... upstream oil & gas concentration flow in porous media carbonate reservoir acid injection rate acid concentration acidizing process equation of state fluid dynamics activation energy reaction temperature continuum model diffusion coefficient acid solution permeability acid...

... a discontinuity and stress may not be fully understood. For example, changing acting across the discontinuity, dilation and shear slip can injection rate could be expected to result in either an a) Hydraulic Fracture Model b) Hydraulic Fracture/Fault Model shmin >Volume Partitioning into Fault Coupled...

... pressure-time and acoustic emissions data, we observed excellent match between simulated and observed wellbore pressures, fracture radiuses and entering uxes over time. Second, on LB2 block, we studied the fracture behavior using two one-cluster stages (with different injection rates) with multiple...

... hydraulic fracturing mechanism tensile reservoir characterization acoustic emission experiment injection rate matrix entire experiment gypsum fluid diffusivity upstream oil & gas ae event specimen geophysical research gonçalves da silva cloud source mechanism ABSTRACT...

... monitoring reservoir characterization reservoir surveillance reservoir geomechanics wellbore design production control upstream oil & gas gauge length injection well injection rate fracture strain rate hydraulic fracturing geomechanical response axial displacement coefficient evolution...

... increasing saline aquifers are abundantly present in sedimentary CO2 injection rates (e.g. Sleipner of Norway, Illinois basins, possess huge storage capacity, and offer Basin Decatur of USA, Quest and Weyburn of Canada); immediate availability for CO2 storage (IPCC 2005). The such actions would potentially...

... the near-cavity region. Simulation results show that higher solid particle concentration promotes fractures at lower injection rates, in agreement with expectations. The injection of suspended solid particles can generate external and internal regions of plugged particles, which dramatically reduce...

... fracture opening as the predominant mechanism of hydraulic fracture propagation. This study involved the hydraulic fracturing of true triaxially loaded low permeability crystalline rock cubes using a relatively high viscosity gear oil at different injection rates. Real-time acoustic emission monitoring...

... of the hydraulic fracture. The tensile-to-shear intermodal failure ratio is introduced to quantify the balance between tensile and shear effects on the interacting fractures. The effects of fracturing fluid viscosity and injection rate on the degree of tensile (mode I) failure, shear (modes II and III) failure...

... drilling operation desroch closure stress building block injection rate information borehole stress-measurement campaign fracture protocol fracture closure tensile strength ARMA 21 1928 Stress-Measurement Campaign in Scientific Deep Boreholes: from Planning to Interpretation Desroches, J...

... injection rate are studied. The study shows that the carved carbonate rock sample has good consistency with the original natural fracture surface. Acid has the effect of smoothing the high points and enlarging the valleys or deeper zones on the rough fracture surfaces. Initial roughness causes non-uniform...

... on heterogeneous samples when injection rates and fluid viscosities were varied. Specifically, slow injection of low-viscosity fluids results in diffusion-dominated injection. Injection of medium-viscosity fluids at a moderate rate leads to hydraulic fracture branching. Further increase of both factors causes...

..., injection rate, injection temperature, fracture network morphology was discussed. Results indicate that at the early stage, the interconnected large-scale fractures around wellbore dominate the mass and heat transport. Some scattered small-scale fractures contribute to uniformly propelling the cooling...

... ABSTRACT: Laboratory fracturing with variable injection rate was performed on natural shale specimens containing multiple bedding planes (BPs). The influence of injection rate on hydraulic fracture (HF) propagation and stimulated reservoir volume (SRV) was analyzed by monitoring dynamic...

.... Although the effect of layered geomaterials in single fluid-driven fractures has been thoroughly discussed in previous studies, their effect on multiple simultaneous fractures is not well understood. In this study, the effect of the layered media, fracture intervals, injection rate and viscosity...

... transfer and elastoplastic deformation of the formation rock. Both conduction and convection of heat are considered in the model to honor the fact that heavy oil reservoirs are usually of high permeability. Effects of formation permeability, injection rate, injection temperature as well as wellbore...

... recovery hydrogel grain viscosity fluid flow cavity closing time injection fluid propagation Injection Rate cavity poroelastic deformation propagation two-phase fluid flow 1. INTRODUCTION AND BACKGROUND The interaction between a fluid and solid structure during the fluid flow in porous...

.... Reservoir Characterization waterflooding novel true triaxial apparatus anisotropic stress condition enhanced recovery Simulation specimen hydraulic fracturing borehole MPa reservoir geomechanics Upstream Oil & Gas fracture initiation room temperature Injection Rate Water Injectivity rock...

... Injection Rate equation fracture propagation fracture asymptotic solution ARMA 19-2023 Fracture Propagation Induced by Water Injection in Poorly Consolidated Rocks Gao, Y., Hakobyan, Y., and Detournay, E. Department of Civil, Environmental, and Geo- Engineering, University of Minnesota, U.S.A...

... and chelating acids with different acid-rock contact times were tested to analyze the effects of acid type and acid-rock contact time on the conductivity. Next, the effect of acid injection rate on the conductivity was also investigated. Finally, long-term conductivity was measured up to 168 hours to analyze...