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The AAPG/Datapages Combined Publications Database
Showing 33,130 Results. Searched 200,357 documents.
Imaging Beneath Complex Structure
K. Larner, B. Gibson, and R. Chambers
AAPG Special Volumes
... with interval velocity known perfectly, no velocity is proper for time migrating the data here; time migration is the wrong process because it does not honor...
1983
Imaging Beneath Complex Structure: Case History: ABSTRACT
Ken Larner, Bruce Gibson, Ron Chambers
AAPG Bulletin
... perfectly, no velocity is proper for time migrating the data here; time migration is the wrong process because it does not honor Snell's law. Depth...
1981
Imaging Beneath Complex Structure: A Case History: ABSTRACT
Bruce Gibson, Ken Larner, Ron Chambers
AAPG Bulletin
... are related directly to highly nonhyperbolic moveout. As with migration velocity, no proper stacking velocity can be developed for these data, even from...
1983
Seismic Imaging in Anisotropic Media. or... "A Better Way to Moveout and Migrate Long Offset Data"
Rolf Klotz, Martin Bayly, Sue Downie, Swee Leng
Indonesian Petroleum Association
... migrated and stacked using different ray assumptions using "mini stack" panels from a velocity analysis. The straight ray assumption migration data...
2000
Improved channel imaging using full-waveform inversion for deepwater Lingshui giant gas reservoir in South China Sea
Tao Wu, Dun Deng, Zijing Gong, Jie Cui, Rong Li, Lianlian Liu
International Meeting for Applied Geoscience and Energy (IMAGE)
... to mitigate cycle-skipping and obtained an accurate low-frequency background velocity trend. Based on an analysis of the data, this was the lowest...
2024
Abstract: The Pony Discovery, Green Canyon Block 468, U.S. Gulf of Mexico: Structural Uncertainty Analysis, by Ryan Mann, Henry Zollinger, and Steve Checkles; #90124 (2011)
Search and Discovery.com
2011
Geological Input Valuable in Seismic Velocity Analysis, by Supratik Sarkar; #41118 (2013).
Search and Discovery.com
2013
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)
... velocity model building and PSDI Q.C. (Figure 1). Seismic data are processed through time imaging so that the pre-migration shot gathers can be input...
2006
Comparison of Various Depth Conversion Techniques in a Complex Foreland Thrust Belt Setting: Case Study in the North Seram Basin, Banda Arc
Muhammad Nauvall Juliansyah, Bayu Permana Putra, Agung Donurizki
Indonesian Petroleum Association
... data and sparse control from well data. This research performs a comprehensive and regionally extensive depth conversion analysis utilizing velocity...
2019
Application of TTI Reverse Time Migration, Deepwater Offshore Malaysia (Paper P5)
J. Sun, B. Mishra, C. Jiao, J. Sun, G. Hodgkiss, A. Bisset
Geological Society of Malaysia (GSM)
..., using impulse response analysis and actual data, that RTM is superior to Kirchhoff migration even in the absence of high velocity bodies...
2012
Abstracts: True-Amplitude PS Prestack Time Migration via 5D Interpolation; #90173 (2015)
Peter W. Cary, Albert Zhang
Search and Discovery.com
... for further analysis such as joint PP, PS inversion. Technically, its implementation is similar to, but not the same as, P-wave migration because...
2015
Delineation of Anomalously Pressured Gas Accumulations in the Riverton Dome Area, Wind River Basin, Wyoming
Ronald C. Surdam, Zun Sheng Jiao, Nicholas G. K. Boyd III
Wyoming Geological Association
... accumulations. In this study, seismic data processed by Echo Geophysical were used as the basis for the velocity analysis. The processing stream included true...
2000
-- no title --
user
Search and Discovery.com
..., high resolution migration velocity estimation and imaging is introduced. The methodology for objective, data driven determination of the velocity...
Unknown
-- no title --
user
Search and Discovery.com
..., high resolution migration velocity estimation and imaging is introduced. The methodology for objective, data driven determination of the velocity...
Unknown
Seismic imaging of the Turtle Mountain structure, southwestern Alberta, Canada
J.H. Isaac, D.C. Lawton, C.W. Langenberg
CSPG Bulletin
... – The Husky experience. Geophysics, v. 63, p. 1166-1176. Zhu, J., Lines, L. and Gray, S. 1998. Smiles and frowns in migration/velocity analysis. Geophysics...
2008
High-resolution angle gather tomography with Fourier neural operators
Sean Crawley, Guanghui Huang, Ramzi Djebbi, Jaime Ramos, Nizar Chemingui
International Meeting for Applied Geoscience and Energy (IMAGE)
... is akin to traditional migration velocity analysis (MVA), but it uses a neural network in place of a back projection operator. It can iteratively...
2023
Shallow Velocity Model Building Considerations for Prestack Depth Migration in Unconventionals
Mike Perz, Josef Heim, Candace Bruins
Unconventional Resources Technology Conference (URTEC)
...Shallow Velocity Model Building Considerations for Prestack Depth Migration in Unconventionals Mike Perz, Josef Heim, Candace Bruins URTeC: 399...
2019
Fault Shadow Issues and Resolution in Model and Real Data
Andrew J. Davidoff, Ika Ratna Novianti
Indonesian Petroleum Association
... which includes travel time tomography, depth focusing analysis, and migration velocity scans. A generalized workflow is shown in Figure 12. Figure 12...
2002
Abstract: Statistical Depth Imaging with Path Summation through Complex Near-Surface; #91204 (2023)
Ilya Silvestrov, Andrey Bakulin, Maxim Protasov
Search and Discovery.com
... in several applications in the time domain, including stack to zero offset, time-migration, velocity analysis, and diffraction imaging. Extending these ideas...
2023
Evaluation of possible gas microseepage mechanisms
Alton Brown
AAPG Bulletin
... to the velocity and flux calculated for continuous-phase gas flow through fractures, the most probable mechanism for focused, vertical cross-stratal migration...
2000
ABSTRACT: Prestack Depth Migration for 'Easy' Onshore Plays?, by Morgan Brown; #90156 (2012)
Search and Discovery.com
2012
AAPG Memoir 76, Chapter 19: The Future of Pressure Prediction Using Geophysical Methods
Alan R. Huffman
AAPG Special Volumes
... for velocity analysis. Prestack time migration, demultiple, and other techniques are commonly required to clean up the seismic data so that it is suitable...
2001
Abnormal Pressure Evaluation of the Recent Pliocene and Miocene Gas Discoveries from the Eastern Nile Delta, Egypt, Using 2D and 3D Seismic Data
Philip D. Heppard and Martin L. Albertin
Houston Geological Society Bulletin
... during acquisition such as cable length together make velocity analysis an interpretive procedure. Velocities derived from seismic are inherently low...
1998
Application of time-adaptive FWI on onshore data in Bohai Bay Basin
Wan Xuejuan, Luo Wenshan, Wang Yongming, Gong Ting, Li Daoshan, Chen Yuansheng
International Meeting for Applied Geoscience and Energy (IMAGE)
... depth migration section and gathers after the joint use of TA-FWI and LS-FWI. The accuracy of velocity inversion further improves, and the signal-to-noise...
2024
Depth Imaging Seeing the Invisible
Vetle Vinje
GEO ExPro Magazine
... Solving the wave equation Complexity of velocity model Computer efficiency Steep dips Model building Kirchhoff Migration Ray tracing Moderate...
2010