1887
Volume 24 Number 3
  • E-ISSN: 1365-2478

Abstract

A

In modern exploration for hydrocarbons there is a great emphasis on the location of stratigraphic traps and estimation of lithologic information like sand‐shale ratios from seismic data. In order to investigate the possibilities of success in this endeavour we have studied the synthetic seismograms for wave form and spectral characteristic for four basic sedimentation models: (I) interbedded sand‐shale model representing the sediments of generally fluviatile origin, (2) interbedded coal‐shale model representing deltaic deposits, (3) sedimentary models representing transgression and regression of shore lines, and (4) a basal sand model. The results have shown that for the first two models a change in the sand‐shale or coal‐shale ratio results in a characteristically different seismogram. The nature of the seismogram, however, is also strongly dependent on how the sand‐shale or coal shale layers are arranged to ultimately give the same number of total layers, thus implying the same coal‐shale or sand‐shale ratios. The transgression, regression, and basal sand models also produce characteristically different seismic signatures. The spectra of these seismograms show attendant characteristic changes. However, it seems that in the case of real data which are disturbed by noise and the effects of overlying layers these characteristic features may not always be distinguishable.

Loading

Article metrics loading...

/content/journals/10.1111/j.1365-2478.1976.tb00948.x
2006-04-27
2024-04-20
Loading full text...

Full text loading...

References

  1. Avasthi, D. N., and Varma, S. K., 1973, Analysis of the statistical structure of seismic reflection for delineation of stratigraphic traps for oil, Paper presented at the Indo‐Soviet Symposium on Recent Trends in Exploration of Minerals, Oil and Ground Water, Sponsored the by Indian National Science Academy and the Academy of Sciences of U.S.S.R. at New Delhi, Oct. 1520, 1973.
  2. Claerbout, J. F., 1968, Synthesis of a layered medium from its acoustic transmission response, Geophysics33, 264–269.
    [Google Scholar]
  3. Cook, E. E., and Taner, M. T., 1969, Velocity spectra and their use in stratigraphic and lithologic differentiation, Geophys. Prosp., 17, 433–448.
    [Google Scholar]
  4. Duff, P.Mc, L. D., Hallam, A. and Walton, E. K., 1967, Cyclic sedimentation, Elsevier Publishing Co., Amsterdam .
    [Google Scholar]
  5. Harms, J. C., and Tackenberg, P., 1972, Seismic signatures of sedimentation models, Geophysics37, 45–58.
    [Google Scholar]
  6. Mathieu, P. G., and Rice, G. W., 1969, Multivariate analysis used in the detection of stratigraphic anomalies from seismic data, Geophysics34, 507–515.
    [Google Scholar]
  7. Ristow, D. and Bortfeld, R., 1971, Statistical methods applied to seismic data in the search of small faults and lithologic variations. Proceedings of the Eighth World Petroleum Congress 3, Applied Science Publishers, London .
    [Google Scholar]
  8. Savit, C. H., and Mateker, E. J., 1971, From “Where” to “What”. Proceedings of the Eighth World Petroleum Congress 3; Applied Science Publishers, London .
    [Google Scholar]
  9. Selley, R. C., 1970, Ancient Sedimentary Environments—A Brief Survey, Chapman & Hall Ltd., London .
    [Google Scholar]
  10. Smith, M. K., 1969, Developments in seismic processing for geologic interpretation, Paper presented at the 54th annual meeting of AAPG at Dallas.
  11. Taner, M. T., and Koehler, F., 1969, Velocity spectra‐Digital computer derivation and applications of velocity functions, Geophysics34, 859–881.
    [Google Scholar]
  12. Treitel, S., and Robinson, E. A., 1966, Seismic wave propagation in layered media in terms of communication theory, Geophysics31, 17–32.
    [Google Scholar]
http://instance.metastore.ingenta.com/content/journals/10.1111/j.1365-2478.1976.tb00948.x
Loading
  • Article Type: Research Article

Most Cited This Month Most Cited RSS feed

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