4.7 Article

Time-Domain Wavefield Reconstruction Inversion Solutions in the Weighted Full Waveform Inversion Form

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Summary: The detection of property changes in the reservoir during injection and production is crucial, but challenging using surface seismic surveys. Full-waveform inversion allows for quantitative evaluation of subsurface properties for better monitoring, but high-resolution inversion comes at a large computational cost and is limited by data bandwidth and aperture. A target-oriented approach through seismic redatuming can reduce computational cost by focusing high-resolution delineation on a small zone of interest and incorporating velocity information from injection and production wells to enhance resolution and illumination. Additionally, a deep neural network can learn the statistical relationship between inverted models and facies interpreted from well logs, allowing for effective inversion of time-lapse property changes in the target zone.

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