2018 September 28 2nd GEOTREF PhD defense

The second GEOTREF PhD has been defended by Keurfon Luu on septembre 2018 at 2 pm, the 28th September, in the Ecole des Mines de Paris : Numerical optimization using stochastic evolutionary algorithms: application to seismic tomography inverse problems.

Abstract

Seismic traveltime tomography is an ill-posed optimization problem due to the non-linear relationship between traveltime and velocity model. Besides, the solution is not unique as many models are able to explain the observed data. The non-linearity and non-uniqueness issues are typically addressed by using methods relying on Monte Carlo Markov Chain that thoroughly sample the model parameter space. However, these approaches cannot fully handle the computer resources provided by modern supercomputers.

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2018 October 22-26 26th RST

GEOTREF will be represented in Lille, Francia with 3 oral communications on Thursday the 25th, October, in the morning, in the session 15:3 Geothermal energy.

Characterization of an exhumed high temperature paleo-geothermal reservoir by clay minerals and secondary phases identifications in Terre-de-Haut island (Les Saintes archipelago, Guadeloupe).

Beauchamps G.1; Ledésert B.1; Ronan H.1; Bourdelle F.2; Dubois M.2
1. Geosciences Environnement Cergy, Université de Cergy-Pontoise, France.
2. Laboratoire de Génie Civil et géo-Environnement, Université de Lille, France.

L’étude de paléo-réservoirs exhumés dans les Petites Antilles : vers une meilleure compréhension des réservoirs géothermaux profonds en contexte d’arc volcanique.

Favier A.1; Vérati C.1; Corsini M.1; Lardeaux J.M.1; Münch Ph.2
1. Géoazur, Université de Nice, France.
2. Géosciences Montpellier, France.

Caractérisation des propriétés réservoirs de roches volcaniques appliquée au projet de géothermie GEOTREF sur Basse – Terre de Guadeloupe.

Azzimani Y.1
1. Geosciences Environnement Cergy, Université de Cergy-Pontoise, France.

Publication of a GEOTREF article in Journal of Volcanology and Geothermal Research

Publication of a GEOTREF article in Journal of Volcanology and Geothermal Research.

Petrophysical properties of volcanic rocks and impacts of hydrothermal alteration in the Guadeloupe Archipelago (West Indies).

Navelot V.1; Géraud Y.1; Favier A.2,3; Diraison M.1; Corsini M.2;Lardeaux J.M.2; Veraty C.2; Mercier de Lépinay J.4; Legendre L.3; Beauchamps G.5
1. GeoRessources, Nancy, France.
2. GéoAzur, Nice – Sophia Antipolis, France.
3. Université des Antilles, pôle Guadeloupe, France.
4. IPGS, Strasbourg, France.
5. GEC – université de Cergy-Pontoise, France.

CMWR 2018 Bridging gaps between data, models, and prediction

Logo of CMWR 2018

XXIInd Congress to Saint Malo

The XXIInd Congress congrès  international bisannuel de Computational Methods in Water Resources was held from 3 to 7 june 2018 in St-Malo, France.

The GEOTREF project was represented by two oral commnications.

IMFT (*): in the session 13-Intensive Flow and transport modelling in fractured porous media: state of the art and actual challenges, presented Fast Upscaling of the Hydraulic Conductivity of 3D Fractured Porous Rock for Geothermal Reservoir Modeling.

Armines (**): in the session 01-Advances in Discrete Fracture Network (DFN) models, presented An attempt to generate physically-based DFN for coupled hydro-mechanical simulation.

(*) Rachid Ababou (1), Tawfik Rajeh (1), Manuel Marcoux(1), Israel Cañamón Valera (2)
(1) Institut de Mécanique des Fluides de Toulouse (Université de Toulouse),
2 Allée du professeur Camille Soula, 31400 Toulouse, France
(2) ETSI de Minas y Energía, Departamento de Ingeniería Geológica y Minera (Universidad
Politécnica de Madrid), C./ Ríos Rosas 21, 28003 Madrid (Spain)

(**) Dominique Bruel,
MINES ParisTech, PSL Research University, Centre de Geosciences, 35 rue St Honoré, 77300 Fontainebleau, France

Third GEOTREF scientific workshop

The third GEOTREF scientific workshop was held on 20-21 March 2018 in the Ecole Normale Supérieure, Paris (see program). More than 40 scientists and engineers attended the two-day workshop to present their work and discuss results and interpretations related to the Demonstrator of Guadeloupe.

Armines MNo april 2018

A parallel Competitive Particle Swarm Optimization for non-linear first arrival traveltime tomography and uncertainty quantification.

Luu, K.1; Noble M.1; Gesret A.1; Belayouni N.2; Roux P.F.2
1. Mines ParisTech, PSL – Research University, Centre de Geosciences, 35, rue Saint-Honore, 77305 Fontainebleau, France.
2. Baker Hughes, a General Electric Company, France.

Book Computers & Geosciences, 113, 81-93

2018 april 08-13 EGU General Assembly

GEOTREF was represented in Vienna, Austria with 3 oral communications.

Structural and thermo-physical characterizations of a potential geothermal system in Basse-Terre Island (Guadeloupe archipelago, Lesser Antilles).

Géraud, Y.1; Navelot V.1; Diraison M.1; Favier A.2, 3; Corsini M.2; Mercier de Lépinay J.4; Munschy M.4
1. GeoRessources Lab, ENSG-Université de Lorraine, Nancy, France.
2. Geoazur, Université de Nice, France.
3. Université des Antilles, pôle Guadeloupe, France.
4. IPGS, Université de Strasbourg, France.

Short summary of petrophysical and structural studies to characterize a geothermal system in Guadeloupe.

Navelot V.1; Géraud Y.1; Diraison M.1; Bartier A.1; Favier A.3; Corsini M.2; Beauchamps G.3; Mercier de Lépinay J.4
1. GeoRessources Lab, ENSG-Université de Lorraine, Nancy, France.
2. Geoazur, Université de Nice, France.
3. GEC, Université de Cergy-Pontoise, France.
4. IPGS, Université de Strasbourg, France.

The student’s conceptions of Geothermy are context dependent. A comparative study in the Caribbean.

Anjou C.1; Mazabraud Y.1
1. Université des Antilles, ESPE de Guadeloupe, France.