ANR TRANSEK ANR TRANSEK : TRANSient ElectroKinetics

Seismo-electromagnetic conversions in porous media- Conversions sismo-électromagnétiques en milieu poreux

Porteuse: L. Jouniaux (IPGS)

Laboratoires participants:

• Institut de Physique du Globe de Strasbourg, UMR7516 CNRS/ Université de Strasbourg
• Laboratoire d'Hydrologie et de Géochimie de Strasbourg, UMR7517 CNRS/ Université de Strasbourg
• Laboratoire des Fluides Complexes et Réservoirs (LFCR), Université de Pau et des Pays de l'Adour
• IsTerre, Université de Grenoble

Recrutement d'un étudiant en thèse à Strasbourg (3 ans), d'une postdoc à Pau (28 mois), d'un postdoc à Strasbourg (10 mois).

Transient seismo-electromagnetic phenomena are especially appealing to hydrogeophysics because of their potential to characterize the fluids contained in the reservoir rocks with the resolution of seismic methods. Indeed seismo-electromagnetic tomography is expected to combine the sensitivity of electrical properties to water-content and permeability, to the high spatial resolution of seismic surveys, which can not be achieved with other geophysical methods. To be able to develop the potential of this innovative method, a better understanding of the physical processes and a reliable quantification of the conversion between seismic energy and electric energy are necessary. Moreover a suitable interpretation of the observations, especially in the shallow subsurface, needs to take into account the water-content, the rock conductivity, and the water conductivity.

Electrokinetic coupling phenomena can be created at the microscopic scale when there is a relativemotion of electrolyte ions with respect to the mineral surface (grains). Seismic wave propagation in fluid-filled porous media generates conversions from seismic to electromagnetic energy which can be observed at the macroscopic scale, due to this electrokinetic coupling at the pore scale.

The main objective of this project is to perform detailed studies of these seismoelectric coupling effects, both experimentally and theoretically, to develop an analysis of the observed signals, in order to improve our understanding of these phenomena and to assess their potential use for the characterization of the fluid contents of porous media.

PUBLICATIONS

Allègre, V., F. Lehmann, L. Jouniaux, P. Sailhac and R. Toussaint, Modelling the streaming potential dependence on water-content in sand: influence of pressure dynamics and fluid flow, Geophysical Prospecting, 63, 694–712, 2015

Bordes, C. , P. Sénéchal, J. Barrière, D. Brito, E. Normandin, and D. Jougnot, Impact of water saturation on seismoelectric transfer functions: a laboratory study of coseismic phenomenon , Geophys. J. Int., 200, 1317–1335, 2015

Warden, S., S. Garambois, L. Jouniaux, D. Brito, P. Sailhac, and C. Bordes, Seismoelectric wave propagation numerical modeling in partially saturated media, Geophys. J. Int., 194, 1498-1513, 2013

Barrière J., Bordes C., Brito D. Sénéchal P and Perroud H (2012) Laboratory monitoring of P-waves in partially saturated sands, Geophysical Journal International,Volume 191, Issue 3, December 2012, Pages: 1152–1170.

Warden, S., S. Garambois, P. Sailhac, L. Jouniaux and M. Bano, Curvelet-based seismoelectric data processing, Geophys. J. Int., 190, 1533-1550, 2012

Jouniaux L. and C. Bordes, Frequency-dependent streaming potentials: a review, International J. of Geophysics, vol. 2012, Article ID 648781, Special issue on Electrokinetics in Earth Sciences, Hindawi Publishing Corporation, 2012

Jouniaux L. and T. Ishido, Electrokinetics in Earth Sciences: a tutorial, International J. Geophysics, vol. 2012, Article ID 286107, Special Issue on Electrokinetics in Earth Sciences, Hindawi Publishing Corporation, 2012.

Allègre, V., F. Lehmann, P. Ackerer, L. Jouniaux, and P. Sailhac, A 1D modelling of streaming potential dependence on water-content during drainage experiment in sand, Geophys. J. Int., 189, 285-295, 2012

Strahser, M., L. Jouniaux, P. Sailhac, P.-D. Matthey, and M. Zillmer, Dependence of seismoelectric amplitudes on water content, Geophys. J. Int., 187, 1378-1392, 2011, doi: 10.1111/j.1365-246X.2011.05232.x

Allègre, V., L. Jouniaux, F. Lehmann, and P. Sailhac, Reply to the comment on Streaming potential dependence on water-content in Fontainebleau sand, Geophys. J. Int. by A. Revil and N. Linde , Geophys. J. Int., 186, 115-117, 2011, doi: 10.1111/j.1365-246X.2011.05038.x

Allègre, V., L. Jouniaux, F. Lehmann, and P. Sailhac, Streaming potential dependence on water-content in Fontainebleau sand, Geophysical Journal International, 182, 1248-1266, 2010.

