Skip Nav Destination
Close Modal
Update search
Filter
- Title
- Author
- Author Affiliations
- Full Text
- Abstract
- Keyword
- DOI
- ISBN
- EISBN
- ISSN
- EISSN
- Issue
- Volume
- References
- Paper Number
Filter
- Title
- Author
- Author Affiliations
- Full Text
- Abstract
- Keyword
- DOI
- ISBN
- EISBN
- ISSN
- EISSN
- Issue
- Volume
- References
- Paper Number
Filter
- Title
- Author
- Author Affiliations
- Full Text
- Abstract
- Keyword
- DOI
- ISBN
- EISBN
- ISSN
- EISSN
- Issue
- Volume
- References
- Paper Number
Filter
- Title
- Author
- Author Affiliations
- Full Text
- Abstract
- Keyword
- DOI
- ISBN
- EISBN
- ISSN
- EISSN
- Issue
- Volume
- References
- Paper Number
Filter
- Title
- Author
- Author Affiliations
- Full Text
- Abstract
- Keyword
- DOI
- ISBN
- EISBN
- ISSN
- EISSN
- Issue
- Volume
- References
- Paper Number
Filter
- Title
- Author
- Author Affiliations
- Full Text
- Abstract
- Keyword
- DOI
- ISBN
- EISBN
- ISSN
- EISSN
- Issue
- Volume
- References
- Paper Number
NARROW
Format
Subjects
Article Type
Date
Availability
1-20 of 155
Keywords: migrated image
Close
Follow your search
Access your saved searches in your account
Would you like to receive an alert when new items match your search?
1
Sort by
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3567608
... to an equivalent space-wavenumber operator, which allows us to implement attenuation compensation on the y during wavefield extrapolation. A similar strategy can also be applied to the migrated images as a poststack processing approach, which is more efficient than the prestack compensation. Numerical tests...
Proceedings Papers
César Barajas-Olalde, Donald C. Adams, Justin T. Kovacevich, Lu Jin, Amanda J. Livers, John A. Hamling, Charles D. Gorecki, David P. Cercone, Barry M. Freifeld
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3428305
... characterization seismic array hamling sassa method migrated image seismic monitoring seg international exposition injection environmental research center reference geophone upstream oil & gas co 2 exploration geophysicist 10 turnaround time CO2 injection seismic monitoring without creating...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3428169
... was favored over that deploying a conventional geophone tool. In addition to the basic checkshot data, excellent VSP data quality was recorded up to near surface, which leveraged the scope of the project to a 2D imaging VSP without additional acquisition time. Indeed, this was the first 2D migrated image from...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215092
... reservoir characterization implementation salt body sharp contrast medium full waveform inversion elastic fwi upstream oil & gas velocity model top salt parameterization computational efficiency migrated image bottom salt numerical accuracy application inversion waveform inversion...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215094
... ABSTRACT Many different factors such as sub-optimal acquisition design or rapidly changing velocity profiles can contribute to the formation of shadow zones in migrated images, or more generally in least squares migrated images. The solution of tomographic full waveform inversion (TFWI) using...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216032
.... The inverse or pseudo inverse of the Hessian matrix is applied to the migrated image iteratively to retrieve an accurate image with balanced illumination and higher spatial resolution. In this paper, we implement a conjugate Hopfield neural network and its variant mean field Boltzmann machine to recover...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216342
... and angle variability of the PSF. The angular reflectivity is recovered by solving a linear system of equations that deconvolves the multidimensional PSF from the migrated image gathers. Results from the Sigsbee model and a multisensor streamer survey acquired in the Central North Sea show how LSM improves...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216399
... ABSTRACT Path-integral migration is a method for creating a migrated image without previous knowledge of the true velocity model by summing the migrated images from a representative set of velocity models. This concept can be expanded to automatically extract a velocity model, a technic called...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216617
... ABSTRACT Anelastic attenuation causes energy dissipation of seismic waves propagating inside the earth, which leads to amplitude decay and phase distortion of migrated images. To correct for this dissipation effect, we use Gaussian beams as wavefield propagator to formulate an efficient...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3207296
... ABSTRACT We propose to estimate migrated images with meaningful amplitudes similar to least-squares migrated images by approximating the inverse Hessian using generative adversarial networks (GANs) in a conditional setting. We use the framework of CycleGAN and extend it to the conditional...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2995439
... a generative adversarial network (GAN) to process seismic migrated images in order to potentially obtain different kinds of outputs depending on the application target at training stage. We demonstrate the promising features of this tool through a couple of synthetic examples. In the first example, the GAN...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2995931
... center saudi aramco seg international exposition migrated image wavefield salt boundary Etgen , J. , I. Ahmed , and M. Zhou , 2014 , Seismic adaptive optics : 84th Annual International Meeting, SEG , Expanded Abstracts , 4411 – 4415 , 10.1190/segam2014-0867.1...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2998434
... We propose using two non-stationary operators to represent the amplitude and frequency variations in the least-squares Hessian to account for the principal differences between conventional and least-squares migrated images. The calculation and application of these operators are computationally...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2997793
... without migration artifacts and improved spatial resolution. Presentation Date: Tuesday, October 16, 2018 Start Time: 1:50:00 PM Location: 204B (Anaheim Convention Center) Presentation Type: Oral migrated image reservoir characterization annual meeting neuron machine learning seismic...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2998369
... ABSTRACT Migration velocity analysis (MVA) based on subsurface offset extended image provides a way to update the velocity model by measuring the focusing of the extended migrated image. The focusing property is introduced by a horizontal subsurface shift in the imaging condition, which...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2998543
... imaging levin geophysics department rock physics workflow porosity mud weight data migrated image angle gather upstream oil & gas physics seg international exposition diagenesis pore pressure velocity model building huy velocity model legacy velocity compaction modeling...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2997022
... ABSTRACT Intelligent stacking techniques become one of the main keys to obtain migrated images with enhanced signal-to-noise ratio and to improve imaging quality. The classical stacking methods, that equally considers each individual traces, reach their limits when they have to deal...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17642809
... attenuation wavelet transform noise cwt seg seg international exposition diving wave migrated image variation annual meeting data quality complex wavelet transform zhou yu upstream oil & gas vsp reservoir characterization das data noise attenuation wavelet denoise flow Daley , M...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17777036
... added to the conventional framework of the land data processing. Presentation Date: Tuesday, September 26, 2017 Start Time: 3:30 PM Location: Exhibit Hall C/D Presentation Type: POSTER datum imaging common-offset panel input data migration modification migrated image upstream oil...
Proceedings Papers
Lorenzo Casasanta, Francesco Perrone, Graham Roberts, Andrew Ratcliffe, Karen Purcell, Arash Jafargandomi, Gordon Poole
Publisher: Society of Exploration Geophysicists
Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17704075
... ABSTRACT It is well-known that standard migration is not a true inverse operation and is based on the adjoint of the forward modeling operator. Due to this approximation the resulting migrated image can often suffer from various artifacts and uneven illumination issues, especially in regions...
1