1-11 of 11
Keywords: estimation
Close
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, May 10–12, 2016
Paper Number: ISRM-ISRS-2016-017
... azimuths throughout the drilled depths, it is inferred that the breakouts are stress-dependent such that the stress-induced premature rock damage zones are spalled out progressively with time. Thus, breakout azimuths can be used to estimate stress orientation, but breakout geometry (width) should...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, May 10–12, 2016
Paper Number: ISRM-ISRS-2016-029
... Abstract In-situ stress is critical for wellbore stability, selection of injection and production well location as well as performance of hydraulic stimulation for Enhanced Geothermal System (EGS). This study introduces the integrated in situ stress estimation method and result applied...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-014
..., we proposed a theory of measurement to apply the DCCBO technique to orthotropic rock. Second, a numerical experiment was carried out to confirm the effectiveness of the proposed measurement theory. orthotropic rock experiment isotropic assumption method estimation perpendicular reservoir...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-055
...Rock Stress and Earthquakes Xie (ed.) © 2010 Taylor & Francis Group, London, ISBN 978-0-415-60165-8 Estimation of in-situ stress state at the maximum depth of the Jinping tunnels, China C.Q. Zhang, X.T. Feng, H. Zhou State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-084
...Numerical modeling Rock Stress and Earthquakes Xie (ed.) © 2010 Taylor & Francis Group, London, ISBN 978-0-415-60165-8 Development of method for evaluation of three dimensional distribution of in situ stress state and preliminary estimation of applicability Takeo Tanno & Toru Hirano Crystalline...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-016
... hydraulic fracturing good rock mass estimation water injection permeability packer minimum insitu stress headrace tunnel case study Rock Stress and Earthquakes Xie (ed.) © 2010 Taylor & Francis Group, London, ISBN 978-0-415-60165-8 Estimation of minimum insitu stress by hydrojacking method case...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-021
... of the piezomagnetic stress meter are discussed in theory and practical application on the detail. This system first processes error and estimates precision about measured value by least-squares method, studentized residuals method and coordinate transformation. Precision estimation have two steps: assessing...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-007
... ABSTRACT: A hybrid method for constraining all three principal in situ stresses and their directions around vertical boreholes at great depths is described. It involves hydraulic fracturing tests for estimating the minimum horizontal stress and its direction. The vertical stress is computed...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-013
... ABSTRACT: Downhole microseismics has gained in popularity in recent years as a way to characterize hydraulic fracturing sources and to estimate in-situ stress state. Conventional approaches only utilize part of the information contained in the microseismic waveforms such as the P/S amplitude...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-033
... ABSTRACT: We estimate the absolute stress value at the earthquake source region of a small cubic area in Homestead valley fault segment which broke during the Landers earthquake, using seismic stress drop and rotations of stress axes during the event. We obtained the pre-seismic compressive...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-048
... is explained how the natural stress tensor field was assessed by considering these few measurements and a stress inversion analysis based in a slip analysis with discontinuity data collected at the powerhouse chamber site. Even tough, there is no a clear evidence to validate the estimated natural stress tensor...

Product(s) added to cart

Close Modal