jean Michel MATRAY
Présentation
Age 63, French nationality
Profession
Hydrogeologist and hydrogeochemist - Current position IRSN/PSE-ENV/SPDR/LETIS
Grade
Doctor from the University of Paris-Sud
Current function
Engineer - Researcher and Senior Expert in Transfer of Radionuclides in the Geosphere
Laboratory > IRSN/PRP-DGE/SRTG/LETIS
The scientific work of Jean-Michel Matray focuses on the transfer of solutes and natural analogues of radionuclides, in mainly deep continental hydrosystems. It validates and develops conceptual models of pollutant transfer in the host geological layers of future repositories and their relationship with the surrounding aquifers.
ORCID : 0000-0002-3328-1027
Professional experience
- 1985-1990: Elf (èTotal) Thesis + Post-Doctorate - Diagenesis of oil reservoirs (Paris Basin, Guinea Gulf, North Sea…);
- 1990-1993: BRGM/IMRG Design Engineer - Geothermal;
- 1993-1996: BRGM/DR Engineer/Researcher - Fluid and solute transfers in sedimentary basins;
- 1996-2002: BRGM/ANTEA/STO Study engineer - Hydrogeology and Geochemistry of geological disposals
- 2002-2022: IRSN Researcher in transfers and Senior Expert since 2015,
Themes explored / Research activities
A) Transfer of natural analogues and radionuclides in the continental environment:
- Transfers in aquitards (clay rocks COx, OPA, Toar…). Experimental approach and coupled modeling for validation of the performance calculations of a geological repository. Mobility modeling of natural tracers (Cl, Cs, Sr) analogues of radionuclides (RN);
- Participation in the ANR TAPPS project on transfers in the sedimentary pile located near the project for an industrial geological storage center (Cigeo) for high and medium level long-lived radioactive waste (HA-MAVL).
B) Studies and research on potential radioactive waste storage sites
- Preliminary geological reconnaissance of the Andra sites in Gard, Vienne and the East with the performance of numerous geochemical studies and summaries on the 3 sites;
- Scientific project management for the excavation of access shafts at Andra's Meuse/Haute-Marne Laboratory;
- Study of the geothermal potential at Cigeo;
C) Transfers in deep reservoirs and aquifers:
- Diagenesis of sedimentary basin reservoirs (Paris, Pannonian, North Sea, Gulf of Guinea);
- Validation of the flow model of the geothermal Dogger of the center of the Paris Basin (BP);
- Research on low enthalpy geothermal energy at BP with participation in two European research programs.
D) Studies in underground research laboratories in indurated clay rock
- Ttransfer properties of clayey rocks studied at Underground Reserach Laboratories (Tournemire and Mont Terri ) as analogues for assessing the Gigeo project of HL-ILLL disposal site in France.
-Impact of temperature on heat, fluid and solute transfers in clayrocks.
- Development of a software for the pre-processing and analysis of time series measured by sensors in the URLs.
Teaching / scientific animation
- Universities of Paris-Sud, Aix-Marseille, Poitiers and INP Toulouse;
- Supervision of PhD theses (6 including one in progress), post-doctoral students (1) and M2 trainees (8);
- Co-editor and reviewer for journals: Applied Geochemistry, Geofluids
- Participant and organizer of workshops (Tournemire (3), Mont Terri(15), WRI(1)), Fontenany-aux-Roses on-line(1).
Publications
- approx. 57 references (34 publications, with average IF5years 2.9 including 7 as 1st author; 22 communication in conference; 1 conference poster; 8 book or thesis chapters), 12 invitations to conferences (sometimes co-chairman), member of the jury of 6 PhD theses
Publications
Publications
        
            Assessing the performances of engineered barrier systems and rock masses from large scale in situ tests at the Tournemire underground research laboratoryInternational Conference on Nuclear Safety, EUROSAFE 2019, 2019, COLOGNE, Germany. pp.133-143 
                 Communication dans un congrès
                    
        
        
