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| Titel |
Solute transport in fractured media – analysis of non-reversibility in tracer tests |
| VerfasserIn |
N. E. V. Rodrigues, J. L. M. P. Lima, F. F. Cruz |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1023-5809
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| Digitales Dokument |
URL |
| Erschienen |
In: Nonlinear Processes in Geophysics ; 15, no. 5 ; Nr. 15, no. 5 (2008-10-23), S.783-791 |
| Datensatznummer |
250012764
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| Publikation (Nr.) |
 copernicus.org/npg-15-783-2008.pdf |
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| Zusammenfassung |
This paper describes several small-scale (laboratory) experiments designed
to simulate solute transport through fractured formations. A block of
granite was broken to produce a fracture similar to those found in natural
environments. Seven holes were drilled in the block to intersect the
fracture. Later these holes functioned as either inlet or outlet points. All
the possible combinations of pairs of inlet-outlet points were used to set
up the tracer tests that provided the data analysed in this paper.
The results indicate that reverse tracer tests do not necessarily provide
symmetric results. Under some circumstances, the non-reversibility might be
used to detect differences in the morphology of the fracture. The results
also indicate that it is possible to estimate reasonably well the volume
available for the circulation of the fluid by using transport models that
neglect diffusion. |
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