1887
Volume 32 Number 6
  • E-ISSN: 1365-2478

Abstract

A

A numerical method is presented for direct interpretation of resistivity sounding measurements. The early part of the resistivity transform curve derived from field observations by standard methods is approximated by a two‐layer curve. The resistivity of the first layer is determined from the arithmetic mean of the successive computations which are carried on each of three successive discrete values of the resistivity transform curve. Using this mean value of the resistivity, the thickness of the first layer is computed from the sample values in pairs of the resistivity transform curve. After these determinations, the top layer is removed by Pekeris's reduction equation. The parameters of the second layer are obtained from the discrete values of the reduced transform curve (which corresponds to the second part of the resistivity transform curve) by the same procedure as described for the first layer.

The same computational scheme is repeated until the parameters of all intermediate layers are obtained. The resistivity of the substratum is determined from the reduction equation.

Loading

Article metrics loading...

/content/journals/10.1111/j.1365-2478.1984.tb00759.x
2006-04-27
2020-04-05
Loading full text...

Full text loading...

References

  1. Das, U. C., Ghosh, D. P. and Biewinga, D. T.1974, Transformation of dipole resistivity sounding measurements over layered earth by linear digital filtering, Geophysical Prospecting22, 476–489.
    [Google Scholar]
  2. Flathe, H.1955, A practical method of calculating geoelectrical model graphs for horizontally stratified media, Geophysical Prospecting3, 268–294.
    [Google Scholar]
  3. Ghosh, D. P.1971, The application of linear filter theory to the direct interpretation of geoelectrical resistivity sounding measurements, Geophysical Prospecting19, 192–217.
    [Google Scholar]
  4. Koefoed, O.1969, An analysis of equivalence in resistivity sounding, Geophysical Prospecting17, 327–335.
    [Google Scholar]
  5. Koefoed, O.1970, A fast method for determining the layer distribution from the raised kernel function in geoelectrical sounding, Geophysical Prospecting18, 564–570.
    [Google Scholar]
  6. Koefoed, O.1979, Geosounding Principles 1, Resistivity Sounding Measurements, Elsevier, Amsterdam .
    [Google Scholar]
  7. Kumar, R. and Chowdary, M. V. R.1982, A numerical method to compute the resistivity transform from Wenner sounding data, Geophysical Prospecting30, 898–909.
    [Google Scholar]
  8. Nyman, D. C. and Landisman, M.1977, VES dipole—dipole filter coefficient, Geophysics42, 1037–1044.
    [Google Scholar]
  9. Orellana, E.1965, Propiedades de medios estratificados aplicadas a la prospeccion geolectrica, Revista de Geofisica24 (94), 87–152, and (95), 189–263.
    [Google Scholar]
  10. Patella, D.1975, A numerical computation procedure for the direct interpretation of geoelectrical soundings, Geophysical Prospecting23, 335–362.
    [Google Scholar]
  11. Pekeris, C. L.1940, Direct method of interpretation in resistivity prospecting, Geophysics5, 31–46.
    [Google Scholar]
  12. Santini, R. and Zambrano, R.1981, A numerical method of calculating the kernel function from Schlumberger apparent resistivity data, Geophysical Prospecting29, 108–127.
    [Google Scholar]
  13. Seara, J. L. and Conaway, J. G.1980, On the properties of the reciprocal geoelectric section, Geophysical Prospecting28, 135–145.
    [Google Scholar]
  14. Slichter, L. B.1933, The interpretation of the resistivity prospecting method for horizontal structures, Physics4, 307–322.
    [Google Scholar]
  15. Szaraniec, E.1980, Direct resistivity interpretation by accumulation of layers, Geophysical Prospecting28, 257–268.
    [Google Scholar]
  16. Vanyan, L. L., Morozova, G. M. and Lozhenits'na, L.1962, On the calculation of theoretical electrical sounding curves (in Russian), Prikladnaya Geofizika34, 135–144.
    [Google Scholar]
http://instance.metastore.ingenta.com/content/journals/10.1111/j.1365-2478.1984.tb00759.x
Loading
  • Article Type: Research Article
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