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Proceedings Papers

First Field Test of the Dual Core-Bit Tool for Drilling Stress Record Cores at Kamioka Mine, Japan

Kazuhiko Tezuka, Toshiya Yamamoto, Takatoshi Ito, Tatsuya Yokoyama, Akio Funato
Paper presented at the SPWLA 25th Formation Evaluation Symposium of Japan, September 25–26, 2019
Paper Number: SPWLA-JFES-2019-K
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Proceedings Papers

Elastic Deformation of Core Sample With Stress Relief by Drilling and Its Application to Rock Stress Estimation

Takatoshi Ito, Akio Funato, Tetsuya Tamagawa, Kazuhiko Tezuka
Paper presented at the SPWLA 23rd Formation Evaluation Symposium of Japan, October 11–12, 2017
Paper Number: SPWLA-JFES-2017-J
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View Paper titled, Elastic Deformation of Core Sample With Stress Relief by Drilling and Its Application to Rock Stress Estimation
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Proceedings Papers

Development of the Deep Rock Stress Tester

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
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Proceedings Papers

Laboratory Verification of the Diametrical Core Deformation Analysis (DCDA) Developed For In-situ Stress Measurements

Akio Funato, Takatoshi Ito, Taito Shono
Paper presented at the 46th U.S. Rock Mechanics/Geomechanics Symposium, June 24–27, 2012
Paper Number: ARMA-2012-588
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View Paper titled, Laboratory Verification of the Diametrical Core Deformation Analysis (DCDA) Developed For In-situ Stress Measurements
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