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Final Conference - Vilnius, Lithuania
Final Conference - Vilnius, Lithuania
12-15 February 2008 Le Méridien Villon
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Analysis of microseismic events induced by stimulation treatments at Geothermal Research Well GtGrSk4/05 in Groß Schönebeck, Germany
Spectral analysis was performed on a group of microseismic events (ML: -1.9 to -1.1) that occurred during a stimulation experiment at the Geothermal Resesearch Well GtGrSk4/05 in Germany. These events were recorded by a downhole 3-component sensor (natural frequency 15Hz, sampling rate 1000Hz) located in the accompanying borehole E GrSk 3/90 at 3800m depth, close (~500m) to the injection point. The seismicity level was very low and only 70 events were detected and located during an injection period of 6 days. They exhibited strong spatial and temporal clustering and mainly occurred towards the end of stimulation phases. Calculated source parameters provide the evidence for the dependence between the static stress drop and seismic moment as well as for scaling of apparent stress with seismic moment.
Id: 31
Place: Le Méridien Villon
Vilnius, Lithuania
Starting date:
13-Feb-2008   10:45
Duration: 20'
Contribution type: poster
Primary Authors: KWIATEK, Grzegorz (GeoForschungsZentrum Potsdam)
Co-Authors: SCHULZE, Albrecht (GeoForschungsZentrum Potsdam)
SCHULTE, Thomas (GeoForschungsZentrum Potsdam)
ZIMMERMANN, Günter (GeoForschungsZentrum Potsdam)
HUENGES, Ernst (GeoForschungsZentrum Potsdam)
BOHNHOFF, Marco (GeoForschungsZentrum Potsdam)
DRESEN, Georg (GeoForschungsZentrum Potsdam)
Presenters: KWIATEK, Grzegorz
Material: poster Poster
Included in track: Poster Session - Drilling, stimulation and reservoir assessment

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