TY - GEN
T1 - A case study of determining orientations of in-situ horizontal principal stresses based on electrical images of borehole failures at a deep drilling project
AU - Lin, W.
AU - Yeh, E. C.
AU - Soh, W.
AU - Kinoshita, M.
AU - Ito, H.
AU - Hung, J. H.
PY - 2006
Y1 - 2006
N2 - Orientations of in-situ horizontal principal stresses were determined by using both drilling induced borehole compressive failures (breakouts) and tensile fractures from electrical images obtained in the Hole-B of Taiwan Chelungpu-fault Drilling Project (TCDP). Overall, the orientation of the in-situ maximum horizontal principal stress SHmax is parallel to the dip direction of rock formations in the studied depth of 950-1350 m. However, S Hmax orientations in the depth of 1130 m and 1190 m seem to be perpendicular to the dip direction of the formations.
AB - Orientations of in-situ horizontal principal stresses were determined by using both drilling induced borehole compressive failures (breakouts) and tensile fractures from electrical images obtained in the Hole-B of Taiwan Chelungpu-fault Drilling Project (TCDP). Overall, the orientation of the in-situ maximum horizontal principal stress SHmax is parallel to the dip direction of rock formations in the studied depth of 950-1350 m. However, S Hmax orientations in the depth of 1130 m and 1190 m seem to be perpendicular to the dip direction of the formations.
UR - http://www.scopus.com/inward/record.url?scp=55549131939&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=55549131939&partnerID=8YFLogxK
U2 - 10.1201/9781439833469.ch91
DO - 10.1201/9781439833469.ch91
M3 - Conference contribution
AN - SCOPUS:55549131939
SN - 0415410010
SN - 9780415410014
T3 - Proceedings of the International Symposium of the International Society for Rock Mechanics, Eurock 2006 - Eurock 2006 Multiphysics Coupling and Long Term Behaviour in Rock Mechanics
SP - 625
EP - 630
BT - Proceedings of the International Symposium of the International Society for Rock Mechanics, Eurock 2006 - Eurock 2006 Multiphysics Coupling and Long Term Behaviour in Rock Mechanics
PB - Taylor and Francis/ Balkema
T2 - International Symposium of the International Society for Rock Mechanics, Eurock 2006 - Eurock 2006 Multiphysics Coupling and Long Term Behaviour in Rock Mechanics
Y2 - 9 May 2006 through 12 May 2006
ER -