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Keywords: interface
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Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0190
... acoustic emission (AE) monitoring, and detailed pre- and post-test micro-CT imaging of the samples. It has been used to characterize the strength of interface samples from two NF. The micro-CT imaging of the samples and measured strength clearly show the porous material strength determines the failure...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0159
... researchers have studied the cement displacement process caused by casing eccentricity. However, the wellbore stress distribution that caused by casing eccentricity is seldom studied. In this paper, we used an equivalent perturbed domain solution to calculate the stress on the casing-cement interface. Failure...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0168
.... geologist fracture china government hydraulic fracture upstream oil & gas asia government reservoir geomechanics injection rate geology complex reservoir geological subdiscipline specimen interaction interface propagation hydraulic fracture crossing natural fracture criterion experiment...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0275
..., and flexibility in shape. Through experimentation, the optimal interface was found to be between an aluminum surface roughened by 120 grit sandpaper and cured plaster, which provided consistent strength with a friction angle of 42.2 degrees and cohesion of 0.18 MPa. This work helps validate the concept...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0288
... characterization mpa axial stress geology igneous rock stress memory strain difference granite unload specimen inflection interface cyclic loading lulu cycle peak stress subsequent cycle deformation rate analysis loading cycle ambient condition strain gauge ARMA 23 0288 Work Hardening...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0434
... intensity l-panel strain energy organic-rich rock united states government reservoir geomechanics seismic potential seismic activity seismic event geological subdiscipline variation available energy h-panel interface discontinuity ess value shear stress seismicity coal seam shear-type...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0464
... in boreholes with slightly smaller diameter than the diameter of the retainers, the radial force is generated by the compression of the anchor by the drill wall, ensuring its efficiency by friction in this contact interface. In order to increase the maximum load capacity of Split Sets, some mining companies...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0525
... 2 (Bai et al., 2016; Choi et al., 2013). The sealing integrity of cement sheath consists of two main components: the cement stone sealing ability and the interface sealing ability. Most previous studies focused on the failure analysis of the cement sheath interface (Feng et al., 2017; Gu et al...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0711
... characterization coefficient geologist united states government lecampion hydraulic fracturing containment leak-off coefficient reservoir geomechanics breakthrough toughness arrest mechanism buoyant fracture simulation interface transition mechanism propagation stress jump heterogeneity...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0708
... geologist interface mudrock sedimentary rock upstream oil & gas structural geology hydraulic fracturing argentina government mudstone fracture characterization discontinuity europe government geological subdiscipline rock type reservoir geomechanics fracture fluid dynamics...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0604
...-prager criterion linear drucker-prager criterion mesh density reservoir geomechanics criterion strength drucker-prager criteria hyperbolic dp criterion cement property geological subdiscipline criteria interface cement sheath integrity rock mechanic geomechanics symposium cement stone dp...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0721
... on the case of a constant friction coefficient and account for permeability changes associated with fracture opening. We use a fully coupled implicit numerical scheme for the solution of this non-linear hydro-mechanical problem. Notably, the frictional interface behavior is modeled using an elastoplastic...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0030
...) The closer the perforation was to the lithological interface, the easier it was for hydraulic fractures to propagate through the interface. (2) Direct fracturing of thick coal seams and indirect connection of thin coal seams is advantageous for multi-gas co-production. Shortening the perforation length...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0836
... and/or frictional interfaces. Two parallel inclusions, consisting of four frictional interfaces, were embedded at the center of the SCB specimen, ahead of the notch tip with various approach angles and spacings. A total of 36 samples were prepared to study the interaction of an opening mode fracture with frictional...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0037
... the longwall abutment pillar are one order of magnitude higher than those measured under deep cover. Longwall-induced horizontal displacements occur along weak-to-strong rock interfaces; the sharper the bending stiffness contrast across the interfaces, the larger the longwall-induced horizontal displacements...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0082
... horizontal displacement pittsburgh coal seam displacement interface well pad shale ga well deep cover longwall panel united states government casing design reservoir characterization gas well relative horizontal displacement coal seam horizon caliper survey ARMA 23 82 A Case Study of Shale...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0863
... oklahoma tensile failure interface numerical determination loading gap size defective zone cement property integrity zhang propagated geothermal well operation thermal loading ARMA 23 863 Experimental and numerical determination of cement casing microannulus Khizar Abid University...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0701
... geomechanics stress distribution petroleum science climate change khalifeh mechanical property young europe government cement property geothermal well engineering interface temperature increase cement chemistry wellbore integrity reservoir characterization granite-based geopolymer cement...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0799
... filling the fracture interface are greater than the stress within the thin fluid film at top and both inert fracture surfaces and hence the crystals would grow in the vertical direction. Similar observations are made by Phillips (1974) where gypsum veins formed by a mechanism of tensile strain...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0760
... ABSTRACT This study presents a novel approach to Physics Informed Neural Networks (PINNs) called Variational Interface PINNs (VI-PINNs) for modeling physical systems with material interfaces. In conventional PINNs, a loss functional obtained from the residual of the strong form of governing...

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