Estimation of changes in the reservoir reflection coefficient due to CO2 injection at Ketzin Site, Germany
Seismic amplitude information and data from an injection well (IW) and an observation well (OW2) are used to estimate reflection coefficients. Seismic volumes are extracted near the two boreholes from a baseline and a monitor survey. An anhydrite layer above the reservoir generates a high amplitude...
| Main Authors: | , , , |
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| Format: | Conference Paper |
| Published: |
Society of Petroleum Engineers
2011
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| Online Access: | http://www.earthdoc.org/publication/publicationdetails/?publication=50931 http://hdl.handle.net/20.500.11937/42228 |
| _version_ | 1848756362207559680 |
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| author | Yang, C. Juhlin, Christopher Fan, W. Ivanova, A. |
| author_facet | Yang, C. Juhlin, Christopher Fan, W. Ivanova, A. |
| author_sort | Yang, C. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Seismic amplitude information and data from an injection well (IW) and an observation well (OW2) are used to estimate reflection coefficients. Seismic volumes are extracted near the two boreholes from a baseline and a monitor survey. An anhydrite layer above the reservoir generates a high amplitude reflection and this is used for calibration. The amplitude equation of Ghaderi and Landro (2009) is used to estimate R0 for the reservoir. In the IW it is between 0.1-0.12 and in OW2 it is between 0.1-0.14 for the baseline survey. These values correspond well to logging data, providing confidence in our approach. We use the same method on the monitor survey and find R0 in the IW is now in the range 0.26-0.31 and R0 in OW2 is now 0.13-0.16, indicating lower CO2 saturation in OW2. |
| first_indexed | 2025-11-14T09:10:59Z |
| format | Conference Paper |
| id | curtin-20.500.11937-42228 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:10:59Z |
| publishDate | 2011 |
| publisher | Society of Petroleum Engineers |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-422282017-01-30T14:58:12Z Estimation of changes in the reservoir reflection coefficient due to CO2 injection at Ketzin Site, Germany Yang, C. Juhlin, Christopher Fan, W. Ivanova, A. Seismic amplitude information and data from an injection well (IW) and an observation well (OW2) are used to estimate reflection coefficients. Seismic volumes are extracted near the two boreholes from a baseline and a monitor survey. An anhydrite layer above the reservoir generates a high amplitude reflection and this is used for calibration. The amplitude equation of Ghaderi and Landro (2009) is used to estimate R0 for the reservoir. In the IW it is between 0.1-0.12 and in OW2 it is between 0.1-0.14 for the baseline survey. These values correspond well to logging data, providing confidence in our approach. We use the same method on the monitor survey and find R0 in the IW is now in the range 0.26-0.31 and R0 in OW2 is now 0.13-0.16, indicating lower CO2 saturation in OW2. 2011 Conference Paper http://hdl.handle.net/20.500.11937/42228 http://www.earthdoc.org/publication/publicationdetails/?publication=50931 Society of Petroleum Engineers restricted |
| spellingShingle | Yang, C. Juhlin, Christopher Fan, W. Ivanova, A. Estimation of changes in the reservoir reflection coefficient due to CO2 injection at Ketzin Site, Germany |
| title | Estimation of changes in the reservoir reflection coefficient due to CO2 injection at Ketzin Site, Germany |
| title_full | Estimation of changes in the reservoir reflection coefficient due to CO2 injection at Ketzin Site, Germany |
| title_fullStr | Estimation of changes in the reservoir reflection coefficient due to CO2 injection at Ketzin Site, Germany |
| title_full_unstemmed | Estimation of changes in the reservoir reflection coefficient due to CO2 injection at Ketzin Site, Germany |
| title_short | Estimation of changes in the reservoir reflection coefficient due to CO2 injection at Ketzin Site, Germany |
| title_sort | estimation of changes in the reservoir reflection coefficient due to co2 injection at ketzin site, germany |
| url | http://www.earthdoc.org/publication/publicationdetails/?publication=50931 http://hdl.handle.net/20.500.11937/42228 |