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Keywords: simulation
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Proceedings Papers

Paper presented at the 3rd International Discrete Fracture Network Engineering Conference, June 29–July 1, 2022
Paper Number: ARMA-DFNE-22-0048
... 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...
Proceedings Papers

Paper presented at the 3rd International Discrete Fracture Network Engineering Conference, June 29–July 1, 2022
Paper Number: ARMA-DFNE-22-0033
... orientation upstream oil & gas algorithm discontinuity bedding simulation mechanism assessment evaluation fracture united states government artificial intelligence fracman former chalk quarry wall scanline workflow rocscience instability mesh dataset comparison DFNE 22 33 Slope...
Proceedings Papers

Paper presented at the 3rd International Discrete Fracture Network Engineering Conference, June 29–July 1, 2022
Paper Number: ARMA-DFNE-22-0067
...-dimensional fractional Brownian motion model. Finally, the effective resistivity of digital core under different fracture parameters is simulated and calculated by finite element method, and the variation law of digital core resistivity under different wettability and fracture arrangement is analyzed...
Proceedings Papers

Paper presented at the 3rd International Discrete Fracture Network Engineering Conference, June 29–July 1, 2022
Paper Number: ARMA-DFNE-22-0007
... 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...
Proceedings Papers

Paper presented at the 3rd International Discrete Fracture Network Engineering Conference, June 29–July 1, 2022
Paper Number: ARMA-DFNE-22-0008
... by distributions and connectivity of permeable fractures. In such case, a use of discrete fracture network (DFN) models is effective to simulate the groundwater flow, as DFN approach can express fractures stochastically in three-dimension based on statistical distribution of fracture parameters. One of the key...
Proceedings Papers

Paper presented at the 3rd International Discrete Fracture Network Engineering Conference, June 29–July 1, 2022
Paper Number: ARMA-DFNE-22-0049
... of the flow properties of these maps using a streamline simulator and invoking the fracture continuum model showed that pairs of maps with same connectivity but different visual appearances yield distinct recovery curves and time-of-flight (TOF) plots. A MATLAB toolbox, FracPaQ, is used to identify...
Proceedings Papers

Paper presented at the 3rd International Discrete Fracture Network Engineering Conference, June 29–July 1, 2022
Paper Number: ARMA-DFNE-22-0027
... of fluid flow in rock fracture networks. Based on the flow simulations and experiments, regression functions in terms of each kind of geometric parameter were obtained to determine nonlinear coefficients. Through independent and comprehensive analysis, the quantitative relationships between the nonlinear...
Proceedings Papers

Paper presented at the 3rd International Discrete Fracture Network Engineering Conference, June 29–July 1, 2022
Paper Number: ARMA-DFNE-22-0010
... setup orientation aperture fluid dynamics complex reservoir porosity canada government simulation connectivity fracture intensity rock mechanic international journal evaluation transition duct lab-scale experiment fracture aperture DFNE 22 10 Controlled lab-scale evaluation...
Proceedings Papers

Paper presented at the 3rd International Discrete Fracture Network Engineering Conference, June 29–July 1, 2022
Paper Number: ARMA-DFNE-22-0006
... of discontinuities per unit volume (P32) seems more suitable for rock slopes modeling with DFN, given its volumetric conception. Some methodologies allow estimating P32 indirectly from P10, using simulated DFN models. In this work, P10 is obtained directly from surface measurements using a close-range photogrammetry...
Proceedings Papers

Paper presented at the 3rd International Discrete Fracture Network Engineering Conference, June 29–July 1, 2022
Paper Number: ARMA-DFNE-22-2358
..., it is a challenge to quantify anisotropy in terms of fracture clustering that controls fluid flow. This research attempts to answer the question by capturing the anisotropy in fluid production rates of fracture networks and implements a modified inverted five-spot water flooding pattern. Flow simulation is done...
Proceedings Papers

Paper presented at the 3rd International Discrete Fracture Network Engineering Conference, June 29–July 1, 2022
Paper Number: ARMA-DFNE-22-0018
... Abstract Numerical modelling of nuclear waste repositories frequently requires the representation of complex geological features and engineering in a computational mesh. Crystalline host rocks present particular challenges because simulation of THMC processes often necessitates the creation...
Proceedings Papers

Paper presented at the 3rd International Discrete Fracture Network Engineering Conference, June 21–25, 2021
Paper Number: ARMA-DFNE-21-2360
... this issue by analyzing flow simulations on a fracture with multiple intersections. We also propose another way to correct the intersection graph, which consists in removing redundant edges. The method drastically simplifies the intersection graph, which is promising in term of computational time. The bulk...
Proceedings Papers

Paper presented at the 2nd International Discrete Fracture Network Engineering Conference, June 20–22, 2018
Paper Number: ARMA-DFNE-18-0209
... as well as measurements of brittle and brittle-ductile structures from borehole and outcrops. It is attempted to provide input data that are necessary for numerical simulations of discrete fracture network and groundwater flow. The rock in the vicinity of the borehole is highly fractured...
Proceedings Papers

Paper presented at the 2nd International Discrete Fracture Network Engineering Conference, June 20–22, 2018
Paper Number: ARMA-DFNE-18-0285
... ABSTRACT: In this study, fracture data known as ‘Taiwan’s reference case’ were used for numerical simulation of discrete fracture network (DFN) and subsequent groundwater flow and particle tracking simulations. Borehole fracture data helped to classify the rock body into two rock domains...
Proceedings Papers

Paper presented at the 2nd International Discrete Fracture Network Engineering Conference, June 20–22, 2018
Paper Number: ARMA-DFNE-18-0191
... ABSTRACT: A combined Lattice Spring – Discrete Fracture Network method is applied as a numerical tool for 3D simulations of rock tunnel excavations in low in-situ stress environments, where falling of blocks is the main failure mechanism. In order to achieve a synthetic representation...
Proceedings Papers

Paper presented at the 2nd International Discrete Fracture Network Engineering Conference, June 20–22, 2018
Paper Number: ARMA-DFNE-18-0435
... fracturing Simulation Research Laboratory realization fracture permeability underground research laboratory continuum model Research Tunnel modeling domain validation inflow fracture model 1. INTRODUCTION The Mizunami Underground Research Laboratory (MIU) is located in the Tono area (Central...
Proceedings Papers

Paper presented at the 2nd International Discrete Fracture Network Engineering Conference, June 20–22, 2018
Paper Number: ARMA-DFNE-18-0469
... equations on the graph and the algorithm has a single parameter that can be modified to directly control the size of the sub-graph. Mapping the sub-graph back to its pre-image yields a pruned DFN on which simulation of flow and transport is much faster due to decreased system size. Earlier methods that were...
Proceedings Papers

Paper presented at the 2nd International Discrete Fracture Network Engineering Conference, June 20–22, 2018
Paper Number: ARMA-DFNE-18-0426
... diffusion) in an equivalent porous medium. Reservoir Characterization Upstream Oil & Gas Simulation hydraulic fracturing nonlinear diffusion pressure diffusion fluid pressure flow in porous media aperture fracture network Shapiro injection permeability seismicity constitutive model...
Proceedings Papers

Paper presented at the 2nd International Discrete Fracture Network Engineering Conference, June 20–22, 2018
Paper Number: ARMA-DFNE-18-0527
... elastic properties in the context of a continuum-based numerical framework and an unstructured mesh discretization. The wave propagation and scattering processes in the fractured rocks are simulated using the finite element method. The numerical model is validated against analytical solutions...

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