Angle-dependent full wavefield migration based upon full waveform inversion and joint migration inversion
- Yimin Sun (Aramco Overseas Company) | Young Seo Kim (Saudi Aramco) | Shan Qu (Delft University of Technology) | Eric Verschuur (Delft University of Technology) | Ali Almomin (Saudi Aramco) | Roald van Borselen (Aramco Overseas Company)
- Document ID
- Society of Exploration Geophysicists
- 2018 SEG International Exposition and Annual Meeting, 14-19 October, Anaheim, California, USA
- Publication Date
- Document Type
- Conference Paper
- 2018. Society of Exploration Geophysicists
- Imaging, Internal multiples, Inversion, Depth migration, Full-waveform inversion
- 0 in the last 30 days
- 12 since 2007
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In this paper, using a 2D realistic deep water synthetic model, we demonstrate a new angle-dependent migration workflow comprising full waveform inversion (FWI), joint migration inversion (JMI) and angle-dependent full wavefield migration (ADFWM). We will first point out that FWI-JMI is a better velocity model building scheme compared to FWI or JMI alone via a comparison study between FWI and JMI. Based upon this FWI-JMI velocity model, a benchmark test of ADFWM against angel gather reverse time migration (AGRTM) is further carried out, and results show that 1) ADFWM is a valid angle gather imaging scheme and 2) ADFWM is capable of providing sharper images than AGRTM due to its better exploitation of internal multiples.
Presentation Date: Wednesday, October 17, 2018
Start Time: 1:50:00 PM
Location: 207A (Anaheim Convention Center)
Presentation Type: Oral
|File Size||2 MB||Number of Pages||5|
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