| Autor: |
Shigeharu Mizohata, Ehsan Jamali Hondori, Hitoshi Mikada, Eiichi Asakawa |
| Rok vydání: |
2015 |
| Předmět: |
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| Zdroj: |
SEG Technical Program Expanded Abstracts 2015. |
| DOI: |
10.1190/segam2015-5895875.1 |
| Popis: |
Summary Full Waveform Inversion (FWI) of seismic data is a high resolution subsurface imaging tool and there is a lot of effort to fully industrialize it. The method, which uses a gradient based data fitting approach to minimize the misfit between observed and simulated waveforms, strongly requires either a good initial model or low frequency data for the convergence to the global solution. In this paper, we address the cycle skipping phenomena when none of the two above mentioned requirements are met. Then we suggest a method for extracting the initial model from conventional seismic data processing flows and well log data. Synthetic examples from Marmousi2 model show the method could solve the cycle skipping problem. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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