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Keywords: limestone
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Proceedings Papers

Paper presented at the 14th ISRM Congress, September 13–18, 2019
Paper Number: ISRM-14CONGRESS-2019-402
... out stability analysis and to establish a proper mud window during drilling and production operations. In the pre-salt context, lost circulation zones are commonly associated with fractured and vugular zones, ordinary features in the Aptian limestone. Due to that, in most cases the mud weight...
Proceedings Papers

Paper presented at the 14th ISRM Congress, September 13–18, 2019
Paper Number: ISRM-14CONGRESS-2019-429
... and geotechnical in situ measurements carried out in two different French sites (a gneissic rocky slope and a limestone cliff) are examine. In fact, during periods without triggering factors such as rainfall event, seismic activity or freeze-thaw, both sites are still subjected to periodic rockfalls. The sites...
Proceedings Papers

Paper presented at the 14th ISRM Congress, September 13–18, 2019
Paper Number: ISRM-14CONGRESS-2019-382
... porosity lithology relation investigation geomechanical investigation young modulus aquifer limestone geothermal aquifer well logging reservoir characterization molasse basin dolostone dependency bavarian molasse basin potten correlation equation deviation Rock Mechanics for Natural...
Proceedings Papers

Paper presented at the 14th ISRM Congress, September 13–18, 2019
Paper Number: ISRM-14CONGRESS-2019-395
..., a collaboration between CSIRO and Petrobras, developed from 2011 to 2013. The project aimed at evaluating petrophysics, geophysics and geomechanics aspects of carbonate reservoirs from the Campos basin. moduli elastic moduli loading mpa structural geology calculation plastic deformation limestone...
Proceedings Papers

Paper presented at the 14th ISRM Congress, September 13–18, 2019
Paper Number: ISRM-14CONGRESS-2019-339
... and cooling process cause thermal stresses around the hole. Also, the maximum value of thermo-mechanical stress exceeds the strength of the limestone rock and consequently, the formation of cracks and fractures in the wall of the hole are unavoidable. 1 Instructions Laser perforating is a new scientific...
Proceedings Papers

Paper presented at the 14th ISRM Congress, September 13–18, 2019
Paper Number: ISRM-14CONGRESS-2019-120
... experimental device to investigate the heaviour of rocks under shock loads and they presents the outcomes of this experimental study and discuss their implications in the field of rock dynamics. The rocks tested are tuff, limestone, granite, marble, gneiss, porphyrite, ranging from soft rocks to hard rocks...
Proceedings Papers

Paper presented at the 14th ISRM Congress, September 13–18, 2019
Paper Number: ISRM-14CONGRESS-2019-133
... geomechanics rock mechanic uniaxial compression loading propagation figure 4 ghazvinian reservoir characterization fracture variation limestone Rock Mechanics for Natural Resources and Infrastructure Development Fontoura, Rocca & Pavón Mendoza (Eds) © 2020 ISRM, ISBN 978-0-367-42284-4 Brittleness...
Proceedings Papers

Paper presented at the 14th ISRM Congress, September 13–18, 2019
Paper Number: ISRM-14CONGRESS-2019-280
... properties of highly porous limestone in case of dry, water saturated and frozen conditions (−20 °C). For this purpose, 35 cylindrical highly porous limestones specimens were taken and preselected based on their densities. The laboratory tests included firstly non-destructive tests, such as the measurements...
Proceedings Papers

Paper presented at the 14th ISRM Congress, September 13–18, 2019
Paper Number: ISRM-14CONGRESS-2019-014
... in the sinking condition is ensured through a combination of artificial ground freezing and primary ground support. The focus of this paper is the area of the shaft at a depth of 700 m to 900m composed of limestone, mudstone, and halite which had a primary support of rock bolts and mesh in a shaft diameter of ~8...
Proceedings Papers

Paper presented at the 14th ISRM Congress, September 13–18, 2019
Paper Number: ISRM-14CONGRESS-2019-019
... Abstract In the south-west part of Slovenia runs a major thrust fault, which divides limestone and flysch strata known as the Karst Edge. Karst Edge is seen at the ground surface as a major natural feature consisting of a 50km long and some 30m high vertical limestone cliff that dominate...
Proceedings Papers

