TY - JOUR

T1 - Numerical study of fracture connectivity response in seismic wavefields

AU - Novikov, Mikhail

AU - Caspari, Eva

AU - Lisitsa, Vadim

AU - Quintal, Beatriz

AU - Rubino, J. Germán

AU - Holliger, Klaus

N1 - Funding Information: This work has been completed within the Swiss Competence Center on Energy Research - Supply of Electricity with support of the Swiss Commission for Technology and Innovation. V. Lisitsa and M. Novikov are thankful to the Russian Foundation for Basic Research grants no. 16-05-00800, for financial support of the research. Simulations of seismic wave propagation were performed on clusters of the Siberian Supercomputer Center and cluster ?Lomonosov? of the Moscow State University. Publisher Copyright: © 2017 SEG.

PY - 2017/8/17

Y1 - 2017/8/17

N2 - Several seismic attenuation mechanisms in fractured porous media are currently under intense study. This notably includes pressure diffusion phenomena, such as wave-induced fluid flow (WIFF), and dynamic effects, such as scattering and Biot's global flow in fluid-filled highly permeable fractures. The effects of the former can be studied using a quasi-static approximation of Biot's poroelastic equations whereas the investigation of the latter requires simulations of wave propagation in poroelatic media. In this work, we illustrate that the diffusion effects predicted by quasi-static simulations are properly captured in the results of dynamic modelling. Our results also demonstrate that the interplay of WIFF and scattering is complex and depends on the geometry and properties of the fracture network.

AB - Several seismic attenuation mechanisms in fractured porous media are currently under intense study. This notably includes pressure diffusion phenomena, such as wave-induced fluid flow (WIFF), and dynamic effects, such as scattering and Biot's global flow in fluid-filled highly permeable fractures. The effects of the former can be studied using a quasi-static approximation of Biot's poroelastic equations whereas the investigation of the latter requires simulations of wave propagation in poroelatic media. In this work, we illustrate that the diffusion effects predicted by quasi-static simulations are properly captured in the results of dynamic modelling. Our results also demonstrate that the interplay of WIFF and scattering is complex and depends on the geometry and properties of the fracture network.

UR - http://www.scopus.com/inward/record.url?scp=85052369346&partnerID=8YFLogxK

U2 - 10.1190/segam2017-17659066.1

DO - 10.1190/segam2017-17659066.1

M3 - Conference article

AN - SCOPUS:85052369346

SP - 3786

EP - 3790

JO - SEG Technical Program Expanded Abstracts

JF - SEG Technical Program Expanded Abstracts

SN - 1052-3812

T2 - Society of Exploration Geophysicists International Exposition and 87th Annual Meeting, SEG 2017

Y2 - 24 September 2017 through 29 September 2017

ER -