1887

Abstract

Summary

We propose a new inversion approach to estimate Q factor values, based on back propagating the seismic data to its source location. If the correct velocity and Q-factor models are used, the back-propagated frequency spectrum will be consistent in all receivers recording the same source. The Therefore, we formulate a corresponding objective function inversion problem that is solved in a global optimization scheme. This workflow doesn’t require any knowledge of the source wavelet or an initial Q-factor model. In addition, it is less sensitive to noise as it takes multiple channels into account in a large frequency band.

While this approach is conceptually true for any back-propagation method, we construct and show its application using the linearized ray-based approximation. Through synthetic and field data examples, we demonstrate the application and the usefulness of the suggested workflow.

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/content/papers/10.3997/2214-4609.201701155
2017-06-12
2024-04-27
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