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Keywords: rock specimen
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Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-041
... for bedded rock specimen. The two-dimensional numerical rock model consisting of 3800 particles is approximately 50 mm wide and 100 mm high. As shown in Fig. 1, the left part is the assembly of particles, and the right part is the contact modes between the particles. We resorted to the linear parallel bond...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-050
... Wellbore Design hopkinson pressure bar test hybrid finite-discrete element method rock specimen finite-discrete element method Three-dimensional Hybrid Finite-discrete Element Modelling of Rock Failure Process H. Y. Liua*, D. Fukudaa, b, M. Mohammadnejada, Haoyu Hana and Andrew H.C. Chana...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-143
... typically requires full size rock specimens (1000 mm 1000 10th Asian Rock Mechanics Symposium (ARMS10), Singapore The 2018 ISRM International Symposium © 2018 ISRM & SRMEG (Singapore), ISBN: 978-981-11-9003-2 Z. Zhao, Y. Zhou, J. Shang (Eds) 1 ARMS10 10 th Asian Rock Mechanics Symposium 29 October to 03...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-234
... are difficult to be monitored rather than metallic structures which are homogeneous (Park et al., 2006). acoustic emission pzt patch kHz Reservoir Characterization emi signature Signature sensor impedance isrm international symposium asian rock mechanics symposium 29 rock specimen admittance...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-227
...×10-6 plagioclase 14.1×10-6 mica 3.0×10-6 According to the basic specimen-genesis procedure in Potyondy and Cundall (2004), numerical rock specimens with parallel bonds were generated. 15,000 particles were packed into a rectangular box with a height of 63.4 mm and a width of 31.7 mm. Each particle...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-209
... geology asian rock mechanics symposium arms8 centrifugal acceleration rock failure Reservoir Characterization centrifugal model test back side october 2014 Upstream Oil & Gas Consider Deterioration specimen rock specimen Inoue bedrock collapse kusakabe tensile strength 8th Asian Rock...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-033
... thesurface of rock specimens with a microscope, and measuredthe weight of rock specimens. It was shown that precipitation occurredon the surface of rock specimens. It was also shown that precipitation did not occur on rock specimens kept in water without HSULPC. The weight of all specimens kept with HSULPC...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-054
..., but existing theoretical formulas were still difficult to settle all the relevant engineering matters. For instance, when newly generated cracks initiate and propagate, the morphology of pre-existing flaws and the stress conditions will be different with those before for a rock specimen. In other words...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-007
... numerical simulation Modeling & Simulation computer based training cutter prediction specimen penetration depth reservoir geomechanics Wellbore Design disc cutter international journal jeon prediction model rock specimen october 2014 Performance Assessment of Rock Cutting Tool S. Jeon...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 7th Asian Rock Mechanics Symposium, October 15–19, 2012
Paper Number: ISRM-ARMS7-2012-037
... ABSTRACT Laboratory flow tests have been performed to assess the effects of normal and shear stresses on the permeability of radial fractures around borehole. The rock specimens are prepared from Phu Kradung sandstone to obtain hollow cylinders having outside and inside diameters of 18.6...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 7th Asian Rock Mechanics Symposium, October 15–19, 2012
Paper Number: ISRM-ARMS7-2012-012
..., the more slender models were found to produce smaller UCS values when compared to the less slender models in the case of the singly-jointed rock specimens. This observation was related to the need for more significant intact material rupture to accommodate sliding failure on the joint for the case...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 7th Asian Rock Mechanics Symposium, October 15–19, 2012
Paper Number: ISRM-ARMS7-2012-029
...-mechanical property changes including revelation characteristics of microfractures due to laboratory accelerated weathering process. Total of 140 cycles of freeze-thaw were completed on deteriorated rock specimens with measuring the index properties as well as geometries of microfractures. Each complete...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 7th Asian Rock Mechanics Symposium, October 15–19, 2012
Paper Number: ISRM-ARMS7-2012-107
... pressure and high temperature. Rock specimen of Ainoura sandstone and Berea sandstone were employed. Supercritical CO 2 was injected into the rock specimen with constant differential pressure imposed, and the flow into and out from the rock specimen were measured continously. In order to interpret...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 7th Asian Rock Mechanics Symposium, October 15–19, 2012
Paper Number: ISRM-ARMS7-2012-104
... ABSTRACT In this study, a method is devised to implement a supercritical CO 2 (scCO 2 ) injection environment on a laboratory scale and to investigate the effects of scCO 2 on the properties of rock specimens. Specimens of shale and sandstone normally constituting the cap rock and reservoir...
Proceedings Papers

Paper presented at the ISRM International Symposium - 6th Asian Rock Mechanics Symposium, October 23–27, 2010
Paper Number: ISRM-ARMS6-2010-049
... Abstract: The purpose of this study is to clarify the relationship between axial point load strength and uniaxial compressive strength in hydrothermally altered rocks, which are typical of the soft and semi-hard rocks found in northeastern Hokkaido, Japan. 1,747 rock specimens were collected...
Proceedings Papers

Paper presented at the ISRM International Symposium - 5th Asian Rock Mechanics Symposium, November 24–26, 2008
Paper Number: ISRM-ARMS5-2008-160
... different porosity ratio brittle porous rock Rock Mech flow in porous media mathematical model specimen rock specimen water head pressure deformation permeability Upstream Oil & Gas porosity ratio permeability evolution rock sample equation ISRM International Symposium 2008 5th Asian...
Proceedings Papers

Paper presented at the ISRM International Symposium - 5th Asian Rock Mechanics Symposium, November 24–26, 2008
Paper Number: ISRM-ARMS5-2008-094
... of discontinuities, increases with a decrease in size of rock specimens. The effect of size on the compressive strength of a pillar has been investigated by conducting tests both in the laboratory and in situ. Most of the experimental results available are for coal and are concerned especially with the compressive...
Proceedings Papers

Paper presented at the ISRM International Symposium - 2nd Asian Rock Mechanics Symposium, September 11–14, 2001
Paper Number: ISRM-ARMS2-2001-024
... deformation failure process of coal and sand rock specimen and obtain the deformation localization banding width. The gradient plasticity constitutive relation of describing deformation failure of rock is e stablished by introducing rock internal length parameter and two order plasticity strain gradient...
Proceedings Papers

Paper presented at the ISRM International Symposium - 2nd Asian Rock Mechanics Symposium, September 11–14, 2001
Paper Number: ISRM-ARMS2-2001-026
... compression fracture rock specimen deformation conventional triaxial compression ABSTRACT: In the paper, experimental studies on Strain Gradient (SG) of a marble were performed in macro and messo scope. The conventional triaxial compression test were carried out to study the initiation...
Proceedings Papers

Paper presented at the ISRM International Symposium - 2nd Asian Rock Mechanics Symposium, September 11–14, 2001
Paper Number: ISRM-ARMS2-2001-035
... ABSTRACT: The objective of this paper is to present experimental results and to investigate the correlation between tensile strength and mode-l fracture toughness of rocks. Rock specimens were obtained from Saudi Arabia, from both an outcrop and a petroleum reservoir at a depth of about 3.5 km...

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