| Autor: |
Dong Sun, K. Jiao, Xin Cheng, O. Lewis, Jerry Kapoor, Denes Vigh |
| Rok vydání: |
2016 |
| Předmět: |
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| Zdroj: |
78th EAGE Conference and Exhibition 2016. |
| Popis: |
The conventional FWI is exposed to cycle skipping especially when the initial model is inadequate and the ultra-low frequencies are not present in the observed data. If the FWI does not have the power to mitigate the cycle skipping then initial velocity must be built by travel-time tomography. This way the model building would comprise of travel-time tomography followed by FWI and finish the flow with travel-time tomography. Our FWI does not require half wavelength convergence criteria this is why we can skip the first travel-time tomography in the flow which shortens the turnaround time on depth imaging projects. This FWI and the new workflow are demonstrated by synthetic and field data examples. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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