... rheology-modifying effects on aqueous systems, such as shear thinning behavior and high zero-shear viscosity. In this study, a preliminary investigation of the benefits of MFC in shotcrete application was done through a series of laboratory tests. Results indicate that the MFC improves the immediate...

... neuron operation viscosity numerical simulation information validation dataset Abstract For hydraulic fracture operations, fracture geometry, pumping time and pressure propagation is a concern. Numerical simulations are demanding in computational capacity and time. Artificial neural networks...

.... A numerical algorithm for hydraulic fracturing in simplified toughness dominated regime is developed and the algorithm can achieve a much higher computational efficiency compared with traditional hydro-mechanical scheme for hydraulic fracturing modeling with low fluid viscosity. A comparison using intact...

... complex reservoir reservoir characterization science upstream oil & gas numerical investigation reservoir geomechanics investigation hydraulic fracture geometry viscosity hydraulic fracture chinese academy hydraulic fracturing fracture hydraulic fracture propagation aperture...

... for a geomechanical constraint formulation to be adopted for mine schedule optimization. optimization problem Artificial Intelligence stope ore mass 13th international congress computational domain planning & scheduling schedule optimization viscosity excavation instability Montreal time series...

... compared with the ones obtained from the in-situ grout injection tests. The simulation results clearly showed that the change of the grout viscosity in time played important roles for the grout injection mechanism and the newly developed injection method was more effective and was able to inject more...

... gallery threshold coupling main parameter Reservoir Characterization modeling viscosity laboratory regularization Fernande flow in porous media underground excavation mesh dependency argillite dilation excavation gradient Harmonising Rock Engineering and the Environment Qian & Zhou...

... Dynamics aperture mechanism Reservoir Characterization drillstem/well testing field test Rock mechanics viscosity optimum specification fracture suspension injection dynamic injection theoretical curve low-permeable rock mass rock mass equation 39 Aoki, K., Mito, Y., Yamamoto, T., Date...

... including fracture pattern, in-situ stresses, reduction in joint frictional angle and cohesion, viscosity of the mud filtrate and fracture plugging. Results of numerical simulations are presented to illustrate the technique and show the influence of these factors on the extent of mud infiltration. Un des...

... in porous media time integral viscosity velocity field Fluid Dynamics concentration water permeation process Upstream Oil & Gas potassium iodide permeation process conservation Reservoir Characterization relation x-ray ct tracer rock sample Velocity distribution tomography permeation...

..., as compared with a cement grout, is the absence of particles, The penetrability of a chemical grout is thus determined solely by the viscosity and the gel time of the fluid. The gel time corresponds to the changes in the viscosity (i.e. mostly rapid increase), which can be used to control the grout...

... chemistry drilling fluid selection and formulation drilling fluids and materials effective viscosity mechanical property moduli creep rate roof rock shale-laminated siltstone compressive strength stiffness Siltstone experiment overburden rock high temperature Wellbore Design strength...

... drilling fluid property unstable cement suspension Flow property borehole Reservoir Characterization drilling fluid formulation cylinder viscosity drilling fluid chemistry drilling fluids and materials excess water cement drilling fluid selection and formulation suspension stable...

... Upstream Oil & Gas point defect creep test experimental result gabbro viscosity Nabarro poise defect secondary creep strain rate center-loaded beam experiment kumagai granite maxwell liquid unloaded beam crust creep grigg herring SYNOPSIS: Nabarro (1948) pointed...

..."; b) the rheological behaviour of granitic rocks depends on both the linear viscosity and the maximum time reqcired to still obtain creep fractures. RESUME Ce memoire represente une analyse des resultats obtenus avec une serie d'essais min'ralogiques, petrographiques, mecaniques and rheologiques...

... conductivity and directly on thermally induced flow. The latter was illustrated not to lead to the formation of convective cells but merely to cause a slight upheaval of the regional flow above the repository. The effect on intrinsic permeabili- ty and viscosity is more pronounce which is demonstrated...

..., the viscosity, and the joint width and character. The pressure gradient is due to the swelling potential, which is expressed in terms of swelling pressure. Since the extrusion requires that water is taken up, there will be an expansion which successively reduces the bulk density. The swelling pressure...

... geomechanics Handin granite ductile viscosity MPa creep deformation LECTURES / CONF~RENCES / KURZREFERATE RHEOLOGICAL PROPERTIES OF ROCKS AT HIGH TEMPERATURES Proprletes rheoloqlques des roches a haute temperature Rheologische Gesteinseigenschaften bei hohen Temperaturen John Handin and Neville...

... Summary The paper presents some data on the consolidation of fissured rock masses using furfurol-based polymer materials. Some formulations of grouts are given. The studies performed resulted in developing injection materials which, when fresh, have a viscosity equal to that of water...