Modeling fault activation and seismicity in geologic carbon storage and shale-gas fracturing: Under what conditions could a felt seismic event be induced?
- Jonny Rutqvist (Lawrence Berkeley National Laboratory) | Antonio Rinaldi (Swiss Federal Institute of Technology) | Frederic Cappa (Geoazur)
- Document ID
- Society of Exploration Geophysicists
- 2017 SEG International Exposition and Annual Meeting, 24-29 September, Houston, Texas
- Publication Date
- Document Type
- Conference Paper
- 2017. Society of Exploration Geophysicists
- Faults, Geomechanics, Shale gas, Modeling, Earthquake
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- 27 since 2007
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Coupled fluid flow and geomechanical modeling with explicit and physics based modeling of fault activation is employed to investigate under what conditions a felt seismic event could be induced during deep injection activities associated with Geologic Carbon Storage (GCS) or shale gas fracturing. The analysis shows that for the case representative of GCS, felt seismic events (e.g. moment magnitude 4) could be induced on reservoir-crossing faults whereas in the case representing shale-gas fracturing, only smaller magnitude events, that would likely be unfelt, were calculated. In any case, the initial stress field as well as the rock properties, whether more ductile or brittle, are important conditions that will determine whether a felt seismic events could be induced.
Presentation Date: Tuesday, September 26, 2017
Start Time: 11:00 AM
Presentation Type: ORAL
|File Size||1 MB||Number of Pages||5|
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