Acoustic response of reservoir sandstones during injection of supercritical CO2
We report experimental results for acoustic response measurements conducted during injection of supercriticalcarbon dioxide into a brine saturated sandstone plug. We measured P- and S-wave velocities (Vp, Vs) as a functionof effective stress and CO2 saturation in a sandstone plug. We demonstrate tha...
| Main Authors: | , , |
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| Format: | Journal Article |
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Elsevier
2014
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| Online Access: | http://hdl.handle.net/20.500.11937/49453 |
| _version_ | 1848758242718515200 |
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| author | Lebedev, Maxim Iglauer, Stefan Mikhaltsevitch, Vassili |
| author2 | Tim Dixon |
| author_facet | Tim Dixon Lebedev, Maxim Iglauer, Stefan Mikhaltsevitch, Vassili |
| author_sort | Lebedev, Maxim |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We report experimental results for acoustic response measurements conducted during injection of supercriticalcarbon dioxide into a brine saturated sandstone plug. We measured P- and S-wave velocities (Vp, Vs) as a functionof effective stress and CO2 saturation in a sandstone plug. We demonstrate that Gassmann’s fluid substitutionprocedure matches the experimental results well for this sample. A 3.5% reduction of P-wave velocity after injectionof two pore volumes of CO2 into brine-saturated sample was measured. We conclude that measurement of Vp can beused to estimate CO2 saturations in rock. In addition, x-ray computer tomography (CT) images were acquired atreservoir conditions with a resolution of 33 µm, which provided more detailed information about CO2 saturationsand distributions in the rock. It is envisaged that these techniques (seismic and CT) can be combined in the future toenable a more holistic understanding of how fluid-fluid displacement processes are coupled with the acousticresponse characteristics of the rock. |
| first_indexed | 2025-11-14T09:40:53Z |
| format | Journal Article |
| id | curtin-20.500.11937-49453 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:40:53Z |
| publishDate | 2014 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-494532023-02-27T07:34:26Z Acoustic response of reservoir sandstones during injection of supercritical CO2 Lebedev, Maxim Iglauer, Stefan Mikhaltsevitch, Vassili Tim Dixon Howard Herzog Sian Twinning ultrasonic rock physics scCO2 injection micro computed tomography We report experimental results for acoustic response measurements conducted during injection of supercriticalcarbon dioxide into a brine saturated sandstone plug. We measured P- and S-wave velocities (Vp, Vs) as a functionof effective stress and CO2 saturation in a sandstone plug. We demonstrate that Gassmann’s fluid substitutionprocedure matches the experimental results well for this sample. A 3.5% reduction of P-wave velocity after injectionof two pore volumes of CO2 into brine-saturated sample was measured. We conclude that measurement of Vp can beused to estimate CO2 saturations in rock. In addition, x-ray computer tomography (CT) images were acquired atreservoir conditions with a resolution of 33 µm, which provided more detailed information about CO2 saturationsand distributions in the rock. It is envisaged that these techniques (seismic and CT) can be combined in the future toenable a more holistic understanding of how fluid-fluid displacement processes are coupled with the acousticresponse characteristics of the rock. 2014 Journal Article http://hdl.handle.net/20.500.11937/49453 10.1016/j.egypro.2014.11.463 http://creativecommons.org/licenses/by-nc-nd/3.0/ Elsevier fulltext |
| spellingShingle | ultrasonic rock physics scCO2 injection micro computed tomography Lebedev, Maxim Iglauer, Stefan Mikhaltsevitch, Vassili Acoustic response of reservoir sandstones during injection of supercritical CO2 |
| title | Acoustic response of reservoir sandstones during injection of supercritical CO2 |
| title_full | Acoustic response of reservoir sandstones during injection of supercritical CO2 |
| title_fullStr | Acoustic response of reservoir sandstones during injection of supercritical CO2 |
| title_full_unstemmed | Acoustic response of reservoir sandstones during injection of supercritical CO2 |
| title_short | Acoustic response of reservoir sandstones during injection of supercritical CO2 |
| title_sort | acoustic response of reservoir sandstones during injection of supercritical co2 |
| topic | ultrasonic rock physics scCO2 injection micro computed tomography |
| url | http://hdl.handle.net/20.500.11937/49453 |