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Full Waveform Inversion Using the Energy Objective Function
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 76th EAGE Conference and Exhibition 2014, Jun 2014, Volume 2014, p.1 - 5
Abstract
Summary
We suggest new objective functions for full waveform inversion in the time domain. These objective functions minimize the energy differences between observed and modeled data. We applied sequential time windows to the data and calculated the energy. A numerical example shows that the objective functions can be used to obtain a macrovelocity model. The recovered macro-velocity model can be used as an initial velocity for a subsequent inversion in the frequency domain to obtain high-resolution velocity information. Since we calculate the partial derivative of the energy objective function explicitly, heavy computational requirement is an important limitation of these objective functions.
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