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The AAPG/Datapages Combined Publications Database
Showing 234 Results. Searched 200,293 documents.
Active Margin: Volcanics, North Island, New Zealand
D. Bradford Macurda, Jr.
AAPG Special Volumes
... ms Max Pred Lag: 236 ms TIME VARIANT FILTERING WAVE EQUATION MIGRATION References Hatherton, T., F.J. Davey, and T.M. Hunt, 1979, Geophysical...
1987
ABSTRACT: CRUSTAL-SCALE IMAGING OF THE ABSHERON RIDGE (SOUTH CASPIAN SEA) REVEALED BY DEEP SEISMIC REFLECTION PROFILING; #90024 (2004)
Camelia C. Diaconescu, James H. Knapp, John Connor
Search and Discovery.com
..., including predictive deconvolution, T-p filtering, and a time-variant gain function, was focused on removal of abundant multiple energy and enhancement...
2004
ABSTRACT: Seismic detection of faults and fractures; #90136 (2011)
Santinder Chopra
Search and Discovery.com
... decomposition-based inversion for seismic reflectivity, a process that removes the time-variant wavelet from the seismic data and extracts the reflectivity...
2011
Imaging Complex Structures in Colombia Full Wave Equation Migration Approach
Hector A. Alfonso, Luis E. Rojas, Weizhong Wang, Jie Zhang, Oz Yilmaz
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... that includes t-squared scaling, predictive deconvolution, time-variant spectral whitening, near-surface corrections and f-x dip filtering. distance along...
2008
No Slide Title
Search and Discovery.com
N/A
Data Enhancement from a 486-Channel Streamer
Bill Dragoset, Ken Larner
Pacific Section of AAPG
... identically. The processing included geometric spreading correction, unit-distance predictive deconvolution, CDP stacking, time-variant frequency...
1980
Abstract: Variable-factor S-transform for Time-frequency Decomposition, Deconvolution, and Noise Attenuation; #90172 (2014)
Todor I. Todorov, Gary F. Margrave
Search and Discovery.com
... filtering in the Fourier domain with application to time-variant filtering: Geophysics, 63, 244-259. Margrave, G., and Lamoureux, M., 2001, Gabor...
2014
Some Seismic Instantaneous Bandwidth Attribute Applications; #42515 (2020)
Satinder Chopra, Kurt J. Marfurt
Search and Discovery.com
... to enhance the frequency content of the seismic data. Starting with the application of the traditional time-variant spectral whitening, which might distort...
2020
A simultaneous wavefield separation and denoising approach for vertical seismic profile using geometric mode decomposition
Salman Abbasi, Jubran Akram, Andres Chavarria, Vikram Jayaram, Iftekhar Alam, Dmitry Borisov, Yanwei Zhang
International Meeting for Applied Geoscience and Energy (IMAGE)
...n with high-resolution time-variant Radon transforms: Geophysics, 67, 644– 656, doi: https://doi.org/10.1190/1.1468626. Wang, X. K., J. Y. Chen, L. Ga...
2024
Comparison of seismic resolution enhancement techniques: Spectral extrapolation vs spectral balancing
Charles I. Puryear
International Meeting for Applied Geoscience and Energy (IMAGE)
... extrapolation using spectral inversion (Puryear et al, 2023) was also implemented; this process (Figure 2) combines time-variant Figure 2: Spectral...
2023
Enhancing conventional VSP data to broadband and its quantitative improvement on lookahead inversion
Hussain Almarzooq
International Meeting for Applied Geoscience and Energy (IMAGE)
... estimate a time-variant Q from the VSP data since it covers the entire well (figure 1). These picks are made so that they match both the attenuation...
2022
Post-stack 3D merging to fast-track regional interpretation offshore Otway Basin case study
Merrie-Ellen Gunning, Scott Wilkinson, Pei-Fei Chau, Cameron Mitchell, Jennifer Badry
Australian Energy Producers Journal
... to merge the volumes. Post-match processing A mild time-variant noise attenuation was applied using DUG Technology Ltd.’s Cadzow filtering algorithm...
