Parameter tuning of differential evolution algorithm for microseismic location
- Lei Li (Central South University) | Yujiang Xie (University of Hamburg) | Dirk Gajewski (University of Hamburg) | Yuyang Tan (University of Science and Technology of China) | Jingqiang Tan (Central South University)
- Document ID
- Society of Exploration Geophysicists
- 2018 SEG International Exposition and Annual Meeting, 14-19 October, Anaheim, California, USA
- Publication Date
- Document Type
- Conference Paper
- 2018. Society of Exploration Geophysicists
- Microseismic, Passive imaging, Stacking, Optimization
- 0 in the last 30 days
- 20 since 2007
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Fast and accurate source location is crucial for microseismic monitoring. Stochastic optimization algorithm is derivative-free and just need random solutions as the initial model, and it is quite suitable for non-linear seismic location problem. In this work, we utilize differential evolution, which is a fast and robust global optimization method and belongs to evolutionary algorithms, to speed up microseismic location with waveform-based methods. Parameter tuning of differential evolution for two waveform-based location methods, namely diffraction stacking and cross correlation stacking, is studied and reference ranges of individual parameters are obtained. Field data examples indicate that parameter tuning is necessary to ensure the performance of differential evolution, and the convergence features of the imaging functions of different stacking operators for microseismic source location can be revealed.
Presentation Date: Wednesday, October 17, 2018
Start Time: 9:20:00 AM
Location: Poster Station 15
Presentation Type: Poster
|File Size||483 KB||Number of Pages||5|
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