Effect of chemical calcite dissolution by CO2 on seismic velocities and attenuation

Standard

Effect of chemical calcite dissolution by CO2 on seismic velocities and attenuation - Numerical study. / Khachkova, T.; Novikov, M.; Lisitsa, V. et al.

81st EAGE Conference and Exhibition 2019. EAGE Publishing BV, 2019. (81st EAGE Conference and Exhibition 2019).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review

Harvard

Khachkova, T, Novikov, M , Lisitsa, V, Zhang, Y & Lebedev, M 2019, Effect of chemical calcite dissolution by CO2 on seismic velocities and attenuation - Numerical study. in 81st EAGE Conference and Exhibition 2019. 81st EAGE Conference and Exhibition 2019, EAGE Publishing BV, 81st EAGE Conference and Exhibition 2019, London, United Kingdom, 03.06.2019. https://doi.org/10.3997/2214-4609.201901426

APA

Khachkova, T., Novikov, M., Lisitsa, V., Zhang, Y., & Lebedev, M. (2019). Effect of chemical calcite dissolution by CO2 on seismic velocities and attenuation - Numerical study. In 81st EAGE Conference and Exhibition 2019 (81st EAGE Conference and Exhibition 2019). EAGE Publishing BV. https://doi.org/10.3997/2214-4609.201901426

Vancouver

Khachkova T, Novikov M , Lisitsa V, Zhang Y, Lebedev M. Effect of chemical calcite dissolution by CO2 on seismic velocities and attenuation - Numerical study. In 81st EAGE Conference and Exhibition 2019. EAGE Publishing BV. 2019. (81st EAGE Conference and Exhibition 2019). doi: 10.3997/2214-4609.201901426

Author

Khachkova, T. ; Novikov, M. ; Lisitsa, V. et al. / Effect of chemical calcite dissolution by CO2 on seismic velocities and attenuation - Numerical study. 81st EAGE Conference and Exhibition 2019. EAGE Publishing BV, 2019. (81st EAGE Conference and Exhibition 2019).

BibTeX

@inproceedings{53b836525a8045a5b19eea506b54fcb9,

title = "Effect of chemical calcite dissolution by CO2 on seismic velocities and attenuation - Numerical study",

abstract = "Chemical reaction caused by CO2 injection into host rock may significantly change its physical properties. In particular, CO2-enriched brine presence within the fracture-porous carbonate reservoirs results in weakening of fracture material and increases its permeability and porosity as wel as tortuosity. In our study, we estimate numerically the material parameters of a limestone using its CT-images. Next we apply obtained physical properties of the material in the numerical modeling of seismic wave propagation in fractured-porous media with different connectivity degree of the fractures. Results show, that the partial dissolution of the fracture-filling material leads to stronger overall seismic attenuation due to the wave-induced fluid flow and velocity drop. However, this attenuation mechanism impact within connected fractures remains local, and fracture-to-fracture fluid flow give no significant contribution to the overall attenuation.",

author = "T. Khachkova and M. Novikov and V. Lisitsa and Y. Zhang and M. Lebedev",

note = "Publisher Copyright: {\textcopyright} 81st EAGE Conference and Exhibition 2019. All rights reserved. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.; 81st EAGE Conference and Exhibition 2019 ; Conference date: 03-06-2019 Through 06-06-2019",

year = "2019",

month = jun,

day = "3",

doi = "10.3997/2214-4609.201901426",

language = "English",

series = "81st EAGE Conference and Exhibition 2019",

publisher = "EAGE Publishing BV",

booktitle = "81st EAGE Conference and Exhibition 2019",

address = "Netherlands",

}

RIS

TY - GEN

T1 - Effect of chemical calcite dissolution by CO2 on seismic velocities and attenuation - Numerical study

AU - Khachkova, T.

AU - Novikov, M.

AU - Lisitsa, V.

AU - Zhang, Y.

AU - Lebedev, M.

PY - 2019/6/3

Y1 - 2019/6/3

N2 - Chemical reaction caused by CO2 injection into host rock may significantly change its physical properties. In particular, CO2-enriched brine presence within the fracture-porous carbonate reservoirs results in weakening of fracture material and increases its permeability and porosity as wel as tortuosity. In our study, we estimate numerically the material parameters of a limestone using its CT-images. Next we apply obtained physical properties of the material in the numerical modeling of seismic wave propagation in fractured-porous media with different connectivity degree of the fractures. Results show, that the partial dissolution of the fracture-filling material leads to stronger overall seismic attenuation due to the wave-induced fluid flow and velocity drop. However, this attenuation mechanism impact within connected fractures remains local, and fracture-to-fracture fluid flow give no significant contribution to the overall attenuation.

AB - Chemical reaction caused by CO2 injection into host rock may significantly change its physical properties. In particular, CO2-enriched brine presence within the fracture-porous carbonate reservoirs results in weakening of fracture material and increases its permeability and porosity as wel as tortuosity. In our study, we estimate numerically the material parameters of a limestone using its CT-images. Next we apply obtained physical properties of the material in the numerical modeling of seismic wave propagation in fractured-porous media with different connectivity degree of the fractures. Results show, that the partial dissolution of the fracture-filling material leads to stronger overall seismic attenuation due to the wave-induced fluid flow and velocity drop. However, this attenuation mechanism impact within connected fractures remains local, and fracture-to-fracture fluid flow give no significant contribution to the overall attenuation.

UR - http://www.scopus.com/inward/record.url?scp=85086057197&partnerID=8YFLogxK

U2 - 10.3997/2214-4609.201901426

DO - 10.3997/2214-4609.201901426

M3 - Conference contribution

AN - SCOPUS:85086057197

T3 - 81st EAGE Conference and Exhibition 2019

BT - 81st EAGE Conference and Exhibition 2019

PB - EAGE Publishing BV

T2 - 81st EAGE Conference and Exhibition 2019

Y2 - 3 June 2019 through 6 June 2019

ER -

ID: 24487746