Y
Yu Nagano
Publications - 2
Citations - 188
Yu Nagano is an academic researcher. The author has contributed to research in topics: Hydraulic fracturing & Viscosity. The author has an hindex of 2, co-authored 2 publications receiving 135 citations.
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Features of CO2 fracturing deduced from acoustic emission and microscopy in laboratory experiments
Tsuyoshi Ishida,Youqing Chen,Ziad Bennour,Hiroto Yamashita,Shuhei Inui,Y. Nagaya,Makoto Naoi,Qu Chen,Yoshiki Nakayama,Yu Nagano +9 more
TL;DR: In this article, the authors conducted hydraulic fracturing (HF) experiments on 170mm cubic granite specimens with a 20mm diameter central hole to investigate how fluid viscosity affects HF process and crack properties.
Journal ArticleDOI
Crack Extension in Hydraulic Fracturing of Shale Cores Using Viscous Oil, Water, and Liquid Carbon Dioxide
Ziad Bennour,Tsuyoshi Ishida,Y. Nagaya,Youqing Chen,Yoshitaka Nara,Yoshitaka Nara,Qu Chen,Kotaro Sekine,Yu Nagano +8 more
TL;DR: In this paper, the authors performed hydraulic fracturing experiments on cylindrical cores of anisotropic shale obtained by drilling normal to the sedimentary plane and found that the direction of crack extension is strongly affected by in situ stress conditions.