            
                
                    hal-03513530
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            Methodology for qualifying monitoring componentsModern2020 2nd International Conference about Monitoring in Geological Disposal of Radioactive Waste, MODERN2020, Apr 2019, PARIS, France 
                 Communication dans un congrès
                    
        
        
            
                
                    hal-02866938
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            Investigation of Sc2O3 Based All-Solid-State EIS Structure for AlGaN/GaN HEMT pH sensor2019 IEEE SENSORS, Oct 2019, Montreal, Canada. pp.8956762, ⟨10.1109/SENSORS43011.2019.8956762⟩ 
                 Communication dans un congrès
                    
        
        
            
                
                    hal-02870737
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            Behaviour of radionuclides in continental hydrosystems following a severe accident: theoretical, experimental and modelling approachesEuropeen Review Meeting on Severe Accident Research, ERMSAR, May 2017, Varsaw, Poland 
                 Communication dans un congrès
                    
        
        
            
                
                    hal-02866937
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            Acquisition of anion profiles and diffusion coefficients in the Opalinus Clay at the Mont Terri rock laboratory (Switzerland)15TH WATER-ROCK INTERACTION INTERNATIONAL SYMPOSIUM, WRI-15, Oct 2016, Evora, Portugal. pp.57-60, ⟨10.1016/j.proeps.2016.12.029⟩ 
                 Communication dans un congrès
                    
        
        
            
                
                    hal-01765444
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            Comparative study of methods for estimating a permeability profile across the Opalinus Clay at the Mont Terri rock laboratory (DB Experiment)25ème Réunion des Sciences de la Terre, RST 2016, Oct 2016, Caen, France 
                 Communication dans un congrès
                    
        
        
            
                
                    hal-02869294
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            Water-solid interactions at the pore scaleTRePro III – Workshop on Modelling of Coupled Transport Reaction Processes, Mar 2014, Karlsruhe, Germany 
                 Communication dans un congrès
                    
        
        
            
                
                    insu-01293245
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            Hydro-Mechanical Response of the Tournemire Argillite to the Underground Openings Excavation: Unsaturated Zones and Mine-by-test ExperimentGeoProc 2008, 3rd International Conference on Coupled T-H-M-C processes in geo-systems: fundamental, modelling, experiments & applications, Jun 2008, Lille, France. pp.647-656, ⟨10.1002/9781118623565.ch68⟩ 
                 Communication dans un congrès
                    
        
        
            
                
                    hal-05094556
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            Modeling Cl- concentration and δ37 Cl profiles in porewater across a 250m-thick inducated argillite at the Tournemire URL (France)14th International Symposium on Water-Rock Interaction, WRI 14, Jun 2013, Avignon, France. pp.471-474, ⟨10.1016/j.proeps.2013.03.158⟩ 
                 Communication dans un congrès
                    
        
        
            
                
                    hal-00817819
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            Diagenetic carbonates in clay-rich marine formationsInternational meeting "Clays in Natural and Engineered Barriers for Radioactive Waste Confinement", Oct 2012, Montpellier, France 
                 Communication dans un congrès
                    
        
        
            
                
                    hal-00701814
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            Experimental solubility of silica in nano-pores20th annual V.M. Goldschmidt Conference, Jun 2012, Montréal, Canada 
                 Communication dans un congrès
                    
        
        
            
                
                    insu-01291793
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            Statistical analyses of pressure signals, hydrogeologic characterization and evolution of Excavation Damaged Zone (claystone sites of Mont Terri and Tournemire)MAMERN11: 4th International Conference on Approximation Methods and Numerical Modelling in Environment and Natural Resources, May 2011, Saidia, Morocco 
                 Communication dans un congrès
                    
        
        
            
                
                    hal-00967868
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            Metastabilizing aqueous solutions in micrometric cylindrical tubesGoldschmidt Conference "Earth, Energy & the Environment", Jun 2010, Knoxville, Tennesse, United States. pp.:A111-A111 
                 Communication dans un congrès
                    
        
        
