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Keywords: principal stress
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Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0098
... difficulty in replicating the gas transport characteristics of coal at the laboratory scale. There is limited research in this area. Thus, in this paper, we performed a series of permeability measurements on cubic high-rank coal samples using the true-triaxial apparatus. The principal stresses and flow...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0214
... permeability fracture experimental result principal stress 1. INTRODUCTION The process of fracture initiation, propagation, coalescence, and re-bonding in host rocks is critical to the long-term performance of geologic storage facilities such as oil and gas storage and nuclear waste disposal (Zhu et al...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0222
... and the rotation of the principal stress, fracture distribution was obtained by logging data and FRACMAN numerical analysis was conducted. The results showed that: 1) two conjugate faults and fractures were recognized by FMI images and logging data, and the trends of the fractures were about NNW343...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0254
... ABSTRACT: Knowledge of the least principal stress within, above and below producing intervals is essential for determining fracturing procedures that limit vertical propagation of hydraulic fractures to the intended range of depths. To better understand the cause of varying stress magnitudes...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0268
... wellbore integrity Upstream Oil & Gas Reservoir Characterization Wellbore Design Engineering deep carbonate rock MPa laboratory experiment experimental data criterion hoek-brown criterion description method principal stress strength deformation modulus uniaxial compressive strength...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0311
... flow in porous media uniaxial compression displacement international journal tensile stress stress distribution vertical pore coal sample principal stress Authors responses to the Reviewers comments General Reply: Thanks for the reviewer's meritorious comments on our manuscript. We have...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0431
... ABSTRACT: To obtain a full characterization of subsurface stress, both principal stress magnitudes and orientations are necessary. Knowledge of principal stress orientations is particularly important to wellbore stability analysis during drilling of inclined wellbores, hydraulic fracturing...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2178
... of the intermediate principal stress, the Mogi-Coulomb criterion predicts lower values of the minimum required mud weight than does the Mohr-Coulomb criterion. Wellbore Design criterion mud weight plane bedding plane Reservoir Characterization wellbore integrity failure criteria...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1592
... stress difference amplitude breakdown pressure principal stress initiation pressure extension pressure Injection Rate Injection Rate Influence 1. INTRODUCTION The hydraulic fracturing is an important technology of oil and gas development. However, the high hydraulic fracturing accounts a large...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1555
... whereas narrow fairway is observed as stress anisotropy is increased. Also, it was observed that the oirentation of the natural fracture network with respect to the principal stresses play an important role in fracture propagation. Reservoir Characterization Upstream Oil & Gas complex...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-140
... principal stress rock sample principal stress hydraulic fracturing mechanical parameter shale content sandstone fracture morphology shaly unconsolidated sandstone reservoir propagation 1. INTRODUCTION Shaly unconsolidated sandstone reservoirs can be considered as the transition zone from...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-187
... crack length brittleness index Reservoir Characterization hydraulic fracturing injection pressure crack growth enhancement extension principal stress fracture permeability evolution Magnitude deformation in-situ stress propagation 1. BACKGROUND United States has benefited economically...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1385
... model domain objective natural fracture naushahro feroz field horizontal stress geometry fracture azimuth stimulation Chiltan coefficient operation proppant Pakistan principal stress vertical well 1. INRODUCTION In recent times, volatility has been observed in oil and gas prices which...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-432
... principal stress direction, the greater the maximum tensile stress. This work fundamentally reveals the mechanical mechanism of fracture opening and propagation of pulse hydraulic fracturing in coal rock, which can provide reference and basis for the parameters optimization design of coal rock pulse...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-467
... hydraulic fracture fracture Reservoir Characterization complex reservoir Upstream Oil & Gas natural fracture effective stress formation behavior drilling operation displacement initiation propagation principal stress effective displacement injection deformation 1. INTRODUCTION The...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-740
... Well horizontal section drilling operation collapse pressure equivalent mud density wellbore integrity Upstream Oil & Gas azimuth angle extension limit drilling mud density window density window mud density window principal stress limit length situ stress breakdown pressure well...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-674
... conditions were observed. Less face, sidewall and hangingwall damage were noted due to the good ground conditions as compared to the previous situations. Numerical modelling was also conducted to simulate Energy Rate of Release (ERR), major principal stress (sigma 1) ahead of the mining faces and simulation...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-659
... stress shadow effect elliptical fracture aperture pressurization stress shadow Upstream Oil & Gas Simulation fluid pressure principal stress Magnitude fracture pressurized fracture fracture center stress shadow magnitude Technology Conference analytical prediction stress perturbation...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-637
... provide a first order estimation of the level of shear as well as of the decrease in least principal stress below salt. We build our large strain models in the finite element program Elfen. We model salt as solid viscoplastic and sediments as poro-elastoplastic materials. Overall, our evolutionary models...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1196
... principal stress changes to the rockmass are calculated. This paper describes the effect on stress measurement when the stressmeter is installed in a bedded rockmass represented as a transverse isotropic material requiring five elastic material constants to implement. Although anisotropic analytical...

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