. and Effect of Biocides on Corrosion Control

Understanding and control of microbially influenced corrosion in simulated oilfield seawater injection systems

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