... ABSTRACT: In this study, 3DEC modeling in conjunction with the Discrete Fracture Networks (DFNs) technique was performed to better understand the behavior of shearing faults in a relatively large-scale direct shear test model. The DFNs explicitly generated two different geometries of the fault...

... approximated using ground-penetrating radar (GPR) surveys. LiDAR scans were performed to map the discontinuity network around the pillars, and Discrete Fracture Network (DFN) technique was implemented to simulate the joint network in the pillar’s rock mass. The behavior of the pillar with the increase in axial...

... , fully coupled hydro-mechanical model with explicit representation of the discrete fracture network (DFN). The model has been calibrated by a pressure history matching of the injection tests of the pilot well, 58-32. The preliminary simulations for the current interpretation of the DFN show...

... with the technique fractures could account for the change of mechanical of discrete fracture network (DFN) were utilized. The characteristics. DFN in rock masses was modelled in the discrete element method by using the synthetic rock mass approach (Mas 2. METHODOLOGY Ivars et al. 2011), the influence of fractures...

... project risk, provide insights into reservoir behavior, and potentially forecast production. upstream oil & gas simulation dfn renewable energy stimulation phase prediction fracture aperture natural fracture hydraulic fracturing model prediction simplification application fracture...

... condition at the locations where the methods were developed. Discrete Fracture Network (DFN) model allows inclusion of discontinuities data from site-specific geotechnical investigation stage to be stochastically quantified and used explicitly as design input. Hence, this offers a more quantifiable...

... injection into a Discrete Fracture Network. Upon revisiting the problem of self-similar fluid driven shear crack propagation on a planar fault under critically stressed and marginally pressurized regimes, we show via numerical simulations that a critically stressed DFN exhibits fast aseismic slipping path...

... ABSTRACT: High-fidelity flow and transport simulation on large discrete fracture networks (DFN) are computationally expensive. This makes uncertainty quantification studies of quantities of interest such as travel time through the network computationally intractable, since multiple runs...

... coupled with representative Discrete Fracture Networks (DFN) has been proven to provide accurate models of the actual response of a rock mass undergoing excavation. However, considering the statistical nature of DFN's, multiple simulations need to be run in order to obtain statistically significant...

... stimulation is modelled numerically to aid conceptual design of the well geometries and completions. The numerical modeling approach is based on: (a) full hydro-mechanical coupling; and (b) explicit representation of a Discrete Fracture Network (DFN). The reservoir-scale model in C has a core region of 1500...

... forecasting through reservoir simulation in shale reservoirs. In this research study, a new approach using the integrated 3D complex discrete fracture network (DFN) and hydraulic fracturing flow model has been applied as a case study to accurately evaluate hydraulic fracturing in naturally fractured shale...

... framework GEOS. We use a fully coupled thermo-hydro-mechanical (THM) model to solve the problem of fluid and heat flow, mechanics, and fracture growth on the largest scales, a model to evaluate microseismicity on a discrete fracture network (DFN), and a model to evaluate point microseismicity...

... that the orientation of the DFN is a key parameter driving the microseismic response. When hydraulic fractures intersect natural fractures at high angles, the pre-existing fractures are stimulated more and exhibit a greater microseismic response. Application of the calibrated model to optimize completion changes...

... the geomechanical models, which can then be used as an optimization tool for future hydraulic fracture treatments in similar wells. A number of sensitivity studies of model input parameters are investigated including stress anisotropy, well orientations, DFN properties, and fluid viscosities. In addition...

... will use “permeability” in a qualitative way to describe the capacity of such features to conduct fluids, although when used quantitatively they have slightly different definitions and units. flow in porous media Oda hydraulic fracturing equivalent permeability DFN directional equivalent...

... the rock mass are rarely fully connected. In practice, however, discontinuities are often assumed fully persistent due to the difficulties both in mapping and simulation of non-persistence. Discrete fracture networks (DFN) provide a rigorous and convenient tool for the simulation of joint systems within...

... discrete fracture network (DFN) and how the length and geometry of the borehole segment through which fluid is injected relative to the reservoir size and DFN orientation can affect fluid flow. This paper, through three-dimensional numerical modeling, investigates how different injection techniques can...

... upstream oil & gas loose block rock fall source trajectory rock face structural data mapping calculation dfn orientation complex reservoir rock block discrete fracture network dimension remote structural mapping realization hydraulic fracturing information structural...

... (DFNs) [1]. As these parameters change, hydraulic fracture characteristics can show significant variations, even along the same horizontal well. Figure 1 illustrates a horizontal wellbore where fracture geometry change from limited-regular to complex patterns: as stress, mechanical properties and DFN...

... of reservoirs with pre-existing fracture networks is simulated in a two-dimensional framework. A series of sensitivity studies have been performed in an initial attempt towards understanding how reservoir response to fluid injection is affected by some of the DFN characteristics and operational parameters...