During the period of 2 - 30 May, another seismic experiment took place at the Ketzin site for the monitoring of CO2 storage. This experiment aimed at testing unconventional seismic sources for the long-term reservoir monitoring.
The measurements are carried out within a collaboration of GFZ and its Dutch partner TNO as part of the EU funded research project CO2CARE. Two different seismic sources were used (see figures).
1. Linear vibro source (prototype), owned by TU Delft.
Frequency range: ~1 - 1000 Hz. Operating daily for one hour.
2. Magnetostrictive vibro source of GFZ (GeoSonar).
Frequency range: ~100 - 6000 Hz. Four source points, operating for 6-8 hours on each point.
Figure 1:
Linear vibration source (TU Delft) on the source point, with control unit in
garden house (Photo: H. Richter, GFZ).
Figure 2:
Mobile magnetostrictive vibro source (GeoSonar) on source point near the
injection well (Photo: H. Richter, GFZ)