1887

Abstract

Summary

Seismoelectric effects and streaming potential play an important role in geophysical applications. For example, seismoelectric effects are used to investigate oil and gas reservoirs and downhole seismoelectric imaging. Streaming potential is used for mapping subsurface flow in oil reservoirs, the study of hydrothermal activity in geothermal areas. The permeability of reservoir rocks is an important parameter influencing the coupling between fluid flow and electrical current. Permeability dependence of streaming potential coupling coefficients was already studied without consideration of the variation of zeta potential from sample to sample and the variation of the surface conductance versus electrolyte concentrations. The authors presumed that the zeta potential to be the same for the same kind of materials. However, the mineral compositions are somehow different from sample to sample even though they are taken from the same block and therefore, the zeta potential may vary. To study permeability dependence of streaming potential including the effects of the variation of the zeta potential and surface conductance, we performed streaming potential measurements on consolidated samples. The results have shown that the coupling coefficients strongly depend on permeability for low fluid conductivity. This behavior was quantitatively explained by surface conductivity effect in combination with a theoretical model.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.20141308
2014-06-16
2024-03-29
Loading full text...

Full text loading...

References

  1. Glover, P.W.J. and Walker, E.
    [2009] Grain-size to effective pore-size transformation derived from electrokinetic theory. Geophysics74, E17–E19.
    [Google Scholar]
  2. Glover, P.W.J., Walker, E. and Revil, A.
    [2012] Streaming-potential coefficient of reservoir rock: A theoretical model. Geophysics77, D17–D43.
    [Google Scholar]
  3. Hunter, R.J.
    [1981] Zeta potential in colloid science. Academic, New York.
    [Google Scholar]
  4. Jouniaux, L. and Pozzi, J.
    [1995] Permeability dependence of streaming potential in rocks for various fluid conductivities. Geophysical Research Letters22, 485–488.
    [Google Scholar]
  5. Luong, D.T. and Sprik, R.
    [2013] Streaming potential and electroosmosis measurements to characterize porous materials. ISRN Geophysics, Article ID 496352.
    [Google Scholar]
  6. Morgan, F.D., Williams, E.R. and Madden, T.R.
    [1989] Streaming potential properties of westerly granite with applications. Journal of Geophysical Research94, 12.449–12.461.
    [Google Scholar]
  7. Pagoulatos, A.
    [2004] Evaluation of multistage triaxial testing on Berea sandstone. Degree of Master of Science, Oklahoma.
    [Google Scholar]
  8. Sprunt, E.S., Mercer, T. and Djabbarah, N.
    [1994] Streaming potential from multiphase flow. Geophysics59, 707–711.
    [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.20141308
Loading
/content/papers/10.3997/2214-4609.20141308
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