An Overview of the Geophysical Challenges in Monitoring and Locating Induced Earthquakes with Downhole Networks
S. Minisini, C. Willacy, E. Van Dedem, J. Li and J.W. Blokland
Event name: 81st EAGE Conference and Exhibition 2019 Workshop Programme
Session: WS16 Induced Seismicity - Past, Present and Future
Publication date: 03 June 2019
Info: Extended abstract, PDF ( 1.61Mb )
Price: € 20
We analyze the challenges that may be encountered when trying to locate microseismic events recorded by downhole networks in complex geological settings. The observed seismic events are characterized by significant complexity due to the high velocity contrasts and full waveform modeling is used to better understand and interpret the arrivals. Conventional location methods based on ray tracing for microseismic event location and moment tensor inversion may not be optimal for such an environment. To address this challenge, we developed a full waveform matching methodology for locating microseismic events and show its application on real dataset.