Uncertainty and resolution analysis of 2D and 3D inversion models computed from geophysical electromagnetic data

Z Ren, T Kalscheuer - Surveys in Geophysics, 2020 - Springer
A meaningful solution to an inversion problem should be composed of the preferred
inversion model and its uncertainty and resolution estimates. The model uncertainty …

The critical factors for permeability-formation factor relation in reservoir rocks: Pore-throat ratio, tortuosity and connectivity

J Cai, Z Zhang, W Wei, D Guo, S Li, P Zhao - Energy, 2019 - Elsevier
The hydraulic properties of reservoir rocks have a directly impact on the flow path of
exchange fluid in geothermal and oil reservoir systems. Estimation of hydraulic properties by …

Quality over quantity: on workflow and model space exploration of 3D inversion of MT data

K Robertson, S Thiel, N Meqbel - Earth, Planets and Space, 2020 - Springer
Abstract 3D inversions of magnetotelluric data are now almost standard, with computational
power now allowing an inversion to be performed in a matter of days (or hours) rather than …

A deep-learning based model for fracture network characterization constrained by induced micro-seismicity and tracer test data in enhanced geothermal system

X Liang, T Xu, J Chen, Z Jiang - Renewable Energy, 2023 - Elsevier
Fracture network developed in hot dry rock (HDR) primarily controls the flow and heat
transport in enhanced geothermal system (EGS). Characterization of fracture network in …

Relationship between permeability and resistivity of sheared rock fractures: the role of tortuosity and flow path percolation

K Sawayama, T Ishibashi, F Jiang… - Geophysical Research …, 2023 - Wiley Online Library
The fluid‐flow properties of fractures have received increasing attention regarding the role of
geofluids in the genesis of slow and fast earthquakes and recent advances in …

The Los Humeros (Mexico) geothermal field model deduced from new geophysical and geological data

J Arzate, F Corbo-Camargo, G Carrasco-Núñez… - Geothermics, 2018 - Elsevier
Abstract The Los Humeros volcanic complex, a 21× 15 km diameter caldera edifice nesting
volcanic domes and a complex faulting structure, is located at the eastern edge of the Trans …

Experimental study on impedance dispersion characteristics and electrical resistivity of high temperature granite

B Shu, R Huang, J Tan, D Li - Geothermics, 2024 - Elsevier
Electromagnetic methods are widely used in geothermal exploration. The electrical
resistivity and impedance dispersion characteristics of high temperature rocks are the basis …

Modeling a fractured geothermal reservoir using 3-D AMT data inversion: insights from Garibaldi Volcanic Belt, British Columbia, Canada

FH Ghalati, JA Craven, D Motazedian, SE Grasby… - Geothermics, 2022 - Elsevier
An audio-magnetotelluric (AMT) survey was conducted to explore for shallow geothermal
resources in the Garibaldi Volcanic Belt, the location of which has the highest geothermal …

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… - Rock Mechanics and …, 2021 - Springer
Monitoring the hydraulic properties within subsurface fractures is vitally important in the
contexts of geoengineering developments and seismicity. Geophysical observations are …

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… - Journal of …, 2022 - Wiley Online Library
In an effort to reveal the subsurface hydraulic changes in fractures by seismic monitoring,
aperture‐related velocity changes need to be investigated. We developed a numerical …