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Keywords: sandstone
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Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2020, June 14–19, 2020
Paper Number: ISRM-EUROCK-2020-011
... considerations and feasibility. reservoir characterization tunnel excavation material reuse scenario eurock 2020 classification anhydrite switzerland upstream oil & gas different borehole depth qemscan structural geology classification model sandstone molasse rock mass european...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2020, June 14–19, 2020
Paper Number: ISRM-EUROCK-2020-033
... environments during the deposition phase. A deltaic formation, for example, may contain hard cemented sandstone, weak cross-bedded sequences as well as silty or clay-rich interbedding or lensing. A layered volcaniclastic sequence can contain hard strong flow layers, sandwiched within softer, weaker or altered...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-043
... the results of an experimental case study on homogeneous sandstone exposed to isotropic triaxial, and equi-biaxial or uniaxial loading regimes. The measured deformational response of this rock is compared with behavior of elastic solid materials. Finally, benefit of the experimental testing for...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-021
... hydraulic fracturing. For some planned projects we conduct the characterization of the carboniferous strata as exposed in "analogous outcrops". The geological setting for fracking is demanding, as the strata comprise strong sandstone, shale and weak coal seams. All necessary petrophysical properties will be...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-018
..., secant and average modulus. This discretion causes, as the result that one can obtain results, which differ from each other significantly, even threefold or more. The laboratory tests for Carboniferous rocks: claystones, mudstones, sandstones and coals are presented in the paper. The modulus value...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-044
...-situ state of stress. reservoir geomechanics Rock mechanics extension compression Reservoir Characterization Triaxial Testing specimen intermediate principal stress ivan jane�ek procedia engineering 191 laboratory triaxial testing sandstone stress difference stress path Upstream...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-127
... investigate the use of a low frequency GPR antenna to detect critical (large aperture) fractures inside a discontinuous heterogeneous rock mass in a sandstone quarry. The objective of using low frequency antenna is to obtain as deep a subsurface image as possible, since penetration depth is inversely...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-088
... Abstract The article deals with the use of computed X-ray radiography to visualize the development of the fracture process zone in the rock samples. For radiographic observations during the three-point bending loading, glauconitic sandstone from the Řeka quarry (sometimes also referred to as...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-011
... Resources, Daejeon, Korea M. Takahashi National Institute of Advanced Industrial Science and Technology, Tsukba, Japan ABSTRACT: The permeability for two types of sandstone, Berea sandstone and sandstone from Otway Paaratte formation, under different confining pressure are measured and porosity is...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-052
...Rock Mechanics and Rock Engineering: From the Past to the Future Ulusay et al. (Eds) © 2016 Taylor & Francis Group, London, ISBN 978-1-138-03265-1 Rigidity of sandstone at elevated temperatures Á. Török & B. Vásárhelyi Department of Engineering Geology and Geotechnics, Budapest University of...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-023
... differences in their petrologic properties (sequence from high to low average compressive strength). 2.1 Ruhr sandstone (Rst) The grayish Ruhr sandstone is well sorted and fine grained (0.4 ± 0.2 mm). Because of its essential miner- als quartz and feldspar it can be classified as an arkose. Accessory...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-135
... diffusion of solute is strongly prevented in the case of Kimashi sandstone by applying Aquo-Siloxane Method. In the case of Berea sandstone, diffusion phenomena were observed, however, it was found that the amount of diffused solute was much smaller than the sample before applying Aquo-Siloxane Method. 1...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-212
... reservoir. braathen Upstream Oil & Gas injection pressure direct shear test normal stress Reservoir Characterization storage pilot co 2 sandstone shear stress bohloli geomechanical interpretation injection test fracture horizontal stress Svalbard longyearbyen co 2 pilot site in...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-213
... ABSTRACT: The effective pressure law for the permeability of sandstone is experimentally studied by conducting Darcy's law permeability test under various confining pressure (from 14 to 58 MPa) and pore pressure (from 8 to 23 MPa). Supercritical CO 2 as a pore fluid has been adopted instead...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-025
... data of the individual publications is therefore not a straightforward task. See an example which considers three papers: 1. Paper A reports 10 UCS values and 10 E values corresponding to 10 wet specimens of sandstone. 2. Paper B reports the average UCS value and the aver- age E value for 10 wet...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-056
...-dependent wave velocities of sandstone, white schist and granite are introduced and discussed here. 1 INTRODUCTION The measurement of compressional (vp) and shear (vs) wave velocity on specimens, which are used for uni- axial and triaxial compression tests, are carried out typically for tunneling projects...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-114
..., in order to investigate anisotropy of the mode I fracture toughness of rocks, the semi-circular bend (SCB) test (Chong & Kuruppu 1984 and Kuruppu et al. 2014) was performed using a sedimentary rock called Kimachi sandstone, and two types of crystalline rock, Rustenburg granodiorite and Iksan...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-128
... thresholds of several varieties of sandstones commonly used in architectural and sculptural projects. The modulus of resilience and modulus of toughness, computed from the respective parts of the stress-strain curves, proved to have a significant correlation between resistance to weathering in the...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-180
... Characterization strength basin carboniferous basin Brazil Upstream Oil & Gas sandstone failure envelope siltstone hs ABSTRACT: The largest coal reserves in Brazil are located in the state of Rio Grande do Sul, however the South Catarinense Carboniferous Basin concentrates the largest number of...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-111
... and relatively weak rocks. Namely we investigated the Jurassic Opalinus Clay and Effingen Formation from Switzerland, as well as a Dogger siltstone (Dogger ß and γ) from the North German Basin and – for comparison reasons – also a Dogger ß sandstone from the same area. We did compressive strength...

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