title: Characterization of scale-dependent dispersivity in fractured formations through a divergent flow tracer test.
abstract: 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.
authors.affiliation: Department of Chemical & Petroleum Engineering, Schulich School of Engineering, University of Calgary, 2500 University Drive NW, Calgary, AB T2N 1N4, Canada.
authors.forename: Amin
authors.initials: A
authors.lastname: Sharifi Haddad
authors.forename: Hassan
authors.initials: H
authors.lastname: Hassanzadeh
authors.forename: Jalal
authors.initials: J
authors.lastname: Abedi
authors.forename: Zhangxin
authors.initials: Z
authors.lastname: Chen
authors.forename: Antony
authors.initials: A
authors.lastname: Ware
mesh_terms: D004784:Environmental Monitoring / Q000379:methods; D019015:Geologic Sediments; D060587:Groundwater; D008962:Models, Theoretical; D016062:Porosity; D014872:Water Movements