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Takatoshi Ito
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Journal Articles

An Improved Continuum Approach for Unconsolidated Formations on the Field Scale

Bailong Liu, Takatoshi Ito
Journal: SPE Journal
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 29 (07): 3777–3790.
Paper Number: SPE-219754-PA
https://doi.org/10.2118/219754-PA
Published: 10 July 2024
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Journal Articles

Numerical Analysis of Permeability Changes for Clogging and Microcracks Induced by the Invasion of Fracturing Fluid

Bailong Liu, Deyi Yang, Takatoshi Ito
Journal: SPE Journal
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 28 (06): 3432–3447.
Paper Number: SPE-217460-PA
https://doi.org/10.2118/217460-PA
Published: 13 December 2023
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View article titled, Numerical Analysis of Permeability Changes for Clogging and Microcracks Induced by the Invasion of Fracturing Fluid
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Proceedings Papers

Introduction of Natural Fracture Information to Induced Seismicity Analysis

Yusuke Mukuhira, Martin Ziegler, Takatoshi Ito, Hiroshi Asanuma, Markus. O. Häring
Paper presented at the 5th ISRM Young Scholars' Symposium on Rock Mechanics and International Symposium on Rock Engineering for Innovative Future, December 1–4, 2019
Paper Number: ISRM-YSRM-2019-095
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View Paper titled, Introduction of Natural Fracture Information to Induced Seismicity Analysis
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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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View Paper titled, First Field Test of the Dual Core-Bit Tool for Drilling Stress Record Cores at Kamioka Mine, Japan
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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

Re-Opening and Shut-in Behaviors under a Large Ratio of Principal Stresses in a Hydraulic Fracturing Test

Tatsuya Yokoyama, Kiyotoshi Sakaguchi, Takatoshi Ito
Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-109
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View Paper titled, Re-Opening and Shut-in Behaviors under a Large Ratio of Principal Stresses in a Hydraulic Fracturing Test
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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

Distinct Element Analysis for Hydraulic Fracturing in Shale – Effect of Brittleness on The Fracture Propagation –

Michiharu Hiyama, Hiroyuki Shimizu, Takatoshi Ito, Tetsuya Tamagawa, Kazuhiko Tezuka
Paper presented at the 47th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2013
Paper Number: ARMA-2013-659
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View Paper titled, Distinct Element Analysis for Hydraulic Fracturing in Shale – Effect of Brittleness on The Fracture Propagation –
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Proceedings Papers

The Distinct Element Analysis for Hydraulic Fracturing in Unconsolidated Sand Considering Fluid Viscosity

Hiroyuki Shimizu, Sumihiko Murata, Takatoshi Ito, Tsuyoshi Ishida
Paper presented at the ISRM Regional Symposium - 7th Asian Rock Mechanics Symposium, October 15–19, 2012
Paper Number: ISRM-ARMS7-2012-085
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View Paper titled, The Distinct Element Analysis for Hydraulic Fracturing in Unconsolidated Sand Considering Fluid Viscosity
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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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Proceedings Papers

Laboratory Study of Hydraulic Fracturing Behavior in Unconsolidated Sands for Methane Hydrate Production

Takatoshi Ito, Akira Igarashi, Kiyofumi Suzuki, Sadao Nagakubo, Maki Matsuzawa, Koji Yamamoto
Paper presented at the Offshore Technology Conference, May 5–8, 2008
Paper Number: OTC-19324-MS
https://doi.org/10.4043/19324-MS
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View Paper titled, Laboratory Study of Hydraulic Fracturing Behavior in Unconsolidated Sands for Methane Hydrate Production
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Journal Articles

Utilization of Mud Weights in Excess of the Least Principal Stress to Stabilize Wellbores: Theory and Practical Examples

Takatoshi Ito, Mark D. Zoback, Pavel Peska
Journal: SPE Drilling & Completion
Publisher: Society of Petroleum Engineers (SPE)
SPE Drill & Compl 16 (04): 221–229.
Paper Number: SPE-57007-PA
https://doi.org/10.2118/57007-PA
Published: 01 December 2001
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View article titled, Utilization of Mud Weights in Excess of the Least Principal Stress to Stabilize Wellbores: Theory and Practical Examples
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