Monitoring CO2 injection into a saline aquifer: Otway Project feasibility study
A key objective of Stage 2 of the CO2CRC Otway Project is to explore the ability of geophysical methods to detect and monitor injection of greenhouse gas into a saline formation. For this purpose, injection of some 10,000 – 30,000 t of gas mixture (80/20% CO2/CH4 by mole fraction in the supercritica...
| Main Authors: | , , , , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Conference Paper |
| Published: |
SEG
2012
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/28502 |
| _version_ | 1848752554518773760 |
|---|---|
| author | Pevzner, Roman Galvin, R. Madadi, Mahyar Urosevic, Milovan Caspari, Eva Gurevich, Boris Lumley, D. Shulakova, V. Cinar, Y. Tcheverda, V. |
| author2 | SEG |
| author_facet | SEG Pevzner, Roman Galvin, R. Madadi, Mahyar Urosevic, Milovan Caspari, Eva Gurevich, Boris Lumley, D. Shulakova, V. Cinar, Y. Tcheverda, V. |
| author_sort | Pevzner, Roman |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | A key objective of Stage 2 of the CO2CRC Otway Project is to explore the ability of geophysical methods to detect and monitor injection of greenhouse gas into a saline formation. For this purpose, injection of some 10,000 – 30,000 t of gas mixture (80/20% CO2/CH4 by mole fraction in the supercritical state) into the Paaratte formation, a saline aquifer located at a depth of about 1,400 m is planned. Before such an injection experiment is undertaken, we assess the feasibility of geophysical monitoring using computer modeling. To examine the detectability of the plume we need to estimate the time-lapse signal and time-lapse noise. The time lapse signal is modeled using flow simulations, fluid substitution and seismic forward modeling. The level of time lapse noise is estimated from existing time-lapse 3D data in the area. The results confirm that the plume stemming from the injection of 10,000 t of CO2 / CH4 will probably be detectable, and that an increase of the injection volume to 30,000 t will give a significantly higher confidence of the plume detection. |
| first_indexed | 2025-11-14T08:10:28Z |
| format | Conference Paper |
| id | curtin-20.500.11937-28502 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:10:28Z |
| publishDate | 2012 |
| publisher | SEG |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-285022018-12-14T00:59:26Z Monitoring CO2 injection into a saline aquifer: Otway Project feasibility study Pevzner, Roman Galvin, R. Madadi, Mahyar Urosevic, Milovan Caspari, Eva Gurevich, Boris Lumley, D. Shulakova, V. Cinar, Y. Tcheverda, V. SEG sequestration 4D modeling seismic rock physics A key objective of Stage 2 of the CO2CRC Otway Project is to explore the ability of geophysical methods to detect and monitor injection of greenhouse gas into a saline formation. For this purpose, injection of some 10,000 – 30,000 t of gas mixture (80/20% CO2/CH4 by mole fraction in the supercritical state) into the Paaratte formation, a saline aquifer located at a depth of about 1,400 m is planned. Before such an injection experiment is undertaken, we assess the feasibility of geophysical monitoring using computer modeling. To examine the detectability of the plume we need to estimate the time-lapse signal and time-lapse noise. The time lapse signal is modeled using flow simulations, fluid substitution and seismic forward modeling. The level of time lapse noise is estimated from existing time-lapse 3D data in the area. The results confirm that the plume stemming from the injection of 10,000 t of CO2 / CH4 will probably be detectable, and that an increase of the injection volume to 30,000 t will give a significantly higher confidence of the plume detection. 2012 Conference Paper http://hdl.handle.net/20.500.11937/28502 10.1190/segam2012-0405.1 SEG restricted |
| spellingShingle | sequestration 4D modeling seismic rock physics Pevzner, Roman Galvin, R. Madadi, Mahyar Urosevic, Milovan Caspari, Eva Gurevich, Boris Lumley, D. Shulakova, V. Cinar, Y. Tcheverda, V. Monitoring CO2 injection into a saline aquifer: Otway Project feasibility study |
| title | Monitoring CO2 injection into a saline aquifer: Otway Project feasibility study |
| title_full | Monitoring CO2 injection into a saline aquifer: Otway Project feasibility study |
| title_fullStr | Monitoring CO2 injection into a saline aquifer: Otway Project feasibility study |
| title_full_unstemmed | Monitoring CO2 injection into a saline aquifer: Otway Project feasibility study |
| title_short | Monitoring CO2 injection into a saline aquifer: Otway Project feasibility study |
| title_sort | monitoring co2 injection into a saline aquifer: otway project feasibility study |
| topic | sequestration 4D modeling seismic rock physics |
| url | http://hdl.handle.net/20.500.11937/28502 |