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The AAPG/Datapages Combined Publications Database
Showing 138 Results. Searched 195,372 documents.
ABSTRACT Interpretation Visualization and Presentation of Digital Well-Log Data in 3-D Virtual Reality Space: Application to Mapping of Coals , #90104 (2010)
Kinsland Gary L.; Borst Christoph; Das Kaushik; McWhorter Mathew
Search and Discovery.com
...‐logs is particularly effective when the strata being investigated are sampled by wells at a spatial frequency at, or greater than, the Nyquist...
2010
Some Fundamental Issues on the Effect of Sampling on Wavefield Imaging
Peter W. Cary
Search and Discovery.com
... introduced with an explanation of some very basic notions (Lines et al., 2001). For example, the concepts of minimal sampling, the Nyquist frequency...
Unknown
Some Fundamental Issues on the Effect of Sampling on Wavefield Imaging
Peter W. Cary
Search and Discovery.com
... introduced with an explanation of some very basic notions (Lines et al., 2001). For example, the concepts of minimal sampling, the Nyquist frequency...
Unknown
Abstract: Excuse Me Sir, Will That Be One Millisecond … Or Two?? by Mackenzie, Peter and Norm Cooper; #90031 (2004)
Search and Discovery.com
2004
EXTENDED ABSTRACT: Unambiguous signal recovery above the Nyquist using random-sample-interval imaging
R. Daniel Wisecup
CSPG Special Publications
...EXTENDED ABSTRACT: Unambiguous signal recovery above the Nyquist using random-sample-interval imaging R. Daniel Wisecup 1998 89 90...
1998
Interpretation, Visualization and Presentation of Digital Well-Log Data in 3D Virtual Reality Space, #40617 (2010)
Gary L. Kinsland, Christoph Borst, Nathan Bryant,
Search and Discovery.com
... at a horizontal frequency at, or greater than, the Nyquist frequency of the depositional environments within the strata. With Nyquist sampling...
2010
Abstract: Visualization of Petroleum Well-logs from Northern Louisiana in 3D Immersive Virtual Reality, by Gary L. Kinsland and Christoph Borst; #90206 (2014)
Search and Discovery.com
2014
Interpretation Value of Anomalous (‘Impossible’) Frequencies, by Bob Hardage, #40286 (2008)
Search and Discovery.com
2008
Abstract: On Choosing Differential Operators; #90171 (2013)
John C. Bancroft
Search and Discovery.com
... function f(t) defined in time. Seismic data is typically sampled in time with a maximum frequency content well below the Nyquist frequency. The data...
2013
Abstract: On Choosing Differential Operators; #90171 (2013)
John C. Bancroft
Search and Discovery.com
... function f(t) defined in time. Seismic data is typically sampled in time with a maximum frequency content well below the Nyquist frequency. The data...
2013
Advances in High Resolution Seismic Reflectivity Inversion
Dr. John Castagna
Houston Geological Society Bulletin
... to Nyquist. Frequency information outside the frequency band of the original seismic data contained in spike inversions is simply harmonics...
2012
Abstract: Cost Efficient Acquisition to Reduce Coarse Land 3D Line Spacings Through Beyond Nyquist Interpolation and Wavefield Reconstruction for Signal and Noise; #90187 (2014)
Bill Goodway
Search and Discovery.com
...Abstract: Cost Efficient Acquisition to Reduce Coarse Land 3D Line Spacings Through Beyond Nyquist Interpolation and Wavefield Reconstruction...
2014
Abstract: Enhancing Stratigraphic Features by Spectral Decomposition, Case Studies from Saudi Arabia; #90319 (2018)
Schuman Wu
Search and Discovery.com
... and frequency transforms (Discrete Fourier) with seismic horizon at the center of a time window (120-160 ms) to generate a frequency cube (0 to Nyquist Hz), (4...
2018
Seismic Frequency Bandwidth Constraints in Deepwater Locations
Andrew Long, Iain Buchan
Indonesian Petroleum Association
... the Nyquist frequency), then it will either be lost during multi-channel filtering and migration, or be converted to noise which will be pervasive...
2004
Quantifying the Benefit from Pressure Gradient Data in Wavefield Reconstruction for Time-Lapse Seismic, #40843 (2011)
Phil Christie, Kurt Eggenberger, Everhard Muyzert, Massimiliano Vassallo, Ali Özbek
Search and Discovery.com
... to a maximum source offset of about 1600 m and high-cut filtered to 60 Hz, which is the Nyquist frequency for water-borne arrivals. Inline pressure gradients...
2011
Abstract: High Resolution 3D Seismic Data - Characterization of Morrow and Chester Sands in Haskell County, KS, Dennis Hedke, #90097 (2009)
Search and Discovery.com
2009
Abstract: A geophysical characterization of a Bog in Gullbridge, Newfoundland
Joey Pittman
Atlantic Geology
... the Nyquist frequency and applying appropriate filters (highpass, lowpass, and bandpass) where applicable. Processing was done in terms of the GPS...
2017
Abstract: Event-directed Spectrum Extrapolation for Upsampling Seismic Traces; #90172 (2014)
Zhengshong Yao, Elvis Floreani
Search and Discovery.com
... the frequency and dip parameters one can obtain the spectrum component with a designed Nyquist interval, which in turn, can be used for building...
2014
Abstract: Channel Thickness Estimation Using Spectral Decomposition (Geophysics Poster 2)
Nora Aida Ramly, Nor Azhar Ibrahim, M Rapi M Som, Wan M. Khairul, Siti Syareena Ali, M Raisuddin Tajuddin
Geological Society of Malaysia (GSM)
... to I140 channels. The frequency range from zero to Nyquist frequency (125 Hz) was generated. In addition the frequency slice animator was used to review...
2011
Abstracts: A New f-p Domain Weighting Function in Minimum Weighted Norm Interpolation of Seismic Data; #90173 (2015)
Zhengsheng Yao, Mike Galbraith, and Randy Kolesar
Search and Discovery.com
... two neighbouring traces), the spectrum in the f-k domain before interpolation is aliased due to the reduced effective Nyquist interval, and therefore...
2015
Modern Industrial Technology And Methodology Used In The Acquisition Of High-Resolution 3D Pcable Seismic Reflection Data, Offshore Central California
Search and Discovery.com
N/A
Seismic Resolution and Analysis of Thin Pay Beds (Paper C12)
M. Sajid, D. P. Ghosh, Z. T. H. Zuhar
Geological Society of Malaysia (GSM)
... As the sample rate is 0.002 Sec with Nyquist frequency of 250 Hz so difference function can be a good approximation of derivative. Derivative can...
2012
Ergodic Sampling: A New Data Acquisition Method to Gather More Information
Mengli Zhang, Yaoguo Li
International Meeting for Applied Geoscience and Energy (IMAGE)
... the cost of acquisition is the large number of spatial sampling stations distributed uniformly as required by the Nyquist sampling. To overcome...
2023
Current and future multicomponent towed streamer design
Nicolas Goujon, Susanne Rentsch, Leendert Combee, Fabien Guizelin, Khairul Faizi Ahmad
Petroleum Exploration Society of Australia (PESA)
... and maximum frequency (under the same towing conditions) depends on the mechanical properties of the cable, and that they could be reduced by using a new...
2019
Abstracts: What Receivers will we use for Low Frequencies?; #90173 (2015)
R. Malcolm Lansley and Peter Maxwell
Search and Discovery.com
... for low frequency recording and review different receivers, their applicability and limitations. Introduction For many years now we have perhaps been...
2015