| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Betelu, Stéphanie
Bureau de Recherches Géologiques et Minières
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (28/28 displayed)
- 2024Optimization of experimental conditions of PFOA defluorination using DMSO/NaOH mixture
- 2024Over a year follow-up of parameters of a cemento-bentonitic filling material (CBFM) and of the corrosion potential of a carbon steel lining submerged by the CBFM, in an underground gallery cell
- 2024Long term monitoring of physical and chemical parameters of a cemento-bentonitic filling material (CBFM) and of corrosion potential ofa horizontal pipe made of carbon steel, submerged by the CBFM intoa sealed cell of underground gallery
- 2024Influence of microstructure and pore saturation in measuring corrosion rates of a carbon steel API 5L X65 in contact with cement grout in future nuclear waste disposal program
- 2023Numerical Insights into the Ability of Indirect Galvanostatic Pulse in Wenner Configuration to Locate Corroding Areas in Macrocell Corrosion of Steel in Concrete
- 2023Corrosion and inhibition of carbon steel XC38 in a standardized reconstituted geothermal water (SRGW) at 100°C and 120 bars of pressure in the absence or presence of biosourced inhibitors
- 2023Inversion of non-invasive resistivity measurements in fourelectrodes configuration for corrosion characterization in reinforced concrete samples
- 2023Corrosion control of ruthenium oxy-hydroxide coating for the development of robust pH sensors: observation and monitoring of the near field of a nuclear waste disposal site
- 2023Influence of polysulfide radicals on the mechanisms and intensity of corrosion of a carbon steel API 5L X65 in contact with cement grout in future nuclear waste disposal program ; Influence des radicaux de polysulfures sur les mécanismes et l'intensité de la corrosion d'un acier au carbone API 5L X65 en contact avec un coulis de ciment dans un futur programme de stockage de déchets nucléaires
- 2023Corrosion Current Density of API 5L X65 Carbon Steel in Contact with Natural Callovian-Oxfordian Clay Pore Water, Assessed by Various Electrochemical Methods over 180 Dayscitations
- 2023Influence of polysulfide radicals on the mechanisms and intensity of corrosion of a carbon steel API 5L X65 in contact with cement grout in future nuclear waste disposal program
- 2022Comparative study of the effectiveness of organic petro-or biosourced surfactants in inhibiting carbon steel corrosion in a standardized reconstituted geothermal water (RGW)
- 2022Assessement of electrochemical behaviour and of corrosion current density of the carbon steel API 5L X65 in contact with cement grout in a nuclear waste disposal program
- 2022Corrosion current density evolution of the carbon steel API 5L X65 in contact with natural callovo-oxfordian water assessed by various electrochemical methods
- 2022Corrosion current density evolution of the carbon steel API 5L X65 in contact with natural callovo-oxfordian water assessed by various electrochemical methods
- 2022Assessement of electrochemical behaviour and of corrosion current density of the carbon steel API 5L X65 in contact with cement grout in a nuclear waste disposal program
- 2022Comparative study of the effectiveness of organic petro-or biosourced surfactants in inhibiting carbon steel corrosion in a standardized reconstituted geothermal water (RGW)
- 2022Mechanism and kinetics of reductive dechlorination of hexachlorobutadiene and hexachloroethane by bimetallic Pd/Fe microparticles using an indirect and continuous monitoring of iron corrosion
- 2022CORROSION DENSITY OF THE CARBON STEEL API 5L X65 IN CONTACT WITH CALLOVO-OXFORDIAN CLAY PORE WATER ASSESSED BY USING VARIOUS ELECTROCHEMICAL METHODS
- 2022CORROSION DENSITY OF THE CARBON STEEL API 5L X65 IN CONTACT WITH CALLOVO-OXFORDIAN CLAY PORE WATER ASSESSED BY USING VARIOUS ELECTROCHEMICAL METHODS
- 2022Mechanisms and kinetics of carbon steel corrosion/scaling and inhibition in actual or reconstituted and treated geothermal waters
- 2021Mechanisms and kinetics of carbon steel corrosion/scaling and inhibition in actual or reconstituted and treated geothermal waters
- 2018Exploration into the ionic exchanges in the Ni/Fe Lamellar Double Hydroxide by in-situ techniques under polarization
- 2017Intercomparison of Ta and Ti solid-electrodes for pH measurements under oxic and anoxic conditions in reconstituted waters of a future nuclear waste disposal
- 2013Improved monitoring of the reductive dechlorination of PCE in polluted soils by using geophysical and electrochemical measurements carried out in columns
- 2012Mechanistic and kinetic study of pyrite (FeS2)-hydrogen (H2) interaction at 25°C using electrochemical techniques
- 2012Mechanistic study of pyrite reduction by hydrogen in NaCl 0.1 M at 90°C using electrochemical techniques
- 2012H-terminated polycrystalline boron doped diamond electrode for geochemical sensing into underground components of nuclear repositories
Places of action
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conferencepaper
Mechanisms and kinetics of carbon steel corrosion/scaling and inhibition in actual or reconstituted and treated geothermal waters
Abstract
Most of the geothermal installations in France are exploiting low‐enthalpy geothermal waters of the Dogger aquifer in the Paris Basin. The geothermal operations are made up of two wells (production-injection, both are about 1,800 m deep), and of surface installations. The operating principle is simple: the waters flow assisted through the carbon steel XC38 (CSXC38) casings to the surface and, after flowing through heat‐exchangers, are re‐injected into the same aquifer, a few hundred meters farther away. Initially, field experience has shown that, in both production and injection well casings, there is corrosion, scaling and, in some cases, partial clogging. The geothermal waters, exploited by 50 doublets, are highly mineralized and contain dissolved gases, including H2S and CO2. The main water characteristics are: Anaerobic conditions in which temperatures range from 47-85 °C, pHs from 6.1-6.4, total dissolved solids (TDS) from 6-35 g/L (ionic strength, 0.1‐0.6 M) much of which is Cl‐, [H2S/HS‐ ] from 5-100 mg/L, [SO4 2‐] from 300-1200 mg/L, [CO2/HCO3‐] from 250-600 mg/L. The concentrations of TDS, [H2S/HS‐] and [CO2/HCO3‐] vary from place to place. H2S/HS‐ fluctuates versus time and exploitation flowrate. These characteristics classify them among the foremost corrosive natural waters for carbon steel. Since 1989, the doublets are treated with various petrosourced organic corrosion inhibitors to prevent corrosion-scaling. Currently, there is no more untreated fluids to use them for testing the effectiveness of new inhibitors, whereas there is a great need to improve the geothermal exploitations. Thanks to physicochemical analyses (from 15 wells from the Val de Marne, south-est of Paris) and modeling by PhreeqC®, a standardized reconstituted geothermal water (SRGW) has been realized and approved (tested in stability and composition as a function of time) to be used commonly as corrosive medium for the inhibitors selection. The mechanisms and corrosion kinetics of CSXC38, when immersed at this RGW without inhibitor, acquired electrochemically. The electrochemical behavior of CSXC38, when immersed in RGW treated by a defined concentration of an inhibitor enables the comparison without inhibitor, and then the inhibition efficacy. Several concentrations of the same inhibitor are performed. During the last 5 years, BRGM tested over 30 individual molecules and qualified quite 15 new petrosourced and 5 new biosourced corrosion inhibitors, some of them are now the most commonly used.