[1] While permeability scaling of fractured media has been so far studied independently at the fractureand networkscales, we propose a numerical analysis of the combined effect of fracture-scale heterogeneities and the network-scale topology. The analysis is based on 2 10 discrete fracture network (DFNs) simulations performed with highly robust numerical methods. Fracture local apertures are di...

To simulate the propagation law of hydraulic fractures in deep Coal Bed Methane (CBM) reservoirs Qin-shui basin, a 3D numerical model is established using continuous-discontinuous algorithm, and discrete fracture network (DFN) included to increase its heterogeneity. The control variable method was employed study effects situ stress, random number, fracturing fluid flow viscosity on propagation....

We studied the formation and evolution mechanism of polygonal cracks on rock surfaces under cooling by modelling meso-damage mechanics, continuum mechanics thermodynamics. Factors that affect surface damage include ambient temperature, lithology difference boundary restrictions. established simulated a heterogeneous model with weak layer for three types boundaries. These were biaxial constraint...

While several studies have linked network and in-fracture scale properties to conservative transport behavior in subsurface fractured media, on reactive cases remain relatively underdeveloped. In this study, we explore the of an irreversible kinetic reaction during interaction two solute plumes, one consisting species A other B. When plumes converge, these react kinetically form a new C via $$A...

Numerous reservoirs that play a significant role in worldwide petroleum production and reserves contain fractures. Typically, the fractures must form connected network for reservoir to be classified as naturally fractured. Characterizing with focus on its fracture is crucial modeling predicting performance. To simplify solution, dual-continuum techniques are commonly employed. However, use cont...

Fluid flow modeling of naturally fractured reservoirs remains a challenge because the complex nature fracture systems controlled by various chemical and physical phenomena. A discrete network (DFN) model represents an approach to capturing relationship fractures in system. Topology connectivity aspect planes, which have fundamental role simulation geomaterials involving rock matrix. Therefore, ...

Here, laboratory tests were conducted to examine the effects of natural fracture density (NFD) on propagation hydraulic (HF), HF and (NF) interaction, formation stimulated reservoir volume (SRV). Laboratory methods proposed prepare samples with dense, medium spare discrete orthogonal networks. After conducting a true triaxial fracturing experiment synthetic blocks, experimental results analyzed...

Fractures have crucial impact on flow in reservoirs. In naturally fractured reservoirs (NFR) the fracture network alone can be the dominant factor in fluid transport. Fractures as geological discontinuities introduce a high level of complexity into the entire reservoir modeling workflow. In current practice, the geological modeling of fractures and flow simulation are considerably disconnected,...