Conditioning low-frequency FWI updates using diffusion networks trained on deepwater field data
Joseph P. Stitt, Enning Wang, Guojian Shan, Uwe Albertin et autres
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Mark Fan
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7Publications signalées
2Citations signalées
1Affiliations récentes
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Les domaines associés
Seismic Imaging and Inversion TechniquesSeismic Waves and Analysisearthquake and tectonic studiesHydraulic Fracturing and Reservoir AnalysisImage and Signal Denoising Methods
Les publications récentes
Prestack true-amplitude angle-domain viscoelastic least squares reverse time migration
Yue Wang, Yang Luo, Peng Shen, Jingru Chen et autres
We present a prestack true-amplitude angle-domain viscoelastic Least Squares Reverse Time Migration (LSRTM) and demonstrate that it exhibits accurate moveout, which is critical for velocity model building, and accurate amplitudes, which are critical for viscoelastic property estimation.
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Unlocking the potential of narrow-azimuth streamer acquisition with extended FWI and least-square RTM: A case study for an Eastern Mediterranean field
Lei Zhuo, Guojian Shan, Brian Church, Lin Christianson et autres
The Eastern Mediterranean province contains world-class producing fields and large exploration potential. Subsalt imaging with narrow-azimuth seismic has inherent challenges that limit ability to constrain reservoir characterization. The imaging challenges include non-flatness of reservoir fluid contact, fault shadow, structure undulation, low signal-to-noise, …
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Modeling-based amplitude recovery (MBAR)
Yonghe Sun, Zhemin Tan, Jeff Nealon, James Davenport et autres
Analysis of seismic amplitude-versus-angle (AVA) is a primary technique for deriving hydrocarbon indicators. Many seismic processing algorithms distort amplitudes. We extend existing work and propose a general framework for modeling-based amplitude recovery (MBAR) through paired processing of synthetic and field data. The …
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1 citation
Premigration attenuation analysis and mapping to image domain by weighted migrations
Yonghe Sun, Chunling Wu, Mark Fan, Zhemin Tan
A conventional approach to attenuation compensation for seismic imaging is to pick attenuated time t* from depth- migrated data and to invert t* in tomography for spatially varying Q. The drawbacks of the approach include workflow complexity and spectral distortions by depth …
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1 citation
Purposeful seismic imaging for subsalt Wilcox stratigraphy
Mark Fan, R. Chadwick Holmes, Rob Buehring, Bing Bai et autres
Ideal datasets for stratigraphic interpretation have high resolution, high level of continuity, high S/N, and high amplitude fidelity. In the deep water Gulf of Mexico (DW GOM), detailed geologic interpretation, like faults and channels, for subsalt Wilcox reservoirs is challenging due to …
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Geological Structures of the South Okinawa Trough based on Seismic Reflection Data
Mark Fan, C. Liu, Louis S. Teng
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AGU Fall Meeting Abstracts
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