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The AAPG/Datapages Combined Publications Database
Showing 17,462 Results. Searched 195,372 documents.
The Role of Regional Seismic Surveys in the Exploration of the North West Shelf
J. Ostby, C. Johnston
Petroleum Exploration Society of Australia (PESA)
... of the zones of interest on the seismic section are of much lower frequency content than 60 Hz, and so returning signals are unlikely to generate aliasing noise...
1994
Aspects of Seismic Resolution: Chapter 1
R. E. Sheriff
AAPG Special Volumes
... considerations. However, on migrated sections other factors become important, such as noise on the unmigrated section, spatial aliasing, migration aperture...
1985
Recognition of Subtle Features in Geologic Maps
J. E. Robinson, D. F. Merriam
CSPG Special Publications
.... This is the aliasing error which reaches a probable 100% at the limiting frequency. In addition to the aliasing error there is the random error...
1980
Design of the Acoustic Zoom Method for Non-Specular Backscatter Imaging of the Eagle Ford Formation, #41495 (2014).
J. Guigne, S. Azad, C. Clements, A. Gogacz, W. Hunt, A. Pant, J. Stacey
Search and Discovery.com
...% coherent. Spectral whitening was applied to the vertically stacked traces to flatten the high frequency content of the acquired dataset. Power specta...
2014
Results of a Vibroseis Sourced 3D Seismic Survey, Phetchabun Basin, Thailand
David Remus, Rex Prosser
Southeast Asia Petroleum Exploration Society (SEAPEX)
... would not resolve the major problem in this area, which is fault aliasing (i.e. fault frequency is still less than line spacing). Figure 3 shows...
1992
Quality Data at a Reduced Price: Innovative Approaches in 3-D Acquisition and Processing
Mars E. Semaan, Michel F. Bee, Maryanto, Gerard Dufourd, Eddy A. Sentani
Indonesian Petroleum Association
... to achieve the highest resolution without suffering aliasing in order to recover steep high frequency dips A two-step migration scheme to correctly...
1995
Abstract: On Choosing Differential Operators; #90171 (2013)
John C. Bancroft
Search and Discovery.com
... filters to reduce aliasing, finite difference solutions to the wave equation, or wavelet correction when modelling with diffractions or migrating...
2013
Abstract: On Choosing Differential Operators; #90171 (2013)
John C. Bancroft
Search and Discovery.com
... filters to reduce aliasing, finite difference solutions to the wave equation, or wavelet correction when modelling with diffractions or migrating...
2013
Accurate seismic data interpolation based on multiband intelligent training
Xueyi Sun, Benfeng Wang, Tongtong Mo
International Meeting for Applied Geoscience and Energy (IMAGE)
.... Wang, 2022, An aliasing-free low-frequency pretrained model for seismic interpolation using a small training set: IEEE Transactions on Geoscience...
2023
Migration Velocity Analysis by Migration of Velocity Spectra
Craig J. Beasley, Rolf Klotz
Southeast Asia Petroleum Exploration Society (SEAPEX)
... such as spatial aliasing, boundary effects, accuracy of algorithms, 2-D versus 3-D migration, etc., have their counterparts in migration of velocity...
1992
Abstract: Improved Reservoir Characterisation from Inversion of High Resolution 3D Seismic Data (Poster 12)
Sagar Ronghe, Mark Sams, Sriyanee De Silva, Julian Sherriff
Geological Society of Malaysia (GSM)
... or time. This means that frequencies of up to 250 Hz can remain in the data with no aliasing effects. The lack of any spatial resampling (trace sum...
2003
Abstract: Ground Roll Attenuation via SVD and Adaptive Subtraction; #90171 (2013)
Peter Cary and Changjun Zhang
Search and Discovery.com
... based on the characteristics of the noise. Ground roll appears as low-velocity, low-frequency and high-amplitude waves which are distributed in fan...
