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The AAPG/Datapages Combined Publications Database
Showing 154 Results. Searched 200,293 documents.
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
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
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
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: Quantifying the Benefit from Pressure Gradient Data in Wavefield Reconstruction for Time-Lapse Seismic, by Eggenberger, Kurt; Christie, Phil; Muyzert, Everhard; Vassallo, Massimiliano; Özbek, Ali ; #90135 (2011)
Search and Discovery.com
2011
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
Abstract: High Resolution Radon Transforms based Compressive Sensing Principles, by Y. Ma and Y. Luo, #90188 (2014)
Search and Discovery.com
2014
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
Interpretation Value of Anomalous (‘Impossible’) Frequencies, by Bob Hardage, #40286 (2008)
Search and Discovery.com
2008
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: Compressive Sensing Challenged; #91204 (2023)
Jan de Bruin
Search and Discovery.com
... in the quality of the final seismic images. It is sometimes said that we have always under-sampled seismic wavefields because applying the Nyquist rule...
2023
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: 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: A Compressive Sensing Seismic Data Reconstruction Approach Based on Accelerated Iterative Threshold; #91204 (2023)
Lieqian Dong, Mugang Zhang, Xueyong An, Datong Zhou, Yunlei WangDong
Search and Discovery.com
... Lieqian Dong, Mugang Zhang, Xueyong An, Datong Zhou, Yunlei Wang Dong BGP, CNPC Abstract Compressive sensing (CS) breaks through the limitation of Nyquist...
2023
Abstract: Spontaneous Potential as a Method for Mapping Degrading Organic Contaminants: An Explanation of its Variable Efficacy; #90172 (2014)
Sarah Forté, Laurence R. Bentley
Search and Discovery.com
.... Examples of anomalies include: −600 mV over a jet fuel plume (Shi, 1998), −80 mV over tomato canning waste (Nyquist and Corry, 2002) and −400 mV over...
2014
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
Preservation of Structural Information Across Prospect Portfolios
Search and Discovery.com
N/A
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
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
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
Irregular acquisition design to maximize information: From cross-lines to ergodic sampling
Mengli Zhang, Yaoguo Li
International Meeting for Applied Geoscience and Energy (IMAGE)
..., but there is no solid theoretical reasons why we use it except for the Nyquist-Shannon sampling that assumes the availability of regular sampling...
2022