...-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...

.... The major contribution of the lab-scale experiment is to verify whether the secondary permeability of a rockmass can admit sufficient flow. fracture flow in porous media upstream oil & gas equation of state fluid dynamics complex reservoir canada government aperture porosity simulation...

... 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...

... 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...

... simulation assessment united kingdom government europe government orientation algorithm fracture mechanism workflow evaluation mesh bedding dataset united states government artificial intelligence fracman former chalk quarry wall scanline comparison instability rocscience DFNE 22 33...

..., 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...

... 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...

... 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...

... 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...

... 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 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...

... 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...

... 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...

... 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...

... 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...

... 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...

... diffusion) in an equivalent porous medium. Artificial Intelligence Fluid Dynamics DFN flow in porous media aperture fracture network Reservoir Characterization Upstream Oil & Gas Simulation diffusion sandstone case rock matrix application rock type fracture pressure diffusion...

... continuum model inflow modeling domain fracture model hydraulic fracturing Simulation Research Laboratory realization fracture underground research laboratory Research Tunnel permeability DFNE 18 435 Development and Validation of a Fracture Model for the Granite Rocks at Mizunami Underground...

... ABSTRACT: Implementing stress-sensitivity in naturally fractured reservoir flow simulation can be achieved through the use of “multipliers” that serve to modify, for example, fracture network pore volume as a function of changing reservoir pressure and fracture network transmissibility...

... 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...