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| Titel |
Seismic modeling of CO2-injection based EGR (project CLEAN) |
| VerfasserIn |
L. Houpt, S. Buske |
| Konferenz |
EGU General Assembly 2009
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 11 (2009) |
| Datensatznummer |
250024378
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| Zusammenfassung |
| The joint research project CLEAN (CO2 Largescale EGR in the Altmark Natural-gas field) is
a scientific program accompanying the Enhanced-Gas-Recovery (EGR) project within the
second largest natural gas field in Europe - the Altmark gas field.
Within this program a set of active and passive seismic surveys are planned in order to
monitor the spatial and temporal evolution as well as the related processes of CO2 injection
into the reservoir.
These experiments comprise time-lapse 3D-VSP/MSP (vertical/moving-source-profiling)
surveys as well as the installation of a borehole seismometer network for monitoring and
analysis of injection induced seismicity.
For both configurations we have performed elastic finite-difference simulations of the
seismic wavefield based on a given subsurface model and for a range of injection-induced
variations of seismic parameters.
We will show the results and discuss the findings in terms of survey design, the estimation
of expected changes in the seismic wavefield (reflectivity, traveltime, etc.), the repeatability of
the measurements and the understanding of the limits for a rock-physical interpretation of the
observed effects. |
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