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Keywords: orientation
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Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, May 10–12, 2016
Paper Number: ISRM-ISRS-2016-001
... Upstream Oil & Gas variation stability Reservoir Characterization McKINNON Finland Johansson lntematlonal symposium orientation geological structure seismic event ln-5hu rock stress stress condition stress measurement interaction structural geology information characteristic...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, May 10–12, 2016
Paper Number: ISRM-ISRS-2016-013
... reservoir geomechanics Upstream Oil & Gas Raasakka rail transportation orientation Tampere city centre Rock stress Reservoir Characterization ground transportation stability analysis horizontal stress Rock Stress Measurement international symposium parking cavern construction...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, May 10–12, 2016
Paper Number: ISRM-ISRS-2016-012
... Abstract The Deformation Rate Analysis (ORA) technique can be used to estimate the in situ stress from orientated core obtained from exploration or for example from a block of rock extracted from the side of a drive. In the former case it doesn't require underground access and in both cases...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, May 10–12, 2016
Paper Number: ISRM-ISRS-2016-014
... design. Excavation method is the only factor, among the three, which one can interfere. The stability of an underground opening is not only determined by the quality of the rock mass, but also the state of in-situ stresses. The state of in-situ stresses refers to the magnitude and the orientation...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, May 10–12, 2016
Paper Number: ISRM-ISRS-2016-037
...-Kuroshima drilling sites in Shikoku Island, southwest Japan. As a preliminary result, the stress orientations determined by the ASR method were reported and compared with the hydraulic fracturing results. The three-dimensional principal stress orientation by the ASR method showed that stress regime...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, May 10–12, 2016
Paper Number: ISRM-ISRS-2016-042
... the largest induced moment magnitude (M -3). Upstream Oil & Gas nuclear fuel reservoir geomechanics Earthquake orientation target fracture Rock stress repository radiated seismic energy stress drop Forsmark forebulge seismicity fracture stress condition Reservoir Characterization...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, May 10–12, 2016
Paper Number: ISRM-ISRS-2016-028
... Reservoir Characterization axial gauge axial strain Upstream Oil & Gas variability instrument reservoir geomechanics variation axial compensation gauge situ stress Symposium orientation borehole axial strain compensation compensation Drilling strain change stress relief...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, May 10–12, 2016
Paper Number: ISRM-ISRS-2016-029
... experiments on rock core samples extracted from EXP-1. Instead of simply averaging the principal stress and orientation data from independent measurement methods, we took an average after transforming the measured in situ stress data to an identical axis. A few examples with synthetic data shows...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, May 10–12, 2016
Paper Number: ISRM-ISRS-2016-044
... unloading. These results suggest that the ASR method is suitable not only for hard rocks but also for soft and unconsolidated formations. The orientations of the three principal anelastic strains must be the same as the orientations of the three principal stresses applied to the sample. In these experiments...
Proceedings Papers
Takatoshi Ito, Toshiyuki Nayuki, Kazumasa Kato, Akio Funato, Takashi Satoh, Yuichi Kitagawa, Harumi Kato
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, May 10–12, 2016
Paper Number: ISRM-ISRS-2016-034
... Reservoir Characterization orientation diameter baby hole reservoir geomechanics drill pipe downhole tool core sample Upstream Oil & Gas borehole stress measurement in-situ stress hydraulic fracturing test interval Symposium packer deep depth SHmax deep rock stress tester...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, May 10–12, 2016
Paper Number: ISRM-ISRS-2016-024
... Abstract This study addresses and demonstrates an economic support design scheme considering in-situ stress orientation and excavation direction on the basis of the work conducted in the Horonobe Underground Research Laboratory (URL) project. The URL project has been conducted by the Japan...
Proceedings Papers
Weiren Lin, Timothy B. Byrne, Akito Tsutsumi, Yuhji Yamamoto, Arito Sakaguchi, Yuzuru Yamamoto, Chandong Chang
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-029
... ABSTRACT: To determine three-dimensional stress orientation, we carried anelastic strain recovery (ASR) measurements out using drill core samples taken from a scientific ocean deep drilling project. The lithology of the core samples is mudstone or siltstone with larger porosities ranged from...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-004
... ABSTRACT: Stability and potential failure mode of tunnels and underground rock caverns is directly related to the magnitude and orientation of the in-situ rock stress. In some cases, the high horizontal in-situ stress is essential in maintaining cavern stability, whilst in other cases the high...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-019
... ABSTRACT: This paper introduces one method to detect the fractures induced during the hydraulic fracturing in-situ stress measurement process. This method can detect the hydraulic fracture fairly well, and can define the strike of induced fractures exactly so as to determine the orientation...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-009
... ABSTRACT: Over the past fifteen years, my colleagues and I have developed a suite of techniques for determination of the full stress tensor in arbitrarily-oriented wells and boreholes utilizing observations of non-catastrophic failures of the wellbore wall - compressive failures, drilling...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-039
... field has wider than regional character and effects of very far origin can be observed. The great changes in stress orientation and in stress state were observed before the biggest earthquakes on the Eurasian lithosphere plate. 1 INTRODUCTION The current main task of seismology seems...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-020
..., and the orientation and magnitude of stresses strongly influence deformation and damage characteristics of surrounding rock mass. Most coal mines in China are operated in underground, and there are a variety of deposition conditions of coal seams. The stress fields in the coal measures are complex and irregular...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-010
... principal stress Reservoir Characterization orientation hydraulic test interpretation maximum horizontal Upstream Oil & Gas borehole determination principal stress magnitude hydraulic fracturing stress component echelon fracture stress field fracture Magnitude Rock Mech principal stress...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-055
... of these phenomena disclosed during the excavation of the auxiliary tunnels and the underground testing sites. Based on these data, the multi-methods integration analysis is carried out to estimating the regime, orientation and magnitude of the in-situ stress at this site. The analysis indicates that the accuracy...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-114
... maximum compression direction, which is in accord with the contemporary earthquake focal mechanism solutions, as well as the first order pattern of tectonic stress direction in the eastern Eurasian plate. The current stress tensor exhibits a heterogeneity in its orientations and magnitudes, possibly...
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