Thermo-hydrogeomechanical modeling of vertical ground deformation during the operation of the Mutnovskii Geothermal Field
Abstract
Vertical ground displacements at the Mutnovskii Geothermal Field were measured annually during the 2004–2013 period using a network of borehole markers. Three areas have been identified where the vertical displacements were different in character. Positive vertical deformation (2–5 mm/yr) was recorded in the middle of the Dachnyi Area in 2005–2006, giving way to a later stabilization. The North Test Area where the exhaust heat carrier was reinjected did not show any substantial deformation during the 2003–2006 period. This was followed by an uplift in 2006–2008 (6–7 mm/yr) and then by a subsidence (5–8 mm/yr) in 2009–2013. No vertical deformation worth mentioning was recorded in the Verkhne-Mutnovskii Area prior to 2008, but a rapid subsidence began at a rate of 6–18 mm/yr after 2008. Here, we used the TOUGH-FLAC software to analyze vertical ground deformation. This program is used to perform thermo-hydrogeomechanical (THM) modeling based on the previous TOUGH2 model. THM modeling can explain relative vertical deformation during the exploitation of the Mutnovskii Geothermal Field by separating the geothermal field into two compartments by the Osnovnoi fault, as the two have different tectonic settings and petrophysical properties.
- Authors:
-
- OAO Geoterm, Petropavlovsk-Kamchatsky (Russia)
- Russian Academy of Sciences (RAS), Petropavlovsk-Kamchatskii (Russian Federation). Inst. of Volcanology and Seismology
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Geothermal Technologies Office
- OSTI Identifier:
- 1471009
- Grant/Contract Number:
- AC02-05CH11231
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Volcanology and Seismology
- Additional Journal Information:
- Journal Volume: 10; Journal Issue: 2; Journal ID: ISSN 0742-0463
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 15 GEOTHERMAL ENERGY; Heat Carrier; Geothermal Field; Vertical Deformation; Geothermal Reservoir; Vertical Ground
Citation Formats
Basmanov, O. L., Kiryukhin, A. V., Maguskin, M. A., Dvigalo, V. N., and Rutqvist, J. Thermo-hydrogeomechanical modeling of vertical ground deformation during the operation of the Mutnovskii Geothermal Field. United States: N. p., 2016.
Web. doi:10.1134/S0742046316020032.
Basmanov, O. L., Kiryukhin, A. V., Maguskin, M. A., Dvigalo, V. N., & Rutqvist, J. Thermo-hydrogeomechanical modeling of vertical ground deformation during the operation of the Mutnovskii Geothermal Field. United States. https://doi.org/10.1134/S0742046316020032
Basmanov, O. L., Kiryukhin, A. V., Maguskin, M. A., Dvigalo, V. N., and Rutqvist, J. Tue .
"Thermo-hydrogeomechanical modeling of vertical ground deformation during the operation of the Mutnovskii Geothermal Field". United States. https://doi.org/10.1134/S0742046316020032. https://www.osti.gov/servlets/purl/1471009.
@article{osti_1471009,
title = {Thermo-hydrogeomechanical modeling of vertical ground deformation during the operation of the Mutnovskii Geothermal Field},
author = {Basmanov, O. L. and Kiryukhin, A. V. and Maguskin, M. A. and Dvigalo, V. N. and Rutqvist, J.},
abstractNote = {Vertical ground displacements at the Mutnovskii Geothermal Field were measured annually during the 2004–2013 period using a network of borehole markers. Three areas have been identified where the vertical displacements were different in character. Positive vertical deformation (2–5 mm/yr) was recorded in the middle of the Dachnyi Area in 2005–2006, giving way to a later stabilization. The North Test Area where the exhaust heat carrier was reinjected did not show any substantial deformation during the 2003–2006 period. This was followed by an uplift in 2006–2008 (6–7 mm/yr) and then by a subsidence (5–8 mm/yr) in 2009–2013. No vertical deformation worth mentioning was recorded in the Verkhne-Mutnovskii Area prior to 2008, but a rapid subsidence began at a rate of 6–18 mm/yr after 2008. Here, we used the TOUGH-FLAC software to analyze vertical ground deformation. This program is used to perform thermo-hydrogeomechanical (THM) modeling based on the previous TOUGH2 model. THM modeling can explain relative vertical deformation during the exploitation of the Mutnovskii Geothermal Field by separating the geothermal field into two compartments by the Osnovnoi fault, as the two have different tectonic settings and petrophysical properties.},
doi = {10.1134/S0742046316020032},
journal = {Journal of Volcanology and Seismology},
number = 2,
volume = 10,
place = {United States},
year = {Tue Mar 01 00:00:00 EST 2016},
month = {Tue Mar 01 00:00:00 EST 2016}
}
Web of Science
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