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SE | Volume 10, issue 4
Solid Earth, 10, 1321–1336, 2019
https://doi.org/10.5194/se-10-1321-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Solid Earth, 10, 1321–1336, 2019
https://doi.org/10.5194/se-10-1321-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 08 Aug 2019

Research article | 08 Aug 2019

Seismic attenuation and dispersion in poroelastic media with fractures of variable aperture distributions

Simón Lissa et al.
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Cited articles  
Amalokwu, K., Chapman, M., Best, A. I., Minshull, T. A., and Li, X. Y.: Water saturation effects on P-wave anisotropy in synthetic sandstone with aligned fractures, Geophys. J. Int., 202, 1088–1095, https://doi.org/10.1093/gji/ggv192, 2015. a
Barbosa, N. D., Rubino, J. G., Caspari, E., Milani, M., and Holliger, K.: Fluid pressure diffusion effects on the seismic reflectivity of a single fracture, J. Acoust. Soc. Am., 140, 2554–2570, https://doi.org/10.1121/1.4964339, 2016. a, b
Barbosa, N. D., Caspari, E., Rubino, J. G., Greenwood, A., Baron, L., and Holliger, K.: Estimation of fracture compliance from attenuation and velocity analysis of full waveform sonic log data, submitted, J. Geophys. Res., 124, 2738–2761, https://doi.org/10.1029/2018JB016507, 2019. a
Biot, M. A.: General theory of three-dimensional consolidation, J. Appl. Phys., 12, 155–164, https://doi.org/10.1063/1.1712886, 1941. a, b, c
Biot, M. A.: Mechanics of deformation and acoustic propagation in porous media, J. Appl. Phys., 33, 1482–1498, https://doi.org/10.1063/1.1728759, 1962. a, b
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We quantify the effects that 3-D fractures with realistic distributions of aperture have on seismic wave attenuation and velocity dispersion. Attenuation and dispersion are caused by fluid pressure diffusion between the fractures and the porous background. We show that (i) both an increase in the density of contact areas and a decrease in their correlation length reduce attenuation and (ii) a simple planar fracture can be used to emulate the seismic response of realistic fracture models.
We quantify the effects that 3-D fractures with realistic distributions of aperture have on...
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