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Keywords: creep test
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Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0337
... structural geology upstream oil & gas hydraulic fracturing reservoir characterization shear strain igneous rock creep secondary creep geological subdiscipline tensile strain evolution rock mechanic sg specimen primary creep creep test grid point hedayat plate tectonics rock type...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1127
... against laboratory creep tests, but nearly all historic creep tests have been performed at equivalent stresses of 8 MPa or higher. Creep rates at lower equivalent stresses are very slow, such that tests take months or years to run, and the tests are sensitive to small temperature perturbations (<0.1°C...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1192
... damage growth along certain directions governed by the microscopic friction law. The model is successful in capturing the time-dependent deformation of brittle rocks in terms of constant strain-rate triaxial tests at different confining pressures, axial and volumetric deformation in creep tests...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1733
... laboratory creep tests have been conducted to study the creep behaviour of different types of intact or fractured rock samples. Based on experimental data several creep models have been proposed to reproduce the creep behaviour observed empirically; however, these approaches often do not reproduce all phases...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2158
... ABSTRACT: In order to reflect effectively the temperature influence on the long-term stability of surrounding rock of deep underground cavern, the triaxial creep tests of deep hard rock under different temperatures were carried out based on an important hydropower station. According...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1214
... which should capture the creep behavior of Vaca Muerta formation. To achieve this goal, many time cycling triaxial deformation creep tests were performed over many Vaca Muerta rock samples. A phenomenological creep constitutive model from the literature such as the Power Law was tested and evaluated...
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 Health & Medicine constant stress state specimen boundary crack propagation US government grain level Upstream Oil & Gas creep test reservoir...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0028
... thermal transfer is approached by linear parallel contact model via active thermal pipes. The validation of this DEM numerical model is verified by the laboratory creep test, and the model is capable of capturing the development of micro-fractures during creep test subjected to different temperatures...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0220
... reservoir Upstream Oil & Gas shale gas dark-p sample GPa contact creep modulus heterogeneity creep test moduli strength humidity indentation test mineral Sone Zoback nanoindentation indentation creep compliance hardness ARMA 17-0220 Mechanical properties of Vaca Muerta shales from...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0453
... and therefore a creep compliance function is needed to extrapolate laboratory findings and to model long-term behavior. reservoir geomechanics Upstream Oil & Gas Reservoir Characterization complex reservoir Artificial Intelligence creep strain Prony series creep data experiment creep test...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0320
... on the TSL is known, the effective permanent support time of the TSL can be estimated by the proposed relationship. 1. INTRODUCTION metals & mining liner application creep rupture envelope thin spray-on liner dead weight creep test shotcrete design engineer Isothermal Creep Behaviour...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0917
... to the creep-induced closure of fractures. This paper reports a study on the influence of elevated temperature on the creep deformation of shale rocks. To this end, a series of multi-stage triaxial creep tests differing in stress conditions and temperature is carried out on two samples of the Mancos shale, one...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0879
... ABSTRACT: For fundamental understanding of the roof fall, this research is focused on determining the time-delayed deformation. A series of triaxial single-stage creep tests was performed on Marcellus shale. The specimens were cored parallel and perpendicular to the bedding plane. X-ray...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0876
... ABSTRACT: Results from three compressive creep tests on dried crushed salt, focused on identifying the influence of pore pressure during reconsolidation, are presented. All tests were completed under a macroscopic hydrostatic confining pressure of 30 MPa while the internal pore pressure...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-239
... represented by stiffness degradation in grain surface elements; (3) damage in both surface and joint elements. We simulate creep tests in conditions typical of Compressed Air Energy Storage. The three models capture polycrystal stiffness degradation and the initiation, propagation and coalescence of cracks...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-337
... creep rate, must be known. To date, however, only limited secondary creep test data for sylvinite and halite have been published. Additional laboratory compression creep tests results for sylvinite and halite samples from seven different potash projects worldwide were compiled in this paper...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-430
... power-law model creep structural geology long-term creep experiment creep test differential stress shale gas vertical sample experiment horizontal sample anisotropy time-dependent deformation MPa loading creep experiment creep stage deformation ARMA 16-430 A comparison of short-term...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-508
... Pierre shale creep shale onset MPa damage accumulation peak strength stress difference time-dependent deformation Wellbore Design axial strain creep test creep rupture creep rate deformation strain rate ARMA 16-508 Time-dependent deformation of Pierre Shale as determined by long...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-028
... axisymmetric extension conditions. Creep tests were performed at 38 degrees Celsius, and the axisymmetric tests were performed at ambient temperatures (22-26 degrees Celsius). The testing performed indicates that the dilation criterion is pressure and stress state dependent. It was found that as the mean...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-393
... of strain without developing structural damage of its mineral skeleton. This phenomenon can be observed in nature in the sedimentary layers intercepted by salt domes or other structures associated with the natural movement of salt. natural gas storage creep test salt cavern upstream oil & gas...

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