... reservoir geomechanics upstream oil & gas eccentricity mechanism hydraulic fracturing general use stimulation reservoir characterization multistage fracturing shear cement channel boundary void casing integrity breakout fluid pressure aramco america deformation loading pattern near...

... that the formation response to the injection is dominated by the DFN. At a pumping rate of 20 bpm for 15 minutes, sufficient increase in fluid pressure resulted in failure of some area of the DFN both in tension (opening) and shear (slip). The cases with DFN dilatancy indicate lower injection pressure. The case...

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... on assuming that (i) the fluid pressure in the slots and the cracks ahead is uniform and (ii) the peak (breakdown) pressure is the fracture initiation pressure. The model described in this paper challenges these assumptions by considering a fluid lag at the tip of the hydraulic fracture growing from the pre...

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... by the DBEM while the fluid pressure in the fracture is described via the lubrication equation and solved by the FVM. The solutions for the responses of solid and fluid are obtained simultaneously in a fully coupled way. The stress intensity factors are determined by the discontinuous displacement near...

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... hydraulic fracturing prefabricated flaw AE event fluid pressure geothermal reservoir data acquisition system international journal Upstream Oil & Gas acoustic emission initiation Einstein triaxial loading condition experiment Gonçalves da Silva Coalescence propagation...

... tests without beddings. Then, the effect of the beddings is studied. The results of the simulations are used to provide feedback to the laboratory experimental program. complex reservoir Simulation hydraulic fracturing fluid pressure aperture boundary condition mechanical property...

... fluid pressure fracture stability nf interface propagation pore pressure failure characteristic tensile hf tip interface shale reservoir HF propagation coefficient hydraulic fracture 1. INTRODUCTION Large-scale hydraulic fracturing has become the essential technology to efficiently...

... and their geometry in the heterogeneous medium and, therefore, appear to play a critical role in the interaction between fluid-driven fractures. hydraulic fracturing aperture Injection Rate fluid-driven fracture Artificial Intelligence hydraulic fracture propagation fluid pressure finite element method...

... and Cook, 1979): = c + p) (1) where t is the shear strength of the fault, c is the cohesive strength, µ is the coefficient of friction, sn is the normal stress and p is the fluid pressure acting on the fault. Thus, the increase in fluid pressure during an injection reduces the effective normal stress...

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... the fluid pressure is increased, not on the fault as a whole. This lowered critical state is dependent on the ability of the pressurized fluid to penetrate and spread along the fault. The fluid induced changes to stress along the fault will diffuse based on the fluid dynamic viscosity, fault permeability...

... ABSTRACT: This experimental study on rock salt is dedicated to the measurements of water and gas permeability under confinement and to a characterization of the poromechanical behavior. Poromechanical experiments with gas highlight the effect of an internal fluid pressure on mechanical...

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