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The AAPG/Datapages Combined Publications Database
Showing 19,370 Results. Searched 200,293 documents.
Wavefield Extrapolation for Prestack Time Migration with RMS Velocity: Part I Algorithm
Jianhua Pan
Search and Discovery.com
...-based summation (WESUM) algorithm has been developed for prestack depth migration with flexibility and option to output common image gathers...
Unknown
Wavefield Extrapolation for Prestack Time Migration with RMS Velocity: Part I Algorithm
Jianhua Pan
Search and Discovery.com
...-based summation (WESUM) algorithm has been developed for prestack depth migration with flexibility and option to output common image gathers...
Unknown
Abstract: Evaluation of Different Fiber Optic Cables For Near-Surface Reflection Seismic; #91204 (2023)
Anton Egorov, Pavel Golikov, Andrey Bakuli, Konstantin Tertyshnikov, Roman Pevzner
Search and Discovery.com
..., bandpass filtering), and compute the brute seismic stacks. We also analyze the seismic gathers in different domains (two-dimensional Fourier transform...
2023
EXTENDED ABSTRACT: Applications of Wave Imaging Technologies to Improve Deep Gulf Prospecting
Morgan P. Brown, Joseph H. Higginbotham, Cosmin Macesanu, Oscar E. Ramirez
GCAGS Transactions
... insidious effect is complex wavefield focusing, which reduces image crispness and blurs fault boundaries. Prestack depth migration (PSDM) methods have been...
2010
Premigration attenuation analysis and mapping to image domain by weighted migrations
Yonghe Sun, Chunling Wu, Mark Fan, Zhemin Tan
International Meeting for Applied Geoscience and Energy (IMAGE)
...) agree well with the 1/𝑄 model (g) except at large angles ≳ 55. Figure 4 shows the image-domain CIP gathers of 𝑡 ∗ and 1/𝑄 mapped from the data-domain...
2022
-- no title --
user
Search and Discovery.com
... of information, a suitable velocity and anisotropy strategy, and proactive QC. The success of the project can be evaluated by QC of final migrated gathers...
Unknown
-- no title --
user
Search and Discovery.com
... of information, a suitable velocity and anisotropy strategy, and proactive QC. The success of the project can be evaluated by QC of final migrated gathers...
Unknown
Abstract: Orthorhombic Time Tomography: Accounting for Azimuthal Effects in Long-Offset WAZ Data; #90254 (2016)
Jeremie Messud, Christophe Rohel, Gilles Lambaré, and Patrice Guillaume
Search and Discovery.com
... at the reservoir level). The benefit is also illustrated on the final image; indeed, “wobbling” effects are suppressed in pre-stack time migration...
2016
Abstract: Analytic Formulae for Wave Normal of P-Waves in TI and Orthorhombic Media; #90255 (2017)
Qi Hao, Alexey Stovas
Search and Discovery.com
... common image gathers for TI and orthorhombic media. The proposed formulae for the wave normal of P-waves in orthorhombic media are second-order accurate...
2017
Prestack Depth Migration for "Easy" Unconventional Plays?, #41056 (2012)
Morgan Brown
Search and Discovery.com
... or impossible. In theory, PSDM, with true reflection angle gathers, is the ideal vehicle for attribute computation, and in the coming years, will become...
2012
Subsalt Imaging: An Integrated Approach to Image Improvement of Vintage Data
Search and Discovery.com
N/A
Abstract: Towards an Optimal Workflow for Azimuthal AVO; #90171 (2013)
David Gray and Shangxu Wang
Search and Discovery.com
... of Bani found to date is azimuthally-sectored pre-stack migration of 5D interpolated gathers with “Area-Weighting” applied. This will be compared...
2013
Abstract: Azimuthal Processing For Unconventional Resource Plays Using An Orthorhombic Velocity Model; #90174 (2014)
Shaowu Wang and David Wilkinson
Search and Discovery.com
... to datasets from two shale gas plays and one shale oil play. Figure 3: Example image gathers after isotropic (Left) and orthorhombic (Right) PSTM The first...
2014
ABSTRACT: A Comparison of AVO Behavior after Prestack Time Migration, Prestack Depth Migration, and Prestack Imaging, by James Allen, Carolyn Peddy, Anat Canning, Glen Denyer; #91020 (1995).
Search and Discovery.com
1995
Abstract: A New Approach to Seismic Interpretation in Challenging Imaging Environments, by C. Edward Helsing and David C. Berman; #90067 (2007)
Search and Discovery.com
2007
3D Pre-Stack Depth Migration of a Land Survey with Considerable Multiple Interference - A Case History
Search and Discovery.com
N/A
The Barque Structure Offshore New Zealand: Improving the Seismic Image Using Prestack Depth Migration; #41516 (2015)
Jim Montalbetti, Jeff Beckett, Graham Hodgkiss
Search and Discovery.com
... model to check the accuracy of the update on both common image gathers and structural consistency of the stacked image. 4. Continue with iterations...
2015
Least-squares reverse-time migration with angle gathers through point spread functions
Jianyong Bai, Orhan Yilmaz
International Meeting for Applied Geoscience and Energy (IMAGE)
... migration with angle gathers through point spread functions Jianyong Bai∗ and Orhan Yilmaz, Emerson SUMMARY Angle-domain common image gathers (ADCIGs...
2022
Leveraging source-over-cable marine seismic field data for near offset reconstruction with deep learning
Owen Rohwer Huff, Jan Erik Lie, Andreas Kjelsrud Evensen, Aina Juell Bugge
International Meeting for Applied Geoscience and Energy (IMAGE)
... the near offset gap of source-over-cable common depth point gathers acquired in the North Sea, yielding low reconstruction error on unseen gathers...
2024
Hybrid streamer/sparse OBN imaging offshore Norway
Chris Walker, Zhengzheng Zhou, Xi Li
International Meeting for Applied Geoscience and Energy (IMAGE)
... to this primary processing effort, a pilot study was undertaken on a subset (~200 sq. km) of the OBN data to examine our ability to image only the sparse...
2023
High-Effort Seismic Acquisition: Improving Image Detail; #41568 (2015)
David C. Henley, Kevin Hall, Henry Bland, Eric Gallant, Gary Margrave, Malcolm Bertram
Search and Discovery.com
...High-Effort Seismic Acquisition: Improving Image Detail; #41568 (2015) David C. Henley, Kevin Hall, Henry Bland, Eric Gallant, Gary Margrave...
2015
An Interpreter's Guide to Improvements in Depth Imaging through Model-Based Velocity Estimation and Refinement
Andy Furniss
Petroleum Exploration Society of Australia (PESA)
... velocity model was used for migration. Any residual delay in the CRP gathers not only degrades the migrated image but also implies that the spatial...
1999
Abstract: A 3D pre-stack depth migration case history from the South China Sea
Refik Oezsen, Mark Crawley, Wan Ismail Wan Yusoff, Abdul Rahim Md. Arshad
Geological Society of Malaysia (GSM)
... migration project was conducted to better image seismic data beneath 11nd around the gas affected area. The results of the 3D pre-stack depth migration when...
1999
Seismic Angle Migration
Search and Discovery.com
N/A
What Are You Interpreting? Your Seismic Image Could Be Misleading You!
R. T. Newrick, E. P. Gomez, J. K. Pullishy, S. D. Jensen, J. M. de Armas
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... and be confident that all criteria for a robust velocity model and image are met. Ask yourself a few critical questions. Are the common image gathers flat...
2006