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A Novel Nonlinear Solver for Geophysical Inversions
- 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 present the application of a preconditioned nonlinear conjugate gradients (PC-NLCG) optimizer to a common-image-point (CIP) seismic tomography.
The new solver operates in our simultaneous joint inversion (SJI) framework, automatically being available for any possible single-domain inversion or SJI configuration with other seismic or non-seismic datasets. In all the tests we carried out the new PC-NLCG has always outperformed the standard NLCG. We show an example of performance improvement using data from a CIP tomography case.
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