Fracture distribution modeling for understanding of water-conducting features

Koike, Katsuaki*; Liu, C.*; Amano, Kenji  ; Kurihara, Arata

The object of this research is a development of modelling methods for three-dimensional fracture distribution. Our research area is Tono region in Gifu prefecture, and we performed the three-dimensional fracture distribution modeling by using borehole data and the fracture distribution analysis code (GEOFRAC) based on geostatistical methods in this area. As a results, we recognaized that fractures matched with the sudden change part of these physical properties have water-conducting feature by overlapping three-dimensional fracture distribution with distribution data of resistivity, p-wave velocity and fracture filling materials.