Paper presented at the 14th ISRM Congress, September 13–18, 2019
Paper Number: ISRM-14CONGRESS-2019-053
...). This work presents the context of the studied area, the applied method, the collection and interpretation of the data and finally, the results of the engineering application in the tunnel. upstream oil & gas tunnel construction reservoir characterization assessment limestone jurassic...
Proceedings Papers

Paper presented at the 14th ISRM Congress, September 13–18, 2019
Paper Number: ISRM-14CONGRESS-2019-216
... Abstract In order to contribute to efforts in the oil industry to define correlations between elastic parameter obtained both from static and dynamic methods, this paper presents results of laboratory experimental tests performed on Indiana Limestone rock samples. For this purpose, laboratory...
Proceedings Papers

Paper presented at the 14th ISRM Congress, September 13–18, 2019
Paper Number: ISRM-14CONGRESS-2019-235
... Abstract Compaction bands are studied in a high-porosity limestone from the Parisian basin under axisymmetric triaxial loading. Compression loading is performed in several stages on a cylindrical sample under a relatively high confining pressure. Several sets of X-Ray computed tomography...
Proceedings Papers

Paper presented at the 13th ISRM International Congress of Rock Mechanics, May 10–13, 2015
Paper Number: ISRM-13CONGRESS-2015-300
... strong granitic rocks and a relatively weak limestone were the target rocks. The resulting particle size distribution after each set of impacts, ranging from single to 10 consecutive impacts, were analyzed, and various size distribution functions (i.e. Rosin- Rammler, Swebrec, Grady and Gilvarry...
Proceedings Papers

Paper presented at the 13th ISRM International Congress of Rock Mechanics, May 10–13, 2015
Paper Number: ISRM-13CONGRESS-2015-107
..., the critical thermal crack temperature of the granite, limestone and thermal Kaiser effect were evaluated. Experiments were carried out with the heating speed of 1.5 /min. To avoid thermal shock and target temperatures were set at 150 and 250 . In order to verify the thermal Kaiser effect, the samples were...
Proceedings Papers

Paper presented at the 13th ISRM International Congress of Rock Mechanics, May 10–13, 2015
Paper Number: ISRM-13CONGRESS-2015-097
... ) are generally used to assess the influence of confining and pore pressure. In this work, those tests are performed on a porous rock named Sorcy limestone, along with more advanced stress paths like triaxial extension (σ 2 = σ 1 ) and purely deviatoric tests with independent pore pressure control. Those tests...
Proceedings Papers

Paper presented at the 12th ISRM Congress, October 16–21, 2011
Paper Number: ISRM-12CONGRESS-2011-192
... route, the main part of it (20 km) runs underground. The T1 tunnel is 6.7 km long run- ning mainly (92%) through karstified limestone and in the rest through flysch sediments. According to the preliminary design it is a one pipe tunnel, some 9 m wide, with a 5 m wide service tunnel. The distance between...
Proceedings Papers

Paper presented at the 12th ISRM Congress, October 16–21, 2011
Paper Number: ISRM-12CONGRESS-2011-101
... ABSTRACT The continuous evolution of damage of a porous limestone was studied during short-term uniaxial compression tests and uniaxial multi-step creep tests. An experimental device, allowing the simultaneous and continuous measurement of five elastic wave velocities in two different...
Proceedings Papers

Paper presented at the 12th ISRM Congress, October 16–21, 2011
Paper Number: ISRM-12CONGRESS-2011-097
..., we compare the behaviour of three limestones: a compact and strong one (Soignies limestone, UCS=100–120MPa), a compact one with medium strength (Moca limestone, UCS=60MPa) and a soft and porous one (Sorcy limestone, UCS=40MPa). Experimental data are analyzed in terms of evolution of the behaviour...
Proceedings Papers

Paper presented at the 12th ISRM Congress, October 16–21, 2011
Paper Number: ISRM-12CONGRESS-2011-204
...Harmonising Rock Engineering and the Environment Qian & Zhou (eds) © 2012 Taylor & Francis Group, London, ISBN 978-0-415-80444-8 Evaluation study of nozzle design selection for hydraulic fracturing test on concrete, limestone and andesite with triaxial loading at the laboratory R.K. Wattimena, S...

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