Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
Seismic attenuation mechanisms in fractured fluid saturated media - Numerical and field examples. / Caspari, E.; Barbosa, N. D.; Novikov, M. et al.
81st EAGE Conference and Exhibition 2019 Workshop Programme. Vol. 2019 EAGE Publishing BV, 2019. p. 1-5 (81st EAGE Conference and Exhibition 2019 Workshop Programme).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
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TY - GEN
T1 - Seismic attenuation mechanisms in fractured fluid saturated media - Numerical and field examples
AU - Caspari, E.
AU - Barbosa, N. D.
AU - Novikov, M.
AU - Lisitsa, V.
AU - Hunziker, J.
AU - Quintal, B.
AU - Rubino, G.
AU - Holliger, K.
N1 - Publisher Copyright: © 81st EAGE Conference and Exhibition 2019 Workshop Programme. All rights reserved.
PY - 2019/6/3
Y1 - 2019/6/3
N2 - A number of different mechanisms can cause attenuation of propagating seismic waves in a fractured fluid-saturated porous medium, notably geometrical spreading, displacement of pore fluid relative to the solid frame, and transmission losses and scattering. In this study, we examine these attenuation mechanisms using numerical forward simulations and a field example. The numerical methods include a quasi-static upscaling approach and wave propagation simulations. They are based on Biot's equations of poroelasticity and, hence, fractures are modeled as soft, highly porous and permeable features. The field examples include full-waveform sonic data from the Grimsel Test Site underground laboratory situated in a granodioritic rock mass, which exhibits both brittle and ductile deformation structures at various scales.
AB - A number of different mechanisms can cause attenuation of propagating seismic waves in a fractured fluid-saturated porous medium, notably geometrical spreading, displacement of pore fluid relative to the solid frame, and transmission losses and scattering. In this study, we examine these attenuation mechanisms using numerical forward simulations and a field example. The numerical methods include a quasi-static upscaling approach and wave propagation simulations. They are based on Biot's equations of poroelasticity and, hence, fractures are modeled as soft, highly porous and permeable features. The field examples include full-waveform sonic data from the Grimsel Test Site underground laboratory situated in a granodioritic rock mass, which exhibits both brittle and ductile deformation structures at various scales.
UR - http://www.scopus.com/inward/record.url?scp=85084021554&partnerID=8YFLogxK
U2 - 10.3997/2214-4609.201901908
DO - 10.3997/2214-4609.201901908
M3 - Conference contribution
AN - SCOPUS:85084021554
VL - 2019
T3 - 81st EAGE Conference and Exhibition 2019 Workshop Programme
SP - 1
EP - 5
BT - 81st EAGE Conference and Exhibition 2019 Workshop Programme
PB - EAGE Publishing BV
T2 - 81st EAGE Conference and Exhibition 2019 Workshop Programme
Y2 - 3 June 2019 through 6 June 2019
ER -
ID: 24159189