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Keywords: consolidation
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Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1735
... due to the increase in the demand for minerals and metals and the mining of many low-grade ores. Mining industry faces the daunting challenge of environmental issues associated with the management of tailings. cement formulation calcium hydroxide thickness cement chemistry consolidation...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0231
... the pressures generated in the pastefill, the fill behaviour and the mechanisms of strength development (i.e. consolidation and cementation) with a view towards optimising the binder content. This article focuses on the instrumentation employed and the interpretation of the data generated during the study...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1753
... reviewed and continuous measurements (every minute) of Young's modulus and Poisson's ratio are performed on the sample from consolidation to failure, through the flowing of CO 2 -undersaturated brine. Upstream Oil & Gas co 2 Reservoir Characterization consolidation axial strain coefficient...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0813
... ABSTRACT: This study presents the feasibility of performing permeability measurement by interpretation of consolidation-induced time-dependent deformation of sample when an instant pore pressure pulse is applied. For the interpretation of measured transient behavior, a procedure to back...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0568
... ABSTRACT: Uniaxial consolidation tests were conducted on reagent-grade granular salt in dry conditions at 150 C. 2D-microscopic images, parallel to the axis of consolidation, were obtained at several stages of progressive consolidation from 15% to 3% porosity. Microstructure image analyses...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0868
... ABSTRACT: Gas permeability measurements have been made on granular samples during consolidation under hydrostatic stresses up to 40 MPa and temperatures up to 250 °C. The initial porosity of the samples prior to consolidation was as great as 0.40; depending on the test conditions and duration...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0308
... ABSTRACT: Triaxial compression tests of synthetic salt-rock are conducted to investigate microfracture development in a semibrittle polycrystalline aggregate. The salt-rock is produced from uniaxial consolidation of granular halite at 150 °C. Following consolidation, the sample is deformed...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0209
... and laser scattering particle analysis techniques. Results show how different classification approaches give different indications of sediment behavior. The compression behavior of the sediments is studied during resedimentation and by separate one-dimensional consolidation (oedometer) tests at pressures up...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0267
... to solve the flow problem. The flow solutions are then sequentially coupled with a geomechanical simulator in the computer code Fast Lagrangian Analysis of Continua (FLAC). Validations based on Terzaghi’s consolidation problems show that the new sequential coupling technique reduces simulation runtimes...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-077
... and friction angles (F') between 15° and 26°. Other testing, which included consolidation, ultrasonic (p and s wave) velocities, air permeability gave results typical of New Zealand sedimentary soft rocks with unconfined compressive strength <5 MPa. The mercury injection testing gave a mercury-air threshold...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-152
... and rock deformation. In this work, a fully coupled model is built to study EGS stimulation. In order to verify the model, comparisons between numerical and analytical solutions are performed with excellent results. Also, code-to-code comparison for a thermoelastic consolidation problem shows very good...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-261
... Abstract: Uniaxial consolidation of granular salt is carried out to study the mechanical behavior and fabric development in a material that deforms by microscopic brittle and intracrystalline-plastic processes. Dry granular salt is sieved to produce well-sorted size fractions. The granular...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-684
... samples from South Dakota. To modify sand content we mixed the mudrock samples with Brazos sand sieved to mesh size 105-300 microns. The samples vary in mineralogy as well as cation exchange capacity. flow in porous media consolidation Upstream Oil & Gas Reservoir Characterization cation...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-557
... integrity using the 50g-ton beam centrifuge, the first of its kind in Western Canada, at Geotechnical Centrifuge Experimental Research Facility (GeoCERF) at University of Alberta. Initial studies have utilized over-consolidated Speswhite kaolin block samples to mimic the caprock in centrifuge models instead...
Proceedings Papers

Paper presented at the 47th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2013
Paper Number: ARMA-2013-282
... consolidation Stavanger radial strain constant stress difference reservoir geomechanics pore pressure experiment effective stress estimate Upstream Oil & Gas variation coefficient effective stress contact area axial strain chalk Biot stress coefficient stress difference deformation...
Proceedings Papers

Paper presented at the 47th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2013
Paper Number: ARMA-2013-265
... Abstract: The analysis of the volumetric behavior and the consolidation of shales require the involved materials to be tested under high confining stresses. The paper presents the apparatuses and the techniques that have been developed recently for testing shales under high-stress conditions...
Proceedings Papers

Paper presented at the 47th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2013
Paper Number: ARMA-2013-241
... with increasing stress, permeability decreased to residual strength state. In case of sandstone permeability began to decrease, reached minima before peak stress, began to increase again and reached almost stable value under residual strength state; The permeability from consolidation to residual strength state...
Proceedings Papers

Paper presented at the 47th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2013
Paper Number: ARMA-2013-536
.... Upstream Oil & Gas velocity anisotropy Reservoir Characterization synthetic clay flow in porous media composition consolidation Fluid Dynamics pore pressure knowledge application mondol porosity effective stress evaluation shallow reservoir effective vertical stress anisotropy...
Proceedings Papers

Paper presented at the 47th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2013
Paper Number: ARMA-2013-554
... to demonstrate the power of the concept. reservoir geomechanics laboratory test consolidation pore pressure equivalent reservoir pressure experiment sandstone effective stress Reservoir Characterization loading compressibility accuracy porosity requirement stress path Upstream Oil & Gas...
Proceedings Papers

Paper presented at the 44th U.S. Rock Mechanics Symposium and 5th U.S.-Canada Rock Mechanics Symposium, June 27–30, 2010
Paper Number: ARMA-10-433
... ABSTRACT: Establishment of pore pressure equilibrium in shale is a time dependent process which is governed by shale's intrinsic properties. The extremely low permeability of shale is a key parameter involved in the consolidation process and restriction of fluid flow (undrained mechanism...

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