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A Comparison Of Microseismic Source Location Methods: Probabilistic Vs. Migration-Based Approaches
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Seventh EAGE Workshop on Passive Seismic 2018, Mar 2018, Volume 2018, p.1 - 5
Abstract
Localization of induced microseismic events is a vital element of passive seismic monitoring. Currently, a variety of techniques for localization of microseismic events are available in the literature. These techniques employ various information from the recorded wavefields and are based on different theoretical considerations. In this report, we compared the location results, obtained by three different techniques, namely traveltime inversion, diffraction stacking and cross-correlation stacking. We found out that for the majority of events the location results obtained with three different methods almost perfectly coincide. Furthermore, we observed that the mismatch of the location results can be used as a quality control tool to identify misinterpretation of phases, errors of arrival time picking, multiple events, etc.