.... Furthermore, compared with the traditional DFN model, the texture-based DFN model has an excellent restoration of natural fractures in orientation, roughness, fluctuation, aperture, density, and connectivity. Therefore, the texture-based DFN method can provide a new idea for constructing 3D DFN models. 1...

... principal fractures and branch fractures, and fracture aperture degree on the calcium carbonate precipitation were investigated. The results showed that under the condition of two branch fractures, when 1≤Re≤5, there is a weak nonlinear relationship between flow rate (Ra) and Re, where Ra is unaffected...

... hydraulic fracturing society iop publishing iop conf fracture reservoir characterization inrush disaster engineering environmental science 861 displacement geological subdiscipline aperture inrush conference groundwater reservoir geomechanics deformation tunnel excavation boundary 11th...

... phase. However, relative permeability is also influenced by the aperture distribution of the fracture. In this study, visualized two-phase (water-nitrogen) flow experiments were conducted in one pair of fracture replicas, which includes a smooth replica and a plaster replica so that the flow structures...

... geologist flow in porous media permeability fracture reservoir characterization fluid dynamics hydraulic fracturing geological subdiscipline geology reservoir geomechanics simulator aperture evolution fracture aperture society iop publishing iop conf cavity free-face dissolution...

... in the fracture, but there is also the problem of excessive calculation. In this paper, the fracture aperture spatial data is substituted into the local cubic law as an aperture function to form a numerical calculation method for seepage in rough rock fractures, namely, the aperture function method(AFM). After...

.... A total of 130 cracks in the 19 statistical windows were located predominantly in the lower part of the mountain. In addition, 15 collapses occurred and were mostly in the upper part of the mountain. The crack locations with different filling types were concentrated. Further, the crack apertures were...

... of hydraulic fracturing, a quick-test device used in boreholes with an aperture of 31mm was developed to measure the in situ stress. An inversion software was programmed based on the multiple linear regression method to obtain the stress field. Lastly, three engineering cases were presented to introduce...

... fluid modeling equation of state hydraulic fracturing Upstream Oil & Gas Modeling & Simulation neural network roughness fracture network discrete fracture network heterogeneous aperture distribution aperture heterogeneity fluid flow DFN model isrm international symposium...

... Abstract Many flow models have been developed for rock fractures with complex void geometries. These models are mostly based on the Cubic Law assumption that the flow rate is linearly related to the pressure gradient and the cube of fracture aperture. Very few models account for the non...

... fracture-matrix system, shown in Fig. 1. L is the length of fracture and 2B is the aperture. The cement grout is injected with a constant pressure P1, which displaces the groundwater that has the in situ pressure P2. The pressure field along the fracture causes rock matrix deformation referred...

... in porous media fault slip pressure distribution Simulation interface element enhanced recovery Fluid Dynamics injection pressure tough-flac simulator hydraulic aperture Fault Zone water injection Reservoir Characterization waterflooding aperture isrm international symposium asian rock...

... radioactive waste and anthropogenic CO2, and the enhanced geothermal system (EGS). In the deep subsurface, the fluid flow behavior often depends on the hydraulic properties of the rock fractures (i.e., permeability and aperture) and the spatial distribution of the fracture network. It is well known...

..., both sites had good sealing quality results. In addition, the Swedish design method seems to be applicable to MIU-300m-niche even with the difference in the fracture aperture distribution in each site. Furthermore, the water inflow in a borehole at MIU-300m-niche has gradually decreased during...

... Institute, AIST, Koriyama, Japan * [email protected] (corresponding amail) Abstract The present study evaluates aperture distributions and fluid flow characteristics for variously sized laboratory scale granite fractures under confining stress. As a significant result, the contact area...

... with the Reynolds number. The future work would focus on the fluid flow redistribution in fracture networks based on field mapping data, in order to thoroughly investigate the effects of intersections on the flow and mass transport behaviors of fractured rock masses. production logging aperture production...

... permeability air-tightness evaluation Reservoir Characterization Upstream Oil & Gas cavern okazaki maejima fracture permeability natural gas storage aperture air-tightness test hydro-mechanical coupling analysis method capillary pressure 8th Asian Rock Mechanics Symposium ARMS8 14-16...

.... It is observed that near the depths of relatively low stress, natural fractures and faults with wide apertures (possibly weak friction) are abundant, and near those of relatively high stress, those wide discontinuities are scarce. In particular, the wide fractures and faults are oriented predominantly...

... aperture tensile crack Sapporo fluid viscosity particle model 8th Asian Rock Mechanics Symposium ARMS8 14-16 October 2014, Sapporo, Japan Study on Hydraulic Fracturing Evolution under Various Fluid Viscosity and Injection Rate J. JUNG, C. HEO and S. JEON* Seoul National University, Seoul, Korea...

...8th Asian Rock Mechanics Symposium ARMS8 14-16 October 2014, Sapporo, Japan Determination of aperture characteristics and hydraulic conductivity of fracture set using core laboratory tests Shang-Shu Zhana* , Zeng-Rax Tenga , Jing-Han Lina , Tai-Tien Wanga and Tsan-Hwei Huangb a National Taipei...