Premium
Dual porosity fracture flow and transport
Author(s) -
Dershowitz W.,
Miller Ian
Publication year - 1995
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/95gl01099
Subject(s) - porosity , probabilistic logic , permeability (electromagnetism) , matrix (chemical analysis) , flow (mathematics) , fracture (geology) , geology , mechanics , geotechnical engineering , materials science , computer science , composite material , physics , chemistry , biochemistry , artificial intelligence , membrane
In rock masses where fracture flow greatly exceeds flow through the rock matrix, the matrix provides a storage porosity which needs to be considered for transient flow, and for solute transport. This paper presents a dual‐porosity, single permeability approach for evaluation of flow and transport in fractured rock. The fracture network flow approach is based on a generic matrix block similar to the method of Warren and Root (1963), applied to realistic fracture geometries. The solute transport approach is based on a probabilistic concept of matrix diffusion as a process of Brownian motion, implemented using a probabilistic particle tracking technique.