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Efficient 3D Frequency-domain Full Waveform Inversion (FWI) with Phase Encoding
71st EAGE Conference and Exhibition incorporating SPE EUROPEC 2009, 20093D high resolution imaging methods such as full waveform inversion still suffer from their expensive computational cost, for instance because of the huge amount of data characterized by numerous shots and receivers.
Ben Hadj Ali, H. +2 more
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3D DAS Full Waveform Inversion (FWI) Case Study for SAGD Steam Chamber Imaging
NSG2021 27th European Meeting of Environmental and Engineering Geophysics, 2021Summary Distributed Acoustic Sensing (DAS) is based on Rayleigh scattering principles used to determine acoustic strain signals over long distances, effectively turning the optic fiber cable into a series of geophones. Once the data is acquired, advanced processing techniques such as Full Waveform Inversion (FWI) can be applied to obtain information ...
W. Wang +4 more
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Smart Materials and Structures, 2021
Abstract Undetected inclusions in engineering components cause tremendous industrial expenses in maintenance and repairs each year, with additional risks of catastrophic failures. This paper introduces a powerful method for inclusion imaging and reconstruction in irregularly-shaped components, based on a cutting-edge imaging technique—
Jiaze He +5 more
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Abstract Undetected inclusions in engineering components cause tremendous industrial expenses in maintenance and repairs each year, with additional risks of catastrophic failures. This paper introduces a powerful method for inclusion imaging and reconstruction in irregularly-shaped components, based on a cutting-edge imaging technique—
Jiaze He +5 more
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Full waveform inversion (FWI) in time for seismic data acquired using a blended geometry
2016 XXI Symposium on Signal Processing, Images and Artificial Vision (STSIVA), 2016This work presents the development of a FWI method in time, that uses seismic data acquired using a blended geometry. Blended geometry involves temporal and spatial overlap of multiple shots, randomly located in the same acquisition, whereas the traditional acquisition uses regular spacing of the receivers and one single shot at a time.
Katherine A. Florez +2 more
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Journal of Applied GeophysicsSource wavelet independent time-domain full waveform inversion(FWI) of cross-hole radar data
2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2016In recent years, waveform inversion is one of the hot methods because it can provide sub-wavelength images. In the inversion of field data, waveform inversion requires a good estimation of the source wavelet to reach the global convergence. Traditional method is that the source wavelet is added into the inversion as a new unknown parameter and updated ...
Sixin Liu, Xu Meng, Lei Fu
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2021
<p>Full Waveform Inversion (FWI) is a well-established seismic imaging technique used in the exploration industry to acquire high resolution, high precision velocity models of the subsurface from seismic data. Although FWI is computationally expensive and requires customized data acquisition, the technique has the potential to improve ...
Emma Pearce +6 more
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<p>Full Waveform Inversion (FWI) is a well-established seismic imaging technique used in the exploration industry to acquire high resolution, high precision velocity models of the subsurface from seismic data. Although FWI is computationally expensive and requires customized data acquisition, the technique has the potential to improve ...
Emma Pearce +6 more
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The Leading Edge, 2013
Convergence of full waveform inversion can be improved by extending the velocity model along either the subsurface-offset axis or the time-lag axis. The extension of the velocity model along the time-lag axis enables us to linearly model large time shifts caused by velocity perturbations. The extension is based on a new linearization of the scalar wave
Biondo Biondi, Ali Almomin
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Convergence of full waveform inversion can be improved by extending the velocity model along either the subsurface-offset axis or the time-lag axis. The extension of the velocity model along the time-lag axis enables us to linearly model large time shifts caused by velocity perturbations. The extension is based on a new linearization of the scalar wave
Biondo Biondi, Ali Almomin
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Elastic full-waveform inversion of a targeted FWI OBN survey at Atlantis field
International Meeting for Applied Geoscience & EnergyAtlantis field in the Gulf of America has seen substantial improvements in seismic image fidelity in recent years, due largely to the combination of modern OBN acquisition and advances in full-waveform inversion (FWI). However, there remain areas at Atlantis — especially beneath the highly complicated salt overburden — where the image quality is still ...
Simon Luo +9 more
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Full-waveform inversion and FWI imaging for land data
Second International Meeting for Applied Geoscience & Energy, 2022James Sheng +4 more
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