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New Techniques to Improve Microseismic Event Detection and Location in Surface Data
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Second EAGE Workshop on Permanent Reservoir Monitoring 2013 – Current and Future Trends, Jul 2013, cp-351-00019
- ISBN: 978-90-73834-51-4
Abstract
The recent expansion of surface and near-surface microseismic monitoring during hydraulic fracturing has led to the development of techniques that are directly applicable to more general permanent microseismic reservoir monitoring. Recent work associated with surface and near-surface microseismic monitoring of hydraulic fracturing for shale gas in the Fayetteville and Marcellus formations has helped to develop new methods to process low signal-to-noise ratio (SNR) data. Improvements to the SNR by stacking the data using novel non-linear stacking techniques and stacking of perforation shots allows the use of Coalescence Migration Mapping (CMM), an established technique used for downhole monitoring, to detect and locate microseismic events from surface data.