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Analysis of Full Waveform Inversion Solutions Applied to Offset VSP Acquisition Design
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 6th EAGE Saint Petersburg International Conference and Exhibition, Apr 2014, Volume 2014, p.1 - 5
Abstract
In this work, we present a methodology that can be used to analyse resolution and stability of fullwaveform inversion solutions with application to offset vertical seismic profile(VSP) acquisition design. The method is based on singular value decomposition of the linearized forward map. We focus on the particular case of an offset VSP survey. Using a 2D isotropic model, we analyze efficiency of full-wave inversion for a particular example and compare scenarios with different types of sources and their offsets. We provide quantitative estimates for resolution and stability of inversion of different elastic parameters. The developed methodology may be used as a part of acquisition survey design during preparatory phase or as a quality control tool while performing inversion of registered data.