Microbiological Corrosion in Waterfloods

Sharpley, J. M.

doi:10.3323/jcorr1954.11.3_114

Cited by 2 publications

(6 citation statements)

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“…In consequence, the oxygen from sulfates is consumed to oxidize iron, which gradually changes to Fe 2 O 3 40 As mentioned earlier, corrosive changes are one of the main causes of destruction of materials used in dentistry in the oral cavity. These changes reduce the functional properties of the material and its mechanical strength, and are the cause of the release of ions into the environment, including the oral cavity environment.…”

Section: Discussionmentioning

confidence: 99%

Biocorrosion of 316LV steel used in oral cavity due to Desulfotomaculum nigrificans bacteria

et al. 2015

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Corrosion processes of metallic biomaterials in the oral cavity pose a significant limitation to the life and reliable functioning of dental materials. In this article, the influence of environment bacteria Desulfotomaculum nigrificans sulfate reducing bacteria on the corrosion processes of 316LV steel was assessed. After 14 and 28 days of contact of the material with the bacterial environment, the surfaces of the tested biomaterial were observed by means of confocal scanning laser microscopy, and their chemical composition was studied using X-Ray Photoelectron Spectrometry and a scanning transmission electron microscopy. Corrosive changes, the presence of sulfur (with atomic concentration of 0.5%) on the surface of the biomaterial and the presence of a thin oxide layer (thickness of ∼20 nm) under the surface of the steel were observed. This corrosion layer with significant size reduction of grains was characterized by an increased amount of oxygen (18% mas., p < 0.001) in comparison to untreated 316LV steel (where oxygen concentration - 10% mas.). Image analysis conducted using APHELION software indicated that corrosion pits took up ∼2.8% of the total tested surface. The greatest number of corrosion pits had a surface area within the range of 100-200 μm . © 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 222-229, 2017.

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Section: Discussionmentioning

confidence: 99%

Biocorrosion of 316LV steel used in oral cavity due to Desulfotomaculum nigrificans bacteria

et al. 2015

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“…It has long been recognised that various microorganisms flourish in the aboveground components of oilfield injection water systems and that such proliferation may result in serious operational problems, including corrosion of equipment, plugging of filters and oil-bearing strata, souring of gas and oil, and safety risks (Wolfson, 1960;Sharpley, 1961a;Carlson et al, 1961;Myers & Slabyi, 1962;Crouch, 1982). The primary microbial problems encountered in oilfield injection waters are caused by SRB, iron bacteria, slime-forming bacteria and plankton.…”

Section: (I) Legs/storage Cells Of Offshore Platformsmentioning

confidence: 97%

“…Although more commonly associated with corrosion of water distribution pipes (Tiller, 1982), they have been detected in some oilfield water systems. One mechanism postulates that in areas of low oxygen concentration iron bacteria convert ferrous to ferric iron, which then precipitates as ferric hydroxide (Sharpley, 1961a). This material effectively shields the surface from oxygen, resulting in a differential aeration cell and increased corrosion.…”

Section: Effects On Corrosionmentioning

confidence: 98%

“…Iron bacteria have also been reported to cause a number of problems in oilfield water handling systems (Sharpley, 1961a). Most of these incidences have occurred in freshwater systems, although iron bacteria occasionally occur in brines (Sharpley, 1961b).…”

Section: Bacterial Problemsmentioning

confidence: 98%

“…Numerous papers have been published implicating SRB in corrosion problems within water injection systems (Sharpley, 1961a;Amstutz, 1978;Hamilton & Sanders, 1984a, 1984b. This, however, is not the only consequence of SRB activity, for the sulphide produced may react with solubilised iron to form FeS.…”

Section: Bacterial Problemsmentioning

confidence: 99%

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