Scale-dependency of dispersivity has been reported from field tracer tests. We present a simple methodology for characterization of dispersivity as a linear function of scale around an injection well using divergent flow tracer test data conducted in fractured formations. Results show that the slope of this linear dispersivity function can be estimated using tracer concentration measurements in a monitoring well. The characterized dispersivity function has applications in modeling of field-scale transport processes in fractured formations.
The authors would like to thank Franklin W. Schwartz(Editor-in-Chief), Associate Editor and three anonymous reviewers for their constructive comments that greatly improved the quality of the manuscript. The support of Natural Sciences and Engineering Research Council of Canada (NSERC), Alberta Innovates -Technology Futures, Alberta Innovates - Energy Environment Solutions, Foundation CMG, and the University of Calgary is acknowledged.
- Scaled - Dependent Dispersivity
- Divergent Flow Tracer Test