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Transverse and longitudinal fluid flow modelling in fractured porous media with non-matching meshes
(2021-01-01)
A new discrete fracture model is introduced to simulate the steady-state fluid flow in discontinuous porous media. The formulation uses a multi-layered approach to capture the effect of both longitudinal and transverse ...
Angular and Frequency-Dependent Wave Velocity and Attenuation in Fractured Porous Media
(Birkhauser Verlag Ag, 2013-11)
Wave-induced fluid flow generates a dominant attenuation mechanism in porous media. It consists of energy loss due to P-wave conversion to Biot (diffusive) modes at mesoscopic-scale inhomogeneities. Fractured poroelastic ...
Fluid flow simulation in naturally fractured media using interface solid finite elements with high aspect ratio
(2020-01-01)
Natural fractures exert a strong influence in the hydraulic behavior of a porous system, thus having a great impact in many areas of geotechnical engineering, such as hydroge-ology and petroleum engineering. This work ...
Seismoacoustic signatures of fracture connectivity
(American Geophysical Union, 2014-03)
Wave-induced fluid flow (WIFF) between fractures and the embedding matrix as well as within connected fractures tends to produce significant seismic attenuation and velocity dispersion. While WIFF between fractures and ...
On the use of high aspect ratio finite elements to model hydraulic fracturing in deformable porous media
(2019-06-15)
Hydraulic fracturing is a technique based on the injection of a viscous fluid at high pressure into an engineered well with the intention of initiating and propagating multiple fractures in a rock formation containing ...
Dynamic seismic signatures of saturated porous rocks containing two orthogonal sets of fractures: Theory versus numerical simulations
(Oxford University Press, 2018-05)
The dispersion and attenuation of seismicwaves are potentially important attributes for the noninvasive detection and characterization of fracture networks. A primary mechanism for these phenomena is wave-induced fluid ...
Energy dissipation of P- and S-waves in fluid-saturated rocks: An overview focusing on hydraulically connected fractures
(China University of Geosciences, 2015-12)
An important characteristic of fractured rocks is their high seismic attenuation, which so far has been mainly attributed to wave-induced fluid flow (WIFF) between the fractures and the embedding matrix. The influence of ...