            
                
                    hal-00569362
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            CO2 partial pressure in clayrocks: a general modelWater-Rock Interaction WRI-13, Aug 2010, Guanajuato, Mexico. pp.855-858 
                 Communication dans un congrès
                    
        
        
            
                
                    hal-00664967
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            Comparison of natural tracer profiles in porewater across the Tournemire argillite4th International Meeting : "Clays in Natural & Engineered Barriers for Radioactive Waste Confinement", Mar 2010, Nantes, France 
                 Communication dans un congrès
                    
        
        
            
                
                    hal-00551897
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            Profiles of chloride and water stable isotope in porewater obtained from a 2000 m-deep borehole through the Mesozoic sedimentary series in the East of France4th International Meeting "4th International Meeting "Clays in natural & engineered barriers for radioactive waster confinement", Mar 2010, Nantes,, France 
                 Communication dans un congrès
                    
        
        
            
                
                    hal-00551895
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            Contribution of natural tracer profiles for the characterization of transport properties of argillaceous formationsEGU, Apr 2009, Vienne, Austria. pp.5648-1 
                 Communication dans un congrès
                    
        
        
            
                
                    hal-00551901
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            Mechanical stress due to the capillary bridging in unsaturated zone19th VM Goldschmidt Conference, Jun 2009, Davos, Switzerland. pp.A150-A150 
                 Communication dans un congrès
                    
        
        
            
                
                    hal-00409386
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            Helium production and transport in low permeability formations : the case of the Toarcian argillites at Tournemire (France)AGU Fall Meeting, Dec 2009, San Francisco, United States. pp.90 
                 Communication dans un congrès
                    
        
        
            
                
                    hal-00551899
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            PH4: a 250m deep borehole in Tournemire for assessing the reliability of chloride-, helium and water stable isotopes profiles in the Toarcian/Domerian shalesInt. Meet. "Clays in Natural & Engineered Barriers for Radioactive Waste Confinement", Sep 2007, Lille, France 
                 Communication dans un congrès
                    
        
        
            
                
                    hal-00552040
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            Effect of microbial activity on the chemical composition of groundwaters in the argillaceous formation of Tournemire (France)International Conference on Clay in natural and engineered barriers for radioactive waste confinement, Mar 2005, Tours, France 
                 Communication dans un congrès
                    
        
        
            
                
                    hal-00412321
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            Evaluation of damage-induced diffusion parameters in Tournemire argillite using an in-situ experiment10th International conference on Chemistry & Migration behaviour of Actinides & Fission products in Geosphere "Migration 05", Sep 2005, Avignon, France 
                 Communication dans un congrès
                    
        
        
            
                
                    hal-00414359
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            THE MODERN2020 IN SITU TESTS IMPLEMENTED AT THE TOURNEMIRE URL – TESTING AND IMPROVING NEW MONITORING SENSORS AND TECHNOLOGIES9th European Commission Conferences on Euratom Research and Training in Radioactive Waste Management, EURADWASTE 2019, Jun 2019, PITESTI, Romania. 9th European Commission conference on Euratom research and training in radioactive waste management : conference proceedings, 6.3, pp.184-197, 2019, EURADWASTE. ⟨10.2777/64867⟩ 
                 Poster de conférence
                    
        
        
            
                
                    hal-03471502
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            Statistical Analyses of Pore Pressure Signals in Claystone During Excavation Works at the Mont Terri Underground Research LaboratoryRadioactive Waste, In Tech, pp.58, 2012, 978-953-51-0551-0. ⟨10.5772/33187⟩ 
                 Chapitre d'ouvrage
                    
        
        
            
                
                    hal-04352984
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            Carbonate Cement in the Triassic Chaunoy Formation of the Paris Basin: Distribution and Effect on Flow PropertiesCarbonate Cementation in Sandstones, Blackwell Publishing Ltd., pp.163-177, 2009, ⟨10.1002/9781444304893.ch7⟩ 
                 Chapitre d'ouvrage
                    
        
        
            
                
                    irsn-03882316
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