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Keywords: horizontal principal stress
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Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-143
... Characterization orientation fracture initiation rock medium in-situ stress reservoir geomechanics horizontal fracture stress state stress concentration horizontal principal stress hydraulic fracturing borehole hard roof stress distribution fracture Upstream Oil & Gas transverse borehole...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-059
... at the cavern section. Therefore, the method (Wang C. H., 2008) shall be adopted to process all the measured data. Plot ratio of average horizontal principal stress to vertical principal stress and ratios of maximum and minimum horizontal principal stresses to vertical stress 4versus depth in Fig.3 and Fig.4...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-026
... are dominated by horizontal stresses, the tectonic stresses take absolute predominance, with the maximum horizontal principal stress up to 42.19 MPa, and the minimum horizontal principal stress up to 22.8 MPa. However, the in-situ stress fields are dominated by gravity stresses in Huainan and Pingdingshan coal...

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