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Keywords: breakout
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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-2016-017
... Abstract We constrain the state of tectonic stress in the Nankai accretionary wedge at the Integrated Ocean Drilling Program (IODP) site C0002, southwest Japan, based on borehole wall failures such as breakouts and drilling-induced tensile fractures (DITFs) observed during IODP Expedition 338...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, May 10–12, 2016
Paper Number: ISRM-ISRS-2016-029
... to the Pohang EGS research site, which is the first of its kind in Korea. The in-situ stress estimation analysis was conducted at an exploration borehole, EXP-1, which is about 1 km in depth. Three hydraulic fracturing stress measurement tests were conducted at around 700m depth. Several borehole breakouts...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-009
... fracture borehole San Andreas stress field Upstream Oil & Gas constrain borehole failure Hmax breakout Magnitude Wellbore Design stress magnitude stress state perturbation principal stress determination drilling-induced tensile fracture Rock Stress and Earthquakes Xie (ed.) © 2010...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-042
... and design. metals & mining Engineering characteristic analysis reservoir geomechanics Thickness Reservoir Characterization Upstream Oil & Gas mechanism hou fa-liang drilling operation Rock mechanics discal drill core MPa stress field breakout Rock Core stress concentration...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-007
... from the weight of the overlying strata. In order to estimate the maximum horizontal stress additional field and laboratory efforts are employed. Geophysical logging using such tools as the Borehole Televiewer or the Formation Micro Imager captures oriented images of borehole breakouts, from which...

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