... phase bedretto tunnel borehole reservoir characterization flow rate reactivation fracture zone reactivation pressure ARMA 23-472 Hydro-geomechanical observations during multistage hydraulic stimulation at the Bedretto Underground Laboratory, Switzerland Bröker, K., Ma, X., Gholizadeh...

... reservoir united states government modeling & simulation geological subdiscipline fractured zone natural fracture closure pore pressure permeability scenario dependency fracture zone upstream oil & gas asia government reservoir characterization iteration fractured reservoir qiuliang...

... ABSTRACT: According to the caving law of thick and hard overlying strata and the evolution characteristics of water-conducting fracture zone, comprehensive analysis of the collapse characteristics of the thick and hard overburden in the fully mechanized caving face, the information...

... used to analyze the characteristics of fracture zone. Based on the principle of critical stress fault, the mechanical activity of fracture zone was analyzed. Finally, the in-situ stress characteristics, fracture zone development and fracture zone activity of Fuling block and Barnett block were...

... and magnitude of microseismic events at the casing deformation points are observed, and the fracture surface model is established. The quantitative relationship among casing deformation, fracture zone scale and microseismic moment is analyzed by using the model. There were 9 deformation values, among which...

... perpendicular to the initial hydraulic fracture for growth of branches of secondary fractures at the tip of the initial hydraulic fracture. stress reversal regime xsite horizontal stress hydraulic fracturing depletion numerical simulation Fracture Zone fracture Bakken formation Upstream Oil...

... Reservoir Characterization hydraulic fracturing metals & mining fracture characterization rib sloughage Fracture Zone loading Upstream Oil & Gas gate entry rib fracture Longwall Gate entry fracture numerical modeling belt entry pillar abutment pressure rib fall stress level coal...

... Abstract: The paper describes a method to determine the extent of the fracture zone near the edges of tabular excavation layouts. The problem is expressed as the solution to a non-linear eikonal equation which is solved using a fast marching method applied to the vertices of square...

... of the relatively weak mudstone in the roof of the tunnel has a significant influence on the extent of failure. fracture zone mechanical property roof crack formation simulation displacement different condition upstream oil & gas joint segment reservoir geomechanics deformation reservoir...

... at one edge of a parallel-sided panel on released energy values. Upstream Oil & Gas strength parameter hydraulic fracturing energy release increment Fracture Zone Artificial Intelligence Metall parallel-sided panel implication increment seam material stability strength intercept...

... uplift pattern has been observed in the ground-deformation data. The observed uplift patterns at KB-501 and KB-503 are different, with no clear influence of deep fracture zone mechanical response. In this study we improved our modeling with TOUGH-FLAC considering inelastic deformations in the injection...

... of integration in existing geomechanical codes (FLAC3D), the speed of the calculations and the flexibility of the fracture representation. For modeling the mechanical behavior of the fracture zone the softening ubiquitous joints model was used with random strength properties for the fracture zone. We implemented...

..., the overburden pressure above the fractured zone will be redirected towards the front solid sections behind the face and the adjacent sections where the gate roads (access tunnels serving the coal face) intervening barrier pillar and unmined solid sections are located. The upward extension of the fractured zone...

... extraction are presented in this paper, which depends on the de-stressed zone and fracture zone caused by coal mining. These two zones could promote not only the gas desorption rate and the flow rate, but also could increase gas permeability. Under this condition, gas extraction along with the coal mining...

... of the tunnel and on the degree of the impact on the rock mass deformation imposed by such factors as rock mass quality, fault and fracture zones, spatial positions of discontinuity interfaces, ground water and tunnel cover depth. The following conclusions are drawn: (1) The rock mass quality is in inverse...

... that the new method of rock mass quality evaluation is effective in support design for Polish underground hard coal mines. 1. INTRODUCTION The main task for mining engineers is to ensure the stability of a working after drifting. It concerns both chambers and roadways. The appearance of fracture zones...

... fractures. In the upper portion of the flow, known as the entablature, the fracture density and number of columns is generally greater in the than in the lower portion of the flow, the colonnade, which is characterized by a smaller number of broader, larger columns. 2.2.4 Central Fracture Zone: The rock...

...Rock Mechanics for Indus.. Amadei. Kranz. Scott & Smeallie (eds) ¸ 1999 Balkema. Rotterdam. ISBN 90 5809 052 3 Characterizing fracture-zone flow using numerical f ow-log models EL. Paillet US Geological Survey, Denver, Colo., USA ABSTRACT: Water-quality monitoring and hydraulic testing in fractured...

... & Gas fracture growth zone development situ stress Reservoir Characterization fracture pattern fracture process zone development Fracture Zone process zone development hydraulic fracturing Shlyapobersky fracture initiation minimum stress reservoir geomechanics orientation network tensile...

... fractured rock block conductivity sparsely fractured rock DFN model machine learning hydraulic fracturing Fluid Dynamics model 1 Simulation correlation Dershowitz Stockholm fracture Water Resource Research packer test model 2 borehole Fracture Zone fracture model fractured rock...