... Fracture Networks (DFN) and numerical modelling methods, with fewer lab-scale experiments. Advancements in 3D printing technology allows for generating valuable lab-scale physical models representing fractured media. In this work, a DFN model is built using the DFN software MoFrac and a 3D physical model...

... Abstract This study details characterization and Discrete Fracture Network (DFN) modeling of a naturally fractured carbonate reservoir with natural fractures and karst, or “non-matrix,” that are essential to production. Characterization of non-matrix follows a workflow where non-matrix...

... Abstract This paper presents the development and results of Discrete Fracture Network (DFN) modelling of a 100m wide fault zone for a proposed underground long wall panel at a coal mine in the Newcastle Coalfield, Australia. The purpose of the DFN modelling was to estimate the risk of unstable...

... Abstract Defining the fracture intensity in DFN models is crucial since a good refinement level is required to represent the insitu rock slopes conditions adequately. Most estimates are expressed in terms of the number of discontinuities per unit length (P10). However, the area...

... Abstract When simulating flow and transport through sparsely fractured rocks in Earth’s subsurface, discrete fracture network (DFN) modeling has become the alternative approach to continuum approaches. In this work, DFNs are generated using dfnWorks, a parallelized computational suite...

... Abstract This paper focuses on the understanding of the controlling factors of breakthrough curves in fractured systems. DFN.lab is used to define DFN models derived from the characteristics of a sub-part of the Forsmark repository and to perform simulations of flow and of inert transport...

... Abstract The city of Sydney (Australia) is currently undergoing a major infrastructure construction boom, with numerous rail and road tunnels currently under construction. This paper presents DFN modelling undertaken as part of the tunnel design process for a major road tunnel system...

... Abstract In open pit stability analyses, numerical modeling helps to evaluate failure modes related to the interaction between discontinuities and the rock mass. In particular, numerical models that integrate discrete fracture networks (DFNs) are a relevant tool for detecting slope failure...

... to investigate kinematically feasible sliding mechanisms beneath the dam spillway and abutments. This package of work included creation of a discrete fracture network model. The DFN modelling in this study was undertaken in two stages, with an initial model built to be representative of sub-horizontal fractures...

... Abstract A three-dimensional fractal discrete fracture network (DFN) model for radon migration in fractured rocks is presented in this paper. In the model, the first-order model determines the location of fracture center and the distribution of fracture length, the von Mises-Fisher...

... Abstract We evaluate the use of graphs as a fast and relevant substitute to DFNs. Graphs reduce the DFNs’ complexity to their connectivity structure by forming an assembly of nodes connected by edges, to which physical properties, like a conductance, can be assigned. Both the graph...

... ABSTRACT ABSTRACT: We present an algorithm for system-reduction of DFNs using graph representations that inherit hydrological parameters like permeability and make sensible the notion of flow and transport on the graph. The graph is pruned based on edge fluxes obtained from solving the flow...

... ABSTRACT: Geomechanical discrete fracture networks (DFNs) are grown using a 3D finite element-based fracture mechanics simulator. The influence of the fracture growth rate exponent (ß) on the resulting fracture geometry and hydraulic properties of networks is investigated. Previous work has...

... in fractured bedrock directly, using an explicit discrete fracture network (DFN) representation. This is the approach considered here. hydraulic fracturing ecpm representation boundary condition complex reservoir safety assessment fracture network calculation meteoric water continuous porous...

... Network, DFN) to an upper reservoir (continuum). The reservoirs are modeled using a continuum volume mesh, and the caprock, where fractures are naturally present, is modeled using a discrete fracture network. The constructed model allows one to capture the effect of fracture network complexity on CO 2...

... ABSTRACT: Microseismic monitoring has been widely used to image the growth of fracture network in unconventional reservoir development. It is the key for stimulation optimization to understand clearly geometric features of discrete fracture network (DFN) created by hydraulic fracturing...

... allows representation of a discrete fracture network (DFN) within a rock mass. Fracture aperture and permeability are allowed to vary with fluid pressure, according to the Bandis constitutive model. Pressure diffusion is permitted in the fractures and rock matrix, including hydraulic interactions between...

... ABSTRACT: The stochastic nature of the DFN process is such that there is an infinite, but equally probable, number of possible realisations of the 2D fracture systems based on the specified input parameters. Ideally, synthetic rock mass modelling should include the numerical testing...

... and experiments in a medium with discrete parallel fractures have led to confidence that the models can accurately reproduce wave interaction with fractures. But what about waveforms for waves propagating through a more complex fracture network? In this work we use a DFN tool to create a fracture network and pass...

... ABSTRACT: This paper summarizes the simplification approaches applied to the Discrete Fracture Network (DFN) used in modeling of field scale EGS and other unconventional reservoirs. The main objective of the DFN simplification processes is to preserve the properties of the rock mass, i.e...