2024
New Data Reveals Sub-Salt Levantine Basin
Øystein Lie, Per Helge Semb
GEO ExPro Magazine
... SRME, high resolution Radon demultiple, multiple diffraction attenuation, f-x deconvolution, Q-compensation, time-variant filtering, Kirchhoff PSTM...
2009
Integrated Open-Source Geophysical Processing and Visualization
Glenn D. Chubak
Search and Discovery.com
... Figure 1. Trace display with a time variant spectrogram (middle) and amplitude spectrum (bottom). Buttons along the bottom edge are used to control...
Unknown
Integrated Open-Source Geophysical Processing and Visualization
Glenn D. Chubak
Search and Discovery.com
... Figure 1. Trace display with a time variant spectrogram (middle) and amplitude spectrum (bottom). Buttons along the bottom edge are used to control...
Unknown
The depth-domain seismic inversion based on depth-variant wavelet non-stationary convolution method
Cong Wang, Xuehua Chen, Wei Jiang, Shengyi Wang
International Meeting for Applied Geoscience and Energy (IMAGE)
... in the Fourier domain with application to time-variant filtering: Geophysics, 63, 244– 259, doi: https://doi.org/10.1190/1.1444318. Sengupta, M., H...
2024
ABSTRACT: Improving Seismic Interpretability by Integrating Well Seismic Data into Processing; #90061 (2006)
Norbert Van de Coevering, Rusdinadar Sigit, Reza Lasman, Andrew Bisset, George Soosai, Mark Newman, and Ardiek Mahargono
Search and Discovery.com
... to process the seismic data in Murphy Oil. Through various examples in the Sarawak Basin, VSP-based time variant Q compensation function improves...
2006
Seismic Detection of Overpressuring and Fracturing: An Example from the Qaidam Basin, People’s Republic of China
Robert J. Paul
Southeast Asia Petroleum Exploration Society (SEAPEX)
... by the equivalent geological depths in two of the wells which penetrate this area. This lack of correlation and the time-variant nature of the sag suggest...
1990
Advances on land vibroseis source technology towards low frequencies
Zhouhong Wei
International Meeting for Applied Geoscience and Energy (IMAGE)
... categories of nonlinear control algorithms were designed to handle these nonlinearities in three frequency bands. Figure 5. Frequency-Time variant spectrum...
2024
Abstract: Push the Limits of Seismic Resolution Using Surface Consistent Gabor Deconvolution; #90171 (2013)
Xinxiang Li and Darren P. Schmidt
Search and Discovery.com
... [email protected] Summary The Gabor deconvolution methods capture and remove the time-variant earth filter effects embedded in recorded seismic...
2013
Time Depth Conversion of a Prospect With Near-Surface Velocity Anomalies Using Stacking Velocites and PSDM Velocities: A Comparison
Tan Boon Hua, Lothar Schulte
Indonesian Petroleum Association
... unchallenged. However in many situations, a velocity model based on a time variant filtering of the stacking velocities may deliver results similar to the PSDM...
2011
Abstract: Nonstationary Predictive Deconvolution; #90172 (2014)
Gary F. Margrave, Michael P. Lamoureux
Search and Discovery.com
... slice and by summing construct a time-domain nonstationary deconvolution method based on gapped prediction filtering. We call this new method slicedecon...
2014
Cascaded Sweeps- A Method to Improve Vibroseis Acquisition Efficiency: A Field Test
M. Benabentos, F. Ortigosa, N. Moldoveanu, P. Munoz
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
..., normal move out correction, mute, stack and time-variant filtering. The cascaded sweep data were processed also with pre-correlation noise...
2006
VSP Guided Reprocessing and Inversion of Surface Seismic Data
R. Gir, Dominique Pajot, Serge Des Ligneris
Southeast Asia Petroleum Exploration Society (SEAPEX)
... and shaping for each time gate; the filters are then combined to yield a single time-variant filter for the entire interval. For each time gate...
1988
Digital Simulation Models of Evaporite Sedimentation: ABSTRACT
Louis I. Briggs, Darinka Zigic-Toshich
AAPG Bulletin
..., and their dynamic interaction define the simulation model. It is four dimensional and time variant. Geology of evaporite deposits provides the setting...
1968