eprintid: 1777 rev_number: 16 eprint_status: archive userid: 6 dir: disk0/00/00/17/77 datestamp: 2016-12-20 12:49:42 lastmod: 2017-02-08 12:22:23 status_changed: 2016-12-20 12:49:42 type: book_section metadata_visibility: show creators_name: Asanuma, Hiroshi creators_name: Izumi, Tanetomo creators_name: Niitsuma, Hiroaki creators_name: Jones, Rob creators_name: Baria, Roy title: Delineation of Reservoir Structure by the Coherence Collapsing Relocation Technique of Microseismicity subjects: MP2 subjects: MP4 subjects: RA1 subjects: RF1 subjects: SG divisions: IP4 divisions: SHEER-6 full_text_status: none keywords: : microseismicity, collapsing, coherencecollapsing , HDR/HWR, MTC, Soultz, Cooper Basin note: Congress held April 24-29, 2005, in Antalya, Turkey 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. date: 2005-04 date_type: published publisher: International Geothermal Association pagerange: 3775-3779 isbn: 975-98332-0-4 book_title: Proceedings World Geothermal Congress 2005 official_url: https://www.geothermal-library.org/index.php?mode=pubs&action=view&record=8001228 access_IS-EPOS: limited owner: Publisher citation: 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