Automatic Wave Picking Technique for Multi-Component Microseismicity and Its Practical Application to on Site Analysis in HDR Development
- Key words
- microseismicity, HDR, on site analysis
- Location
- Soultz-sous-Forets, France; Cooper Basin, Australia
- Conference
- World Geothermal Congress
- Year
- 2005
- Session
- 16. Advanced (HDR, Magma, Geopressure)
- Language
- English
- Paper number
- 1617
Full text
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Abstract
A more reliable automatic picking technique has been developed and tested during onsite analyses of microseismicity in practical Hot Dry Rock developments. The technique imitates human procedures by a combination of various signal processing techniques. A trial using laboratory data and past field waveforms from the Soultz HDR project in 2000 indicated good reliability as the source locations were very similar to those based on manual picking. By using the technique, about 12,000 events were successfully located during onsite analysis both at Soultz and Australia in 2003. The observed reliability of the source locations suggests that in the future this technique may be used for more precise onsite analysis as more complex techniques can be applied using the automatic picking of the P- and S-wave arrivals.
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