Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
Attenuation in Fluid-Saturated Fractured Porous Media - Quasi-Static Numerical Upscaling and Wave Propagation Modeling. / Novikov, Mikhail; Caspari, Eva; Lisitsa, Vadim et al.
Poromechanics 2017 - Proceedings of the 6th Biot Conference on Poromechanics. American Society of Civil Engineers (ASCE), 2017. p. 1499-1506.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
}
TY - GEN
T1 - Attenuation in Fluid-Saturated Fractured Porous Media - Quasi-Static Numerical Upscaling and Wave Propagation Modeling
AU - Novikov, Mikhail
AU - Caspari, Eva
AU - Lisitsa, Vadim
AU - Quintal, Beatriz
AU - Rubino, J. Germán
AU - Holliger, Klaus
PY - 2017
Y1 - 2017
N2 - Several mechanisms can cause wave attenuation and velocity dispersion in fluid-saturated fractured porous media comprising, on the one hand, pressure diffusion phenomena, such as fracture-to-background (FB) and fracture-to-fracture (FF) wave-induced flow (WIFF), and, on the other hand, dynamic effects, such as scattering and Biot global flow. In this study, we compare attenuation estimates from wave propagation simulations based on Biot's dynamic equations with corresponding estimates from a numerical upscaling approach based on quasi-static poroelasticity. The former is able to capture all aforementioned attenuation mechanisms and their interplay, though detailed interpretations tend to be difficult. The latter only accounts for pressure diffusion phenomena and thus will be guiding the physical interpretation. We verify that the attenuation behavior caused by pressure diffusion due to FB WIFF is equivalent for both approaches. The results for FF WIFF are less conclusive. We also observe that scattering may be affected by pressure diffusion phenomena.
AB - Several mechanisms can cause wave attenuation and velocity dispersion in fluid-saturated fractured porous media comprising, on the one hand, pressure diffusion phenomena, such as fracture-to-background (FB) and fracture-to-fracture (FF) wave-induced flow (WIFF), and, on the other hand, dynamic effects, such as scattering and Biot global flow. In this study, we compare attenuation estimates from wave propagation simulations based on Biot's dynamic equations with corresponding estimates from a numerical upscaling approach based on quasi-static poroelasticity. The former is able to capture all aforementioned attenuation mechanisms and their interplay, though detailed interpretations tend to be difficult. The latter only accounts for pressure diffusion phenomena and thus will be guiding the physical interpretation. We verify that the attenuation behavior caused by pressure diffusion due to FB WIFF is equivalent for both approaches. The results for FF WIFF are less conclusive. We also observe that scattering may be affected by pressure diffusion phenomena.
UR - http://www.scopus.com/inward/record.url?scp=85026314725&partnerID=8YFLogxK
U2 - 10.1061/9780784480779.186
DO - 10.1061/9780784480779.186
M3 - Conference contribution
AN - SCOPUS:85026314725
SP - 1499
EP - 1506
BT - Poromechanics 2017 - Proceedings of the 6th Biot Conference on Poromechanics
PB - American Society of Civil Engineers (ASCE)
T2 - 6th Biot Conference on Poromechanics, Poromechanics 2017
Y2 - 9 July 2017 through 13 July 2017
ER -
ID: 9032434