COMMUNICATIONS

L. Jouniaux, V. Allègre, C. Bordes, S. Garambois, P.-D. Matthey, P.Sénéchal, S. Warden TRANSEK: Conversions sismo-électromagnétiques en milieu poreux, Programme Blanc 2008 , Séminaire de réstitution et d'avancement des projets ANR sur les « Changements Environnementaux », poster, Toulouse, 17-18 avril 2013

C. Bordes, S. Garambois, D. Brito, M. Dietrich, J. Holzhauer , Experimental and numerical evidences of the observation of the Biot slow wave thanks to its electrokinetic conversion, AGU Fall Meeting, 2013

Warden, S., S. Garambois, P. Sailhac, L. Jouniaux, and M. Bano, Curvelet-based seismoelectric data processing, E.G.U. vol. 14, EGU2012-5255-1, Vienne 2012

AllègreV., Sénéchal, C.Bordes, L. Jouniaux, and S.Warden, On the use of a combined geophysical approach to estimate the seismoelectric amplitude dependence on water content, E.G.U., p.12652, Vienne 2012

Barrière, J., C. Bordes, D. Brito, and P. Sénéchal, Laboratory monitoring of P-waves in partially saturated sand, Hydrogeophysics Workshop, Poster, SEG-AGU 2012, Boise

Sénéchal, P., C. Bordes, J. Barrière On the role of water saturation on the seismoelectric coupling: a laboratory experiment, Poroelasticity Minisymposium 2012, 26th June, Poster, Zurich

Barrière, J., C. Bordes, D. Brito, and P. Sénéchal, Laboratory monitoring of P-waves in partially saturated sand, Poroelasticity Minisymposium 2012, 26th June, Poster, Zurich

J. Barrière, C Bordes, P Sénéchal, D Brito, and H Perroud, P-wave monitoring of an unconsolidated and partially saturated porous medium : an experimental study Vol. 14, EGU2012-11099, 2012, Oral presentation.

C. Bordes, P. Sénéchal, S. Garambois, J. Holzhauer, and D. Brito, On the convenience of static and dynamic transfer functions in seismoelectric data: the role of permeability, Vol. 14, EGU2012-7469-1, 2012, Poster

Holzhauer, J., C. Bordes, F. Oppermann, D. Brito, and U. Yaramanci, Impact of permeability on seismoelectric transfer function of P waves, Vol. 14, EGU2012-6253-4, 2012, Poster

Sénéchal, P. and C. Bordes, On the relevance of the acquisition configuration for seismoelectric recording, Vol. 14, EGU2012-8193, 2012, Poster, EGU General Assembly 2012

Warden, S., S. Garambois, L. Jouniaux, and P. Sailhac, A review of seismoelectric data processing techniques, A.G.U. San Francisco 2011

Warden, S., S. Garambois, L. Jouniaux and P. Sailhac, Filtering techniques applied to synthetic seismoelectric data, Seismoelectrics International Workshop, Hannover, Feb. 2011_INV

Bordes, C., P. Sénéchal, S. Garambois, L. Jouniaux, and M. Dietrich, Seismoelectric and seismomagnetic measurements in partially saturated sands: an experimental approach, Seismoelectrics International Workshop, Hannover, Feb. 2011.

Allègre, V., L. Jouniaux, F. Lehmann and P. Sailhac, Streaming potential in unsaturated porous media: an experimental and numerical approach, Seismoelectrics International Workshop, Hannover, Feb. 2011

Sénéchal, P., C. Bordes, and J. Barrière, Spectral analysis of seismoelectric signal for water saturation monitoring, Near surface, 17th European meeting on Environmental and engineering Geophysics, Leicester, 2011

Jouniaux, L., Restitution mi-parcours ANR TRANSEK : Conversions sismo-électriques en milieu poreux, Montpellier, 23-24 mars 2011

Barrière, J., C. Bordes, D. Brito, P. Sénéchal, H. Perroud, Laboratory monitoring of P-waves in partially saturated sand, AGU Fall Meeting, San Fransisco 2010

Allègre, V., F. Lehmann, P. Sailhac, L. Jouniaux, P. Sénéchal, C. Bordes, and M. Bano, Modelling the electrokinetic dependence on water-content in sand, E.G.U., Vienne, 2010

Barrière J. , C. Bordes and P. Sénéchal, Experimental study of seismic attenuation in partially saturated porous media, E.G.U., Vienna 2010

Allègre, V., P. Sénéchal, F. Lehmann, C. Bordes, L. Jouniaux, P. Sailhac, and M. Bano, Electrokinetics dependence on water-content: laboratory and field approach, EGU Vienne 2010.

Sénéchal, P., J. Barrière, C. Bordes Monitoring of seismoelectric signals in homogeneous sand as a function of water saturation, AGU Fall Meeting, San Fransisco, 2010

Barrière, J., P. Sénéchal, C. Bordes and H. Perroud, Relationship between P-wave attenuation and water saturation in an homogeneous unconsolidated and partially saturated porous media : An experimental study, AGU Fall Meeting, San Francisco, 2010

Allègre, V., F. Lehmann, L. Jouniaux, P. Sailhac, and P.-D. Matthey, Electrokinetics dependence on water-content in sand, NS31B-1161, A.G.U., San Francisco, 2009

Allègre, V., F. Lehmann, L. Jouniaux, and P. Sailhac, Phénomènes électrocinétiques associés à la circulation d’eau dans un sable, 9^ièmeJEMP (Journées d’étude sur les milieux poreux), Orsay, 21-22 octobre 2009

Allègre, V., F. Lehmann, L. Jouniaux, and P. Sailhac, Streaming potential and electrical measurements in unsaturated sand, E.G.U., Vienne, 2009

Bordes, C., S. Garambois, L. Jouniaux, and P. Sénéchal, Seismoelectric measurements for the caracterization of partially saturated porous media, NS04, A.G.U. San Francisco, 2009.

Sénéchal, P., C. Bordes, J. Barrière, S. Garambois and D. Brito, Experimental seismic investigations for porous media characterization, NS23A-1112, A.G.U. San Francisco, 2009.

key words: seismoelectric conversion, seismoelectromagnetic, seismomagnetic, electrokinetics, streaming potential, water content, partial saturation, experimental developments, field observations, filtering processes,