2013
Abstract: Ground Roll Attenuation via SVD and Adaptive Subtraction; #90171 (2013)
Peter Cary and Changjun Zhang
Search and Discovery.com
... based on the characteristics of the noise. Ground roll appears as low-velocity, low-frequency and high-amplitude waves which are distributed in fan...
2013
Basic Seismic Processing: Part 7. Geophysical Methods
Peter M. Duncan
AAPG Special Volumes
... aliasing. Aliasing is a phenomenon in which high frequency data masquerades as low frequency energy as a result of undersampling. To sample a signal properly...
1992
Abstract: Wide Azimuth Interpolation; #90211 (2015)
Daniel Trad, Jeff Deere, and Scott Cheadle
Search and Discovery.com
... in the model that the interpolator uses. Additional considerations when sampling in multiple dimensions affect our traditional aliasing constraints, because...
2015
Abstracts: Attenuating 2D Noise in a 3D World; #90173 (2015)
David C. Henley
Search and Discovery.com
... and least spatial aliasing, presenting the best opportunity for attenuation. Other arrangements of the input data either have much more irregular offset...
2015
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
.... For most routine seismic surveying, the acquisition geometry is designed to sample the anticipated subsurface features without spatially aliasing...
2015
Abstract: Simple Wavefield Modelling to Evaluate the Low Frequency Artifacts in Reverse-Time Migration; #90224 (2015)
John C. Bancroft
Search and Discovery.com
...Abstract: Simple Wavefield Modelling to Evaluate the Low Frequency Artifacts in Reverse-Time Migration; #90224 (2015) John C. Bancroft Datapages...
2015
ONSHORE APPLICATIONS OF 3-D SEISMIC TECHNOLOGY 3D DATA ACQUISITION
Tom Davis, Steve Roche, and Susie Mastoris
Fort Worth Geological Society
... of aliasing. An example of aliased data could be steeply dipping, higher frequency data (often a desirable degree of resolution) that is aliased...
1993
Sensitivities, Limitations, and Error Inherent in Resistivity-tool-response Modeling - Application of Resistivity-Tool-Response Modeling for Formation Evaluation - Archie Series No. 2
Hezhu Yin
AAPG Special Volumes
... in spatial frequency resulting from the discrete-sampling process. Aliasing will occur when there are fewer than two samples per cycle; hence, an input...
2011
Ground Roll Removal and Signal Preservation by Cascading SVD Polarization Filters with Localized Fk-Filters; #41543 (2015)
Kristof De Meersman, Chris Ansorger
Search and Discovery.com
... over receiver array systems in areas where higher frequency content of the signal is demanded. 3C systems require single sensor acquisitions to avoid...
2015
Seismic Acquisition in the Sub-Andean Belt of Bolivia
Jair R. de S. Soares Filho, Roberto D. Chaves
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
..., field processed seismograms were analyzed in the shot domain (common shot gathers) after few steps that included frequency range filtering and spectral...
1997
Abstract: Rank-Reduction-Based Trace Interpolation; #90172 (2014)
Stewart Trickett, Lynn Burroughs, Andrew Milton, Larry Walton, Rob Dack
Search and Discovery.com
... of multidimensional filters to suppress random noise based on matrix-rank reduction of constant-frequency slices. Here we extend these filters to perform...
2014
Frequency-Domain Waveform Tomography in the Foothills: Velocity Model Estimation with Synthetic Long-Offset Data
Search and Discovery.com
...Frequency-Domain Waveform Tomography in the Foothills: Velocity Model Estimation with Synthetic Long-Offset Data Frequency-Domain Waveform...
2013
Identifying and Fixing Artifacts that Arise in Structure-Oriented Filtering; #42479 (2019)
Satinder Chopra, Kurt Marfurt
Search and Discovery.com
... operator aliasing (remnants of migration ellipses that do not destructively interfere) appears as steeply dipping coherent artifacts that cut across...
2019