Relating hydraulic–electrical–elastic properties of natural rock fractures at elevated stress and associated transient changes of fracture flow K Sawayama, T Ishibashi, F Jiang, T Tsuji, Y Fujimitsu Rock Mechanics and Rock Engineering 54, 2145-2164, 2021 | 29 | 2021 |
Scale-independent relationship between permeability and resistivity in mated fractures with natural rough surfaces K Sawayama, T Ishibashi, F Jiang, T Tsuji, O Nishizawa, Y Fujimitsu Geothermics 94, 102065, 2021 | 24 | 2021 |
Elastic wave velocity changes due to the fracture aperture and density, and direct correlation with permeability: an energetic approach to mated rock fractures K Sawayama, T Ikeda, T Tsuji, F Jiang, O Nishizawa, Y Fujimitsu Journal of Geophysical Research: Solid Earth 127 (2), e2021JB022639, 2022 | 20 | 2022 |
Laboratory measurements on electric and elastic properties of fractured geothermal reservoir rocks under simulated EGS conditions K Sawayama, K Kitamura, Y Fujimitsu GRC Transactions 42, 2459-2475, 2018 | 10 | 2018 |
Resistivity structural imaging of the Olkaria Domes geothermal field in Kenya using 2D and 3D MT Data inversion P Omollo, J Nishijima, Y Fujimitsu, K Sawayama Geothermics 103, 102414, 2022 | 6 | 2022 |
Relationship between Complex Resistivity, Elastic Wave and Water Saturation of Cracked Andesite under Laboratory Fluid-Flow Test K Sawayama, K Kitamura, Y Fujimitsu BUTSURI-TANSA (Geophysical Exploration) 71, 71-85, 2018 | 6 | 2018 |
Accurate determination of the first arrival time of elastic wave traveled through rock sample by machine learning Y Suwa, Z Gu, T Obata, S Nakagawa, R Morishita, K Sawayama, T Tsuji journal of Applied Geophysics 203, 104688, 2022 | 5 | 2022 |
Effects of water saturation, fracture and salinity on electric and elastic properties of fractured geothermal rocks K Sawayama, K Kitamura, Y Fujimitsu journal of the geothermal research society of japan 41 (2), 53-59, 2019 | 4 | 2019 |
Effects of confining pressure and pore water pressure on the strain behavior and deformation property of Aji granite under triaxial compression test K Sawayama, I Katayama J Geol Soc Japan 122, 603-615, 2016 | 4 | 2016 |
Extracting crucial microstructures to characterize the elastic wave velocity and resistivity of Berea sandstone using convolutional neural networks K Sawayama, T Tsuji, K Shige Geophysics 89 (1), WA117-WA126, 2024 | 3 | 2024 |
Relationship between permeability and resistivity of sheared rock fractures: the role of tortuosity and flow path percolation K Sawayama, T Ishibashi, F Jiang, T Tsuji Geophysical Research Letters 50 (20), e2023GL104418, 2023 | 3 | 2023 |
Changes in hydraulic, electric and mechanical properties with aperture closure: Insight from experimental and numerical approaches K Sawayama, T Ishibashi, F Jiang, T Tsuji, Y Fujimitsu ISRM Young Scholars Symposium on Rock Mechanics, ISRM-YSRM-2019-093, 2019 | 2 | 2019 |
Joint Diagnostic Approach to Pressure and Tracer Responses from Reservoirs: An Experimental and Theoretical Study to Estimate the Accuracy of Reservoir Models M Matsumoto, K Sawayama Geofluids, 2024 | 1 | 2024 |
Estimation of the mass fraction and distribution of ice in a lunar regolith simulant from seismic velocity T Kunimasu, K Sawayama, T Tsuji Icarus 406, 115725, 2023 | 1 | 2023 |
Simultaneous electrical resistivity and elastic wave velocity measurements during triaxial deformation of granite under brine-saturated conditions I Katayama, Y Aoi, K Tanimoto, Y Akamatsu, K Sawayama Earth, Planets and Space 75 (1), 56, 2023 | 1 | 2023 |
Heterogeneity of Subsurface Pore Distribution: Characterization based on Pressure and Tracer Responses to Identify Undiscovered Permeable Structures in Reservoirs M Matsumoto, K Sawayama Authorea Preprints, 2022 | 1 | 2022 |
圧力・熱拡散のアナロジーによる模擬坑井試験: 熱伝導率計を用いた一事例 松本光央, 澤山和貴, 古賀翼 日本地熱学会誌 43 (2), 79-83, 2021 | 1 | 2021 |
Estimation of Permeability and Water Saturation from the Resistivity and Elastic Wave Velocity: Insight from Laboratory Experiment and Digital Fracture Simulation K SAWAYAMA, F JIANG, T IKEDA, T ISHIBASHI, T TSUJI, Y FUJIMITSU, ... Proceedings World Geothermal Congress, 1–10, 2020 | 1 | 2020 |
三軸圧縮試験における庵治花崗岩のひずみ挙動および変形特性に対する封圧と間隙水圧の効果 澤山和貴, 片山郁夫 地質学雑誌 122 (11), 603-615, 2016 | 1 | 2016 |
多孔質岩石の空隙構造と比抵抗の関係解明に向けたデジタル岩石物理の活用 鈴木健士, 澤山和貴 材料 73 (3), 232-239, 2024 | | 2024 |