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Keywords: differential stress
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Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1706
... the relationship between creep strain and time in the experiment, the creep law of shale rock can be obtained. The strain rate is mainly affected by differential stress and temperature. It can be seen from the results that at 110 °C, the shale creep of Chang-7 reservoir exhibits steady-state creep behavior within...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0254
... propagation constitutive parameter deviator stress vertical hydraulic fracture propagation fracture propagation core sample experimental data creep experiment fracturing materials Zoback stress measurement lateral strain complex reservoir stress magnitude boundary condition differential stress...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0362
... zone experiment hydraulic fracturing accuracy prediction notch interaction differential stress fracture friction angle Artificial Intelligence fracture interaction algorithm approach angle dataset geometry hydraulic fracture architecture 1. INTRODUCTION In recent years...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1826
... and pressure dependent mechanical responses of the specimen under stresses up to 50 MPa of confining and 60 MPa of differential stress. Young's modulus and Poisson's ratio of the specimen under different stress conditions are reported in the paper. Within the elastic region, the Young's modulus increased...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2079
... of the Zechstein evaporites overlying Rotliegend reservoirs in the Northwestern Europe. Results showed that the salt creep largely depends on the salt properties, differential stress and in-situ temperature. Estimated closure times of a reamed interval, for the maximum underbalance, were in the range of a few...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1951
... MPa stress ratio radial water jet drill diameter differential stress breakout excavation Reservoir Characterization hole-profile geometry nozzle in-situ stress strength borehole stability tangential stress stress field 1. INTRODUCTION Radial Water-jet Drilling (RJD) uses the power...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-984
... is a sedimentary evaporitic rock with a very low permeability and porosity, and is characterized by having a high thermal conductivity (salt is a very good conductor of heat [15 When salt deposits undergo differential stress conditions over a geological time scale, salt formations deform plastically or creep due...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-106
... of the rocks and the corresponding stress state. reservoir geomechanics approximation deviation coefficient hydraulic fracturing volumetric strain radial stress differential stress experimental result fraction Upstream Oil & Gas Reservoir Characterization Rock mechanics stress state...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-619
... international journal laboratory breakout differential stress fracture Zoback shear fracture experiment peak stress deformation 1. INTRODUCTION In subsurface engineering applications, a knowledge of the magnitude and orientation of the in situ stress state is crucial to the success of the project...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-637
... ABSTRACT: We use an evolutionary geomechanical model to study stress and deformation in sediments during the emplacement of a frontal-rolling salt sheet. We show that overturned-roof sediments develop high differential stresses and plastic strains. We illustrate that these high plastic...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-297
... differential stress continuous injection injectivity Injection Rate CHF injection 1. INTRODUCTION Cyclic hydraulic fracturing (CHF) with water injection is suggested to reduce induced seismicity and mitigate larger magnitude events compared to conventional HF with continuous injection (Zang et al...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-461
.... Finally, we concluded that microscopy is an effective technique for micromechanical analysis of rocks. Reservoir Characterization reservoir geomechanics Upstream Oil & Gas reach tertiary creep stage x-ray μ-ct scan tertiary creep stage average crack intensity differential stress shale...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-977
... and heated samples underwent stress-stepping creep experiments under 30 MPa confining pressure and up to 60 MPa of axial differential stress. One ambient and one heat-treated granite were failed at constant strain rates To evaluate the impact of microfractures on short-term strength. Ambient short-term...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1047
... that the viscosity contrasts between salt and stringer strongly influence the internal structure of salt basin. Reservoir Characterization talbot structural geology salt tectonic wavelength Sensitivity Study viscosity contrast central part differential stress internal structure evolution urai...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0095
... initiation MPa reservoir geomechanics Laboratory Observation hydraulic fracture growth injection source injection scheme Upstream Oil & Gas fractured specimen fluid injection source differential stress propagation fracture Reservoir Characterization pore pressure experiment specimen far...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0443
... experiment reservoir geomechanics creep response axial pressure step Faulkner creep strain ductile behavior lateral direction Upstream Oil & Gas differential stress step strain response differential stress Magnitude Shale gas Reservoir Rock deformation damage zone 1. INTRODUCTION...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0227
... flow in porous media Fluid Dynamics geothermal reservoir injection pressure control mode permeability evolution flow rate injection-driven shear test differential stress dilation MPa hydraulic fracturing flow test stimulation shear slip sample sw fracture granite shear test Ghassemi...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0312
... clay rich shales appear to creep more at high pressures and show creep-softening behavior. 1. INTRODUCTION structural geology West Texas Zoback differential stress complex reservoir clay-rich shale Texas experiment MPa fracture shale gas orientation shale Midland Basin Permian...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-038
..., injection rate, fracture spacing, differential stress ( S Hmax - S hmin ), and Young's modulus on simultaneous three-fracture propagation by employing an in-house developed fracture propagation model (XFRAC). The results demonstrated that increasing flow viscosity increases the difference of flow rate...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-120
... differential stress. Unload/reload loops were not as systematic as with hydrostatic and uniaxial tests with the reason being it was unknown what value differential stress would achieve before a breach in the sample jacket and the desire was to achieve as much axial strain/stress as possible. The minimum number...

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