Corrosion Behavior of API 5L X80 Steel in the Produced Water of Onshore Oil Recovery Facilities

Oliveira, Edkarlla Sousa Dantas de; Pereira, Roseana Florentino da Costa; Melo, Ivanilda Ramos de; Lima, Maria Alice Gomes de Andrade; Filho, Severino Lepoldino Urtiga

doi:10.1590/1980-5373-mr-2016-0954

Cited by 16 publications

(9 citation statements)

References 33 publications

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“…This behavior can be attributed to the formation of corrosion pits on the surface of the coupons induced by the microorganisms present in the produced water. Images showing pitting corrosion on API 5L X80 steel coupons with up to 60 days of exposure to the biotic system have been published 15 . The high density of pits induced by the physiological activity of SRB is a very important factor in the alteration of the plasticity of the X80 steel coupons.…”

Section: Results Of the Tensile Testmentioning

confidence: 99%

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Study of the Plastic Deformation of API 5L X80 Steel Exposed to the Microbiological Action of Produced Water

et al. 2019

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The mechanical behavior of the API 5L X80 steel exposed to the produced water by the petroleum industry, besides being dependent on the intrinsic properties of the steel, is influenced by the corrosivity characteristics of the electrolyte that may be associated with the presence of microorganisms. The objective of this work was to investigate the plastic deformation of API 5L X80 steel exposed to produced water. The tests were conducted in static systems (abiotic and biotic) containing produced water after 360 days. The process of corrosion of the coupons were evaluated by topographic 3D analysis and roughness, and the mechanical behavior by tensile test and fracture analysis by scanning electron microscopy. Surface topography and roughness were modified by the interaction of the consortium of microorganisms with the substrate associated with the corrosion process. The results indicate that microorganisms induced the formation of pits which caused the coupons to lose plasticity.

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Section: Results Of the Tensile Testmentioning

confidence: 99%

“…Thereafter, they were cleaned in isopropyl alcohol and acetone, and dried with air jets, according to ASTM G1-03 standard 14 . As the present work is part of a series of studies, the methodology of weight loss and corrosion rate has already been published 15 .…”

Section: Surface Analysis By Laser Confocal Microscopymentioning

confidence: 99%

Study of the Plastic Deformation of API 5L X80 Steel Exposed to the Microbiological Action of Produced Water

et al. 2019

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“…The Most Probable Number (MPN) method was used to count the total anaerobic, acid-producing aerobic and anaerobic bacteria and sulfate reducing bacteria (SRB) 28 and the group's total aerobic and precipitating iron bacteria were quantified by the Colony Forming Unit (CFU) method 29,30 . This article is part of a series of studies, the quantification of planktonic microorganisms was published previously and it is shown in Table 2 31 .…”

Section: Microbiological Analysis Of Sessile Microorganismsmentioning

confidence: 99%

Study on Biofilm Forming Microorganisms Associated with the Biocorrosion of X80 Pipeline Steel in Produced Water from Oilfield

et al. 2021

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Biocorrosion is the main process that causes pipeline damages and losses in the oil industry. The objective of this work was to investigate the influence of biofilm forming microorganisms on the biocorrosion of X80 steel exposed in produced water through microbiological characterization, film and biofilm analysis by optical microscopy and scanning electron microscopy, weight loss and surface analysis by laser confocal microscopy. Changes in produced water after 360 days were attributed to planktonic cells, temperature conditions, contact with air, photo-oxidation, biodegradation, and seasonality. The total aerobic bacteria presented sessile cell concentration of 7.39 x 10 4 CFU/cm 2 , while the other investigated groups showed lower concentrations. The micrography of the film showed salt crystals, whereas in the biofilm microorganisms, exopolysaccharides and corrosion products were observed. Weight loss after 360 days for the abiotic and biotic systems was 0.0222 g/cm 2 and 0.3039 g/cm 2 , respectively, showing that microorganisms accentuated the corrosion of X80 steel.

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“…Em tubulações aplicadas ao transporte de petróleo e gás é muito comum a utilização de aços de alta resistência e baixa liga, como é o caso do aço API 5L X80, que apesar de possuir alta resistência a esforços, boa tenacidade e boa soldabilidade, em função de uma combinação de baixo teor de carbono e processos termomecânicos de fabricação, apresenta susceptibilidade à corrosão, requisitando o uso de métodos protetivos eficientes durante sua aplicação [4,5].…”

Section: Introductionunclassified

Desenvolvimento e caracterização de revestimentos Ni e Ni-Grafeno obtidos por eletrodeposição em aço API 5L X80

Araújo¹,

Vieira²,

Pereira

et al. 2020

Matéria (Rio J.)

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RESUMO O presente trabalho teve como objetivo desenvolver e caracterizar revestimentos nanocompósitos de Ni e Ni-Grafeno aplicados em superfície de aço API 5L X80, utilizando o processo de eletrodeposição, para obter melhores propriedades anticorrosivas. Corpos de prova de dimensões de 20x20x3 mm foram submetidos à limpeza e preparação metalográfica, para posterior deposição dos revestimentos. Para o processo de eletrodeposição foi utilizado um banho à base de níquel contendo dodecil sulfato de sódio (SDS) como surfactante. Para obtenção dos revestimentos Ni-Grafeno, foram adicionadas partículas de grafeno (0,2g/L) ao banho eletrolítico. Os eletrodepósitos obtidos foram caracterizados por Difração de Raios-X (DRX) e Microscopia Eletrônica de Varredura (MEV). A resistência à corrosão dos revestimentos foi avaliada por meio de ensaios de Polarização Linear (PL) e Espectroscopia de Impedância Eletroquímica (EIE). A inserção de grafeno ao revestimento promoveu a formação de depósitos com grãos mais refinados, e com a direção de crescimento de cristais bem definida. Foram observados depósitos com estruturas lamelares sobrepostas, associadas ao grafeno incorporado à matriz de Ni. A deposição de grafeno influenciou na orientação preferencial dos grãos durante o processo de eletrodeposição, sendo o plano (200) idenfiticado como a orientação preferencial para o nanocompósito Ni-Grafeno. O revestimento Ni-Grafeno obteve melhor desempenho anticorrosivo em comparação ao revestimento de Ni puro e ao metal base, apresentando valor de potencial de corrosão (Ecorr) mais elevado, menor valor de densidade de corrente de corrosão (icorr) e módulo de impedância (|Z|) superior.

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Corrosion Behavior of API 5L X80 Steel in the Produced Water of Onshore Oil Recovery Facilities

Cited by 16 publications

References 33 publications

Study of the Plastic Deformation of API 5L X80 Steel Exposed to the Microbiological Action of Produced Water

Study of the Plastic Deformation of API 5L X80 Steel Exposed to the Microbiological Action of Produced Water

Study on Biofilm Forming Microorganisms Associated with the Biocorrosion of X80 Pipeline Steel in Produced Water from Oilfield

Desenvolvimento e caracterização de revestimentos Ni e Ni-Grafeno obtidos por eletrodeposição em aço API 5L X80

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