1887

Abstract

Summary

Enhanced Geothermal Systems (EGS) rely upon hydraulic stimulation of existing fracture networks to increase the permeability of the geothermal reservoir. Preventing any noticeable seismic event from being triggered by stimulation process being of primeval importance, microseismic activity is carefully monitored in the vicinity of EGS facilities. We are interested in a new set of information that could provide seismoelectric monitoring. We use the Synthetic Kennet Bouchon Program (SKBP) developed by Garambois and Dietrich (2002) which has been modified to model double-couple sources. Resulting synthetic seismoelectric models show that even in the case of a small magnitude earthquake whose hypocenter is located a depth greater than 2km can give rise to electric signals that could be measured at the ground surface. This is an encouraging result in the study of the feasibility of “microseismoelectric” monitoring.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.201701123
2017-06-12
2019-12-07
Loading full text...

Full text loading...

References

  1. CuevasN., RectorJ.W., MooreJ.R. and GlaserS.D.
    [2009] Electrokinetic coupling in hydraulic fracture propagation. In SEG Houston 2009 International Exposition and Annual Meeting.
    [Google Scholar]
  2. GaoY. and HuH.
    [2010] Seismoelectromagnetic waves radiated by a double couple source in a saturated porous medium. Geophysical Jounal International, 181(2), 873–896.
    [Google Scholar]
  3. Garambois, S. and Dietrich, M.
    [2002] Full waveform numerical simulations of seismoelectromagnetic wave conversions in fluid-saturated stratified porous media. Journal of Geophysical Research, 107.
    [Google Scholar]
  4. HanksT.C. and KanamoriH.
    [1979] A moment magnitude scale. Journal of Geophysical Research: Solid Earth, 84(B5), 2348–2350.
    [Google Scholar]
  5. JaafarM. Z., VinogradovJ. and JacksonM. D.
    [2009] Measurement of streaming potential coupling coefficient in sandstones saturated with high salinity NaCl brine. Geophysical Research Letters, 36(21).
    [Google Scholar]
  6. KennettB. L. N. and KerryN. J.
    [1979] Seismic waves in a stratified half space. Geophysical Journal International, 57(3), 557–583.
    [Google Scholar]
  7. MaurerV, CuenotN., GaucherE., GrimbergM., VergneJ., WodlingH., LehujeurM. and SchmittbuhlJ.
    [2015] Seismic monitoring of the Rittershoffen EGS project (Alsace, France). In Proceedings World Geothermal Congress 2015 (Extended asbtract).
    [Google Scholar]
  8. OkalE.
    [2011] Earthquake, Focal Mechanism. Springer Netherlands, Dordrecht.
    [Google Scholar]
  9. PrideS. R. and MorganF. D.
    [1991] Electrokinetic dissipation induced by seismic waves. Geophysics, 56(7), 914–925.
    [Google Scholar]
  10. VinogradovJ., JaafarM. Z. and JacksonM. D.
    [2010] Measurement of streaming potential coupling coefficient in sandstones saturated with natural and artificial brines at high salinity. Journal of Geophysical Research: Solid Earth, 115(B12).
    [Google Scholar]
  11. WardenS., GaramboisS., SailhacP., JouniauxL. and BanoM.
    [2012] Curvelet-based seismoelectric dataprocessing. Geophysical Journal International, 190(3), 1533–1550.
    [Google Scholar]
  12. WardenS., GaramboisS., JouniauxL., BritoD., SailhacP. and BordesC.
    [2013] Seismoelectric wave propagation numerical modelling in partially saturated materials. Geophysical Journal International, 194(3), 1498–1513.
    [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201701123
Loading
/content/papers/10.3997/2214-4609.201701123
Loading

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error