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Reducing Project Turnaround by Optimizing the Model Building Workflow Using Full-waveform Inversion and Reflection Tomography - A North Sea Case StudyNormal access

Authors: S. Gupta, M. Steiger-Jarvis and J. Bailey
Event name: 79th EAGE Conference and Exhibition 2017
Session: FWI II - Case Studies
Publication date: 12 June 2017
DOI: 10.3997/2214-4609.201701161
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 2.22Mb )
Price: € 20

Summary:
Full-waveform inversion (FWI) is increasingly becoming a standard tool to resolve the overburden in shallow water surveys. However, for a simple initial model, applying FWI efficiently due to cycle skipping and local minimum issues has been a major problem until recently. The advent of Adjustive FWI helps mitigate the half-wavelength criteria, facilitating an early start to the depth model building workflow parallel with the time processing sequence. We present a case study using Adjustive FWI that could minimize the impact on turnaround time, enabling the application of optimized workflow, even for the towed-streamer surveys where no good legacy model exists.


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