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Keywords: shear displacement
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Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1124
... predictive estimation of fracture permeability after slip. The proposed relations link fracture length, shear displacement, fracture apertures, hydraulic apertures, and fracture permeability. We consider both fracture creation and the re-activation of existing fractures that have been infilled by minerals...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1323
.... Although the shear displacement of fracture surfaces could improve conductivity, shear fractures still require proppants to ensure high and stable conductivity under high closure stress. As the proppant concentration increases, the roughness impact is reduced, and the fracture conductivity is dominated...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1566
..., these strength results are likely an upper bound of the interface shear strength in bedded salt deposits. The results of this first phase of direct shear testing are summarized in Sobolik et al., 2019. displacement normal load direct shear test shear displacement core analysis test specimen potash...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1436
... representative transducer specimen precursor pyrak-nolte artificial intelligence seismic precursor direct shear experiment shear displacement purdue university lyle school transducer ARMA 21 1436 Transmitted, Reflected, and Converted Modes of Seismic Precursors to Shear Failure of Rock...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0040
... specimen shear strength canada halite-clay 506 laboratory shear stress stiffness residual test direct shear machine normal stiffness carlsbad halite-clay 3 0 shear displacement interface canada halite-clay 507 1. INTRODUCTION Extensive collaborations between American and German salt...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1785
... Artificial Intelligence Upstream Oil & Gas subsurface storage bedding secondary fracture sediment deformation sandstone computed tomography transmissivity deformation national energy technology laboratory lithology hydraulic fracturing shale shear displacement Rock Mech Mining Sci 1...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2118
... to a residual strength after a threshold shear displacement; (2) these rougher samples also exhibit greater slip stability due to a high degree of asperity wear and resultant production of wear products; (3) long-term suppression of permeability is observed with rougher fractures, which is plausibly due...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-650
... and materials uncoated quartz drilling fluid selection and formulation drilling fluid formulation strength quartz show shear displacement evolution goethite-coated quartz quartz stability shear strength alteration permeability evolution hematite-coated quartz drilling fluid chemistry drilling...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-220
... to gentler ones. Based on the results of experimental and numerical tests, an estimation method for shear displacement at yielding strength of rough joints was proposed and verified. Our findings could provide insights into the shear stiffness evolution during shearing and facilitate better understanding...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-385
... loading specimen strength rock mass thermal equilibrium discontinuity behavior heating constant axial strain shear stress axial load axial strain shear displacement shear strength mechanics deformation 1. INTRODUCTION Advancements in engineering capability have led to structures being...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-395
... boundary condition specimen shear displacement stress path stiffness 1. INTRODUCTION Rock strength characteristics are typically determined using a suite of tests, including: uniaxial compressive strength, indirect tensile strength, ultrasonic pulse velocity, and rock direct shear tests on both...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1239
.... This helps to explain observations of induced seismicity below the formation targeted by hydraulic fracturing. Reservoir Characterization fault slip displacement British Columbia different stiffness shear displacement numerical investigation stress drop injection Upstream Oil & Gas...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-999
... fluid displacement anhydrite specimen shear displacement permeability Upstream Oil & Gas Rock mechanics international journal MPa shear stress 1. INTRODUCTION Fractures can provide fast fluid flow paths through rocks relative to the surrounding rock matrix (Zoback, 2007). In the field...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-022
.... Reservoir Characterization choubey Simulation shear displacement Wellbore Design Barton stigsson shear test Upstream Oil & Gas criterion synthetic profile Ma Ivar numerical shear test fracture joint profile rock fracture reservoir geomechanics strength rock joint shear strength...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-063
.... Furthermore, higher injection pressure seems to enhance fault transmissibility, probably due to additional micro-fracturing. fault reactivation Reservoir Characterization acoustic emission fracture network experiment injection pressure Earthquake transmissibility shear displacement giwelli...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0717
... created fractures as a function of stress/depth using specimens of carbonate-rich Marcellus Shale. Applied confining stress ranged from 2 to 30 MPa, specimens were 25 mm diameter and 25 mm length, shearing displacement of at least 2 mm was imposed, and measured permeability ranged between 10 -3 and 10 4...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0845
... and the numerical modeling of the compression joint normal test, shows the accuracy of this new model. The second shortcoming occurs due to a lack of an updating procedure in the PFC software related to the contact conditions of the particles that lie around the intended joint plane during high shear displacements...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0946
... stresses. The LDMDS test procedure minimizes initial shear displacement and corresponding specimen surface damage, allowing the specimen to more closely retain its original asperity and strength profile as observed via undamaged single-stage testing. Replicas of a granitic rock joint (Specimen M3) were...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0552
... using the Discrete Element Method (DEM) through the software UDEC (Itasca, 2011). Failure mechanisms were observed plotting maximum shear displacement values in discontinuities. Sensitivity analyses were carried out in order to determine most sensitive parameters in relation to failure conditions. 1...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-589
... Oil & Gas fault orientation hydraulic plane slippage event magnitude plane hydraulic fracturing Injection point microseismic event shear displacement temporal evolution multistage fracturing Simulation hydraulic fracture base case fault plane seismicity injection Magnitude...

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