A5028471075- CO2 Sequestration and Geologic Interactions
- Hydrocarbon exploration and reservoir analysis
- Groundwater flow and contamination studies
- Hydraulic Fracturing and Reservoir Analysis
- Clay minerals and soil interactions
- Radioactive element chemistry and processing
- Geochemistry and Geologic Mapping
- Soil and Unsaturated Flow
- Enhanced Oil Recovery Techniques
- Drilling and Well Engineering
- Geological and Geochemical Analysis
- Geophysical and Geoelectrical Methods
- Rock Mechanics and Modeling
- Radioactive contamination and transfer
- Seismic Imaging and Inversion Techniques
- Concrete and Cement Materials Research
- Methane Hydrates and Related Phenomena
- Paleontology and Stratigraphy of Fossils
- Corrosion Behavior and Inhibition
- Reservoir Engineering and Simulation Methods
- Geological Modeling and Analysis
- NMR spectroscopy and applications
- Ion-surface interactions and analysis
- Nuclear Physics and Applications
- Microbial Fuel Cells and Bioremediation
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2011-2022
CEA Cadarache
2010-2022
Direction de la Recherche Technologique
2010-2021
Softeam Cadextan
2012-2019
Clinique Victor Hugo
2019
IFP Énergies nouvelles
2002-2018
Direction des énergies
2009-2018
CEA Grenoble
2015
Institut Français
1998-2010
Joint Research Centre
2002-2008
Geological repositories subject to the injection of large amounts anthropogenic carbon dioxide will undergo chemical and mechanical instabilities for which there are currently little experimental data. This study reports on experiments where low high (8 MPa) aqueous fluids were injected into natural rock samples. The performed in flow‐through triaxial cells, vertical confining stresses, temperature, pressure composition fluid separately controlled monitored. axial strains two limestones one...
The capture and geological CO2 storage (CCGS) in deep aqui fers, depleted oil gas fields coal seams appears to be one of the main solutions reduce greenhouse gases release atmosphere (IPCC, 2005). geochemical reactivity between mixed fluids (supercritical brine) clayey caprock formations under physicochemical conditions remain largely under-investigated. is characterized by inherent properties notably supported a high content such as low reactivity, permeability elasticity/plasticity. This...
The osmotic character of long-range interlamellar swelling in smectite clays is widely accepted and has been evidenced the interlayer space by X-ray diffraction. Such a behavior mesopores was not experimentally confirmed until determination mesopore size distribution Na−montmorillonite prepared from MX80 bentonite using thermoporometry experiments. This here for other montmorillonite samples where cations are alkaline Ca2+ cations. nature cation found as strongly influencing mesopores. These...
The key feature of swelling clays such as montmorillonite, in contrast with the nonswelling clays, is their ability to adsorb water interlayer space. This interacts cations or silicate layer surface inside space, both. However, no direct experimental technique offers possibility determine separately these two contributions. In order hydration energy for alkali cations, we use a combination electrostatic calculations and measurements immersion heats clays. results show that Li+ Na+ are...
Site selection is a fundamental step, which can condition the success of CO2 geological storage. A storage has to gather several targets, be expressed through list criteria. In proposed site methodology, these criteria classified into "killer criteria" and "site-qualification criteria", whose combinations allow identifying potential sites most appropriate one(s). This multicriteria methodology applied on PICOREF study area, located in Paris Basin, site(s) deep saline aquifers are investigated.
The objective of the "Géocarbone-Intégrité" project (2005-2008) was to develop a methodology assess integrity caprock involved in geological storage CO<sub>2<sub/>. A specific work package (WP5) dedicated integration (1) phenomenology describing evolution system with focus on mechanisms occurring and at interface caprock, (2) data obtained from investigation petrographical, geomechanical, geochemical properties, before after reaction CO<sub>2<sub/>-rich solutions, performed other packages...
The current projects for the disposal of high-level radioactive waste rely on underground burial and confinement by metallic envelopes that are susceptible to corrosion processes. impact microbial activity must be fully clarified in order provide biological parameters predictive reactive transport models. This study investigates hydrogenotrophic iron-reducing bacteria (Shewanella oneidensis strain MR-1) rate carbon steel under simulated geological conditions using a geochemical approach. It...
The application of scanning electron microscopy (SEM) and secondary ion mass spectrometry (SIMS) for characterization mixed plutonium uranium particles from nuclear weapons material is presented. originated the so-called Thule accident in Greenland 1968. Morphological properties have been studied by SEM two groups were identified: a "popcorn" structure spongy structure. same technique, coupled with an energy-dispersive X-ray (EDX) spectrometer, showed heterogeneous composition Pu U surface...
Natural or engineered clay-rich materials are ubiquitous when it comes to achieving sequestration of acid gas, confinement pollutants high level radioactive waste (HLRW), and trapping hydrocarbon oil gas in geological settings. The sequestration, confinement, functions rely on properties such as low permeability, sorption ion exchange capacity, and, some cases, swelling abilities. Clay-rich contain specific clay minerals possessing these due the small size tortuosity pores well very surface...
Summary A survey of DSDP black shales from the North Atlantic has been carried out in order to study evolution Cretaceous palaeoenvironments region. The involved a reappraisal biostratigraphy formations and considered accumulation rate, mineralogical organic geochemical data. Special attention was paid distinguishing between redeposited autochthonous sediments. Three main phases deposition are recognized which separated by two unconformities: Blake-Bahama phase (Valanginian-early Aptian...
Une étude chronostratigraphique, sédimentologique et géochimique des black-shales recoupés par les forages DSDP dans l'Atlantique Nord, a été menée avec la double préoccupation de reconstituer, d'une part milieux dépôt l'étude séquences élémentaires d'identifier, d'autre part, unités stratigraphiques majeures discontinuités qui séparent. Les types séries illustrées ce texte à titre d'exemple sont suivantes : I. Séries matière organique marine conservée. - faciès autochtones resédimentés...