Asanuma, Hiroshi and Izumi, Tanetomo and Niitsuma, Hiroaki and Jones, Rob and Baria, Roy (2005) Delineation of Reservoir Structure by the Coherence Collapsing Relocation Technique of Microseismicity. In: Proceedings World Geothermal Congress 2005. International Geothermal Association, pp. 3775-3779. ISBN 975-98332-0-4
Full text not available from this repository.Abstract
The authors have investigated a variation of the collapsing method that tries to bridge collapsing and multiplet analysis techniques utilizing the advantages of each of the methods. The collapsing method is a mapping method for relocating microseismicity that involves utilizing information from all the events in the data set. In the version of the collapsing method introduced here the idea of the coherence of the waveforms is also incorporated into the method (coherence collapsing). The new method aims to bridge absolute and relative mapping techniques, because this method has a nature to selectively relocate a group of multiplets to a point. The principle of the coherence collapsing method was developed from the concept of the original collapsing method, and parameters in the analysis are optimized from synthetic studies and from real data. The relocated events in simulation revealed that the coherence collapsing method has the ability to estimate absolute location of multiplets in a seismic cloud. This method was applied to a part of the seismic data set of the Soultz 1993, 2000 and 2003 stimulations and Australian 2003 stimulation in Cooper Basin. The relocation of events with high mutual coherency showed structures consistent with multiplet analysis suggesting the advantage of this method for semirealtime mapping of the multiplets.
| Item Type: | Book Section |
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| Additional Information: | Congress held April 24-29, 2005, in Antalya, Turkey |
| Uncontrolled Keywords: | : microseismicity, collapsing, coherencecollapsing , HDR/HWR, MTC, Soultz, Cooper Basin |
| Subjects: | Methodology > Method and procesing > Collective properties of seismicity Methodology > Method and procesing > Technology-seismicity interaction Region > Australia > Copper Basin Region > France > Soultz-sous-Forets Inducing technology > Geothermal energy production |
| Project: | EPOS-IP > SOULTZ-SOUS-FORETS: stimulation and production of geothermal energy SHEER project > COOPER BASIN: geothermal energy injection experiment |