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Full-Waveform Inversion of Microseismic Events to Estimate Origin Times, Locations, Moment Tensors and an Attenuative
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 80th EAGE Conference and Exhibition 2018, Jun 2018, Volume 2018, p.1 - 5
Abstract
Summary
This work presents a numerical assessment of full-waveform inversion (FWI) of microseismic data to jointly determine the sources origin times, locations and moment tensors, together with the medium velocities, Thomsen parameters and seismic quality factors. The FWI cost function is optimized with a heuristic solver that does not require knowledge about the gradient of the cost function. The results illustrate the relationship between the accuracy in the recovered model parameters with respect to the number of microseismic events that input the inversion and parameters related to the optimization method.
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