Compressional wave propagation in saturated porous media and its numerical analysis using a space–time conservation element and solution element method

D Yang - Review of Scientific Instruments, 2021 - pubs.aip.org
Compressional waves in saturated porous media are relevant to many fields from oil
exploration to diagnostic of human cancellous bone and can be used to interpret physical …

Frequency-dependent anisotropy in porous rocks with aligned cracks containing compressible fluid–a model based on poroelastic spring condition and exact solution …

Y Song, J Wang, H Hu, B Han - Geophysical Journal …, 2021 - academic.oup.com
Thorough understanding of seismic signatures in cracked rocks is essential to estimate rock
physical properties. Wave-induced fluid flow (or diffusion), scattering and Biot's global flow …

Bayesian full-waveform inversion of tube waves to estimate fracture aperture and compliance

J Hunziker, A Greenwood, S Minato, ND Barbosa… - Solid Earth, 2020 - se.copernicus.org
The hydraulic and mechanical characterization of fractures is crucial for a wide range of
pertinent applications, such as geothermal energy production, hydrocarbon exploration, CO …

Experimental verification of spatially varying fracture-compliance estimates obtained from amplitude variation with offset inversion coupled with linear slip theory

S Minato, R Ghose, G Osukuku - Geophysics, 2018 - library.seg.org
The elastic compliance of a fracture can be spatially varying, reflecting the variation of
microscale properties of the fracture, eg, aperture, contact asperities, and fracture infill …

Simulation of borehole acoustic wavefields in fractured media by combining the spectral-element method and linear-slip model

J Xu, QH Liu, H Hu, Y Zhong - Geophysics, 2021 - library.seg.org
We have used the spectral-element method (SEM) to simulate 3D acoustic wavefields in the
fluid-filled borehole embedded in fractured media. The fractures are characterized by the …

Numerical simulation of shear wave attenuation in borehole inserted by a horizontal fracture

B Yan, W Ou, X Huang, NV da Silva - Acta Geophysica, 2020 - Springer
The amplitude of shear waves is attenuated when passing through horizontal fractures
crossing a borehole. In this study, we investigate the amplitude attenuation of shear waves …

Propagation of Pore Pressure and Stress in Saturated Porous Media Based on a Darcy‐Brinkman Formulation

D Yang, L Zhang - Geofluids, 2021 - Wiley Online Library
Propagation of pore pressure and stress in water‐saturated elastic porous media is
theoretically investigated when considering the Darcy‐Brinkman law. The wave mode …

[HTML][HTML] Characterization and imaging of a hydrothermally active near-vertical fault zone in crystalline rocks based on hydrophone VSP data

A Greenwood, E Caspari, D Egli, L Baron, T Zahner… - Tectonophysics, 2019 - Elsevier
A shallow, hydrothermally active, fault zone embedded in fractured crystalline rocks of the
Central Swiss Alps has been drilled and geophysically explored in view of its potential …

Hydraulic properties of closely spaced dipping open fractures intersecting a fluid‐filled borehole derived from tube wave generation and scattering

S Minato, R Ghose, T Tsuji, M Ikeda… - Journal of Geophysical …, 2017 - Wiley Online Library
Fluid‐filled fractures and fissures often determine the pathways and volume of fluid
movement. They are critically important in crustal seismology and in the exploration of …

Characterizing hydraulic fractures using the transient pressure surge effect

Y Jin, Y Zheng, L Huang… - Spe/aapg/seg …, 2022 - onepetro.org
It has been demonstrated in both numerical modeling and lab experiments that a fluid-filled
fracture can be a subsurface pressure amplifier to a weak driving force such as an incident …