... distributions. In this paper, we perform a complete analysis of 3D fracture intersections distribution of various DFN models and investigate how it can be related to the 2D distribution of intersecting virtual outcrops. The DFN models are either fully random (with no correlation between fractures) or defined...

... of not more than 200 words; illustrations may not be copied. The abstract must contain conspicuous acknowledgement of where and by whom the paper was presented. ABSTRACT: DFN modelling has been widely applied to the design of rock excavations in the civil engineering space. The paper explores design solutions...

... the subjectivity in the selection of DFN models used in numerical analysis and hence lead to more representative modelling/design. Reservoir Characterization Upstream Oil & Gas fracture trace reservoir geomechanics DFN model fracture intersection DFN rock mass strength complex reservoir...

... ABSTRACT: It has been observed that groundwater flow through fractures is channelized due to variations in fracture aperture, fracture roughness and different fracture intersections. Nevertheless, a common practice in DFN modelling is to model each fracture as hydraulically homogeneous, which...

... ABSTRACT: The challenges of integrating a discrete fracture network (DFN) model with a geomechanical analysis increase with the complexity of the DFN model, since a DFN model can include thousands of fractures and result in very complex configurations. Although it is now relatively easy...

... ABSTRACT: Discrete Fracture Network (DFN) models have advanced considerably, yet challenges remain for capturing attribute variation and uncertainty across scales. We highlight problems using examples from shale hydrocarbon reservoirs, and propose methods to tackle them. Adequate treatment...

... ABSTRACT: One of the important applications of DFN models is the quantification of rock mass quality through rock mass classification systems such as Geological Strength Index (GSI, Hoek et al., 1995). For instance, Cai et al. (2004) presented a quantitative method to assist in the use...

... by proposing a simple solution for modeling fluid flow through fractures in two and three-dimensional DFN models implemented in an open source package, built on a new hybrid mesh-pipe model. It is demonstrated that the proposed method is accurate and efficient. The application of our proposed method...

... the intact rock modulus, the typical fracture stiffness and the DFN size distribution. Beyond the scaling issue we quantify the resulting level of anisotropy. DFN model Mining Science shear displacement Upstream Oil & Gas variation application hydraulic fracturing displacement size...

... ABSTRACT MoFrac discrete fracture network (DFN) modeling software generates fracture network simulations with deterministic fractures constrained to known locations, and stochastic fractures conditioned to input data. A deterministic fracture network is generated through the modeling...

... Upstream Oil & Gas natural fracture complex reservoir aperture hydraulic fracturing orientation stimulation bearinger simulator fracture network discrete fracture network utilize discrete fracture network permeability DFN model propagation model well pad boundary fracture...

..., strongly relies on our ability to properly describe the fracture network characteristics. A usual method is to define 3D Discrete Fracture Network (DFN) models to represent the geological environment. This consists in combining various data on fracture geometrical properties (density, size and orientation...

... fault zones in the low permeability crystalline rocks at Olkiluoto; an understanding of the flow and transport processes in these features are an essential part of assessing long-term safety of the repository. A discrete fracture network (DFN) modelling methodology has been developed to provide...

... ABSTRACT: Accurate modeling of naturally fracture reservoirs requires a comprehensive understanding of fracture network geometry in three-dimensional space. This is a significant challenge to the realistic construction of discrete fracture network (DFN) models since these reservoirs are often...

.... The results showed that the role of fracture surface roughness in macroscopic fluid flow and heat transfer in fractured rocks is critical, in terms of reducing total flow rate and increasing thermal breakthrough time. Macroscopic fluid flow and heat transfer in different realizations of DFN models can...

... in the SNFD2017 report. 2. DFN MODEL CHARACTERIZATION At present, there is no candidate site has been proposed and no systematic detailed field investigation has been conducted in Taiwan. The reference case is just a hypothetical platform for technical development. There is a data list we called Table-II...

...1. INTRODUCTION Stochastic fracture modelling with Discrete Fracture Networks (DNFs) is a well-developed technique in some fields, particularly for fluid flow through fractured systems (Dershowitz, 1984). DFN modelling and its applications to geotechnical engineering has begun to be explored...

... process. This paper presents the results of a case study in an open pit mine where an Unmanned Aerial Vehicle (UAV) was used for mapping of the pit walls before blast. Pit wall mapping and aerial data was used as input to generate a 3D Discrete Fracture Network (DFN) model of the rock mass and to estimate...

... of pressure build up test analysis as diagnostic tool to optimize re-treatment time. To achieve this goal a highly fractured heavy oil reservoir going through polymer injection is modeled using discrete fracture network (DFN) modelling approach where it is used as a tool for providing fracture properties...

... technique, a conceptual DFN-DEM multi-scale modeling approach is proposed. Discrete fracture networks (DFNs) are generated using MoFrac – a newly developed DFN generation tool. For a given volume of jointed rock mass, multi-scale DFN models are constructed according to the hierarchical order of fracture...