Topology of fracture networks

Christian André Andresen (1) , Alex Hansen (1) , Romain Le Goc (2) , Philippe Davy (2) , Sigmund Mongstad Hope (1)

1 Physics NTNU - Department of Physics [Trondheim]
2 GR - Géosciences Rennes

We propose a mapping from fracture systems consisting of intersecting fracture sheets in three dimensions to an abstract network consisting of nodes and links. This makes it possible to analyze fracture systems with the methods developed within modern network theory. We test the mapping for two-dimensional geological fracture outcrops and find that the equivalent networks are small-world and dissasortative. By analyzing the Discrete Fracture Network model, which is used to generate artificial fracture outcrop networks, we also find small world networks. However, the networks turn out to be assortative.

Keywords: fractures; fracture networks; network topology; dual networks; network analysis

Domains: Sciences of the Universe [physics]; Earth Sciences; Geophysics [physics.geo-ph]

Christian André Andresen, Alex Hansen, Romain Le Goc, Philippe Davy, Sigmund Mongstad Hope. Topology of fracture networks. Frontiers in Physics, 2013, 1, pp.7. ⟨10.3389/fphy.2013.00007⟩. ⟨insu-00948582⟩