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The AAPG/Datapages Combined Publications Database
Showing 22,526 Results. Searched 200,663 documents.
Bulk Density--Water Content Relationship in Marine Silts and Clays
Adrian F. Richards, Terrence J. Hirst, James M. Parks
Journal of Sedimentary Research (SEPM)
... sediment in an unextruded core using fast neutron and gamma ray attenuation: Deep-Sea Res., v. 17, p. 917-922. DAVIDSON, J. M., J. W. BIGGAR, AND D. R...
1974
Seismic Foldout: FWI Imaging Under Complex Geological Anomalies
Adriana Citlali Ramirez, Simon Baldock, Stuart Fairhead, TGS
GEO ExPro Magazine
... Image sections, c) 15Hz DM FWI velocity model. structures are difficult to image traditionally due to seismic attenuation and complex overburden...
2023
Deriving Subsurface Insight from Seismic
Gregory Partyka
Indonesian Petroleum Association
... of the noise attenuation. It is important to work with a stable source wavelet. If the source wavelet characteristics vary temporally and /or spatially...
2015
Surface Gamma Ray Logs: A Correlation Tool for Frontier Areas: DISCUSSION
Duncan R. Cowan , Keith J. Myers
AAPG Bulletin
...) paper, "Surface Gamma-Ray Logs: A Correlation Tool for Frontier Areas," is a useful contribution to a rather neglected subject area, and the author...
1988
Integrated Field Study of Heavy Oil Reservoirs using Integrated Geophysics, Geochemistry, and Numerical Modeling Techniques
Mathew Fay
Search and Discovery.com
... seismic amplitude anomalies and time shift anomalies which may be caused by wormholes and foamy oil. The results can be very useful and valuable...
Unknown
Abstract: Prestack Rank-Reduction-Based Noise Suppression: Practise; #90171 (2013)
Lynn Burroughs and Stewart Trickett
Search and Discovery.com
... it are to: - Reveal signal in noisy areas. Improve AVO and azimuthal analysis. Improve multiple attenuation, velocity analysis, and statics correction...
2013
Integrated Field Study of Heavy Oil Reservoirs using Integrated Geophysics, Geochemistry, and Numerical Modeling Techniques
Mathew Fay
Search and Discovery.com
... seismic amplitude anomalies and time shift anomalies which may be caused by wormholes and foamy oil. The results can be very useful and valuable...
Unknown
Abstract: Prestack Rank-Reduction-Based Noise Suppression: Practise; #90171 (2013)
Lynn Burroughs and Stewart Trickett
Search and Discovery.com
... it are to: - Reveal signal in noisy areas. Improve AVO and azimuthal analysis. Improve multiple attenuation, velocity analysis, and statics correction...
2013
Abstract: A Comparison of Standard Migration with EOM for Hussar Data; #90174 (2014)
Thais A. Guirigay, John C. Bancroft, and J. Helen Isaac
Search and Discovery.com
... processing: geometry, first breaks, statics, elevation statics, geometry spreading compensation, noise attenuation using Radial filter, Gabor deconvolution...
2014
Current Production Logging
C. B. Davenport, R. S. Millhone
Indonesian Petroleum Association
... Injection Profiling Sonic logging techniques involve attenuation, reflection, refraction, and travel time concepts. All tools may suffer from multipath...
1981
Wavelet Processing
Lee Lu
Indonesian Petroleum Association
.... The homomorphic deconvolution method is useful if the amplitude specturm of the source wavelet is smooth with respect to that of the desired signal...
1978
Abstract: Modelling Near-field Effects in VSP-based Q-estimation Part 2: Modelling Results; #90171 (2013)
Arnim B. Haase and Robert R. Stewart
Search and Discovery.com
... dB is applied to the spectra in Figure 1; the relative amplitudes are retained. We note that attenuation increases with depth z and frequency ω...
2013
Abstract: Statistical Biases in Microseismicity Parameters; #90187 (2014)
Melanie Grob and Mirko van der Baan
Search and Discovery.com
... of Alberta, Edmonton AB T6G 2E1, Canada Summary Microseismic event analysis has become a useful tool to monitor hydraulic fracturing experiments. The most...
2014
Seismic Processing Applications on a Personal Computer
Geophysical Service (Malaysia) Sdn. Bhd.
Geological Society of Malaysia (GSM)
...). Such a display format is useful for analyzing loss of amplitude as a function of depth and frequency as an aid in developing a Q-model of attenuation...
1989
Supercomputers for Beginners: PART III: GPU-Accelerated Computing
Lasse Amundsen, Martin Landrø, Børge Arntsen
GEO ExPro Magazine
... provide mechanisms for data exchange between the host CPU and synchronising the GPU cores. A modern supercomputer system may then in practice consist...
2016
AVO Analysis of a Pennsylvanian Age Channel Sandstone in the Arkoma Basin, Oklahoma
Eric Kubera
Oklahoma City Geological Society
... on the energy passing through. One of the attenuation mechanisms, spherical divergence, causes the amplitude to decay as 1/(distance traveled) (Yilmaz, 1987...
1997
Heavy Metal Sorption Capabilities of Some Soils from Active Landfill Sites in Selangor
Wan Zuhairi Wan Yaacob
Geological Society of Malaysia (GSM)
... conductivity and high attenuation property on pollutants. In this study, some soil samples have been collected from (or adjacent to) active landfill sites...
2003
Multidomain simultaneous joint inversion for near-surface characterization A case study from onshore US
Nate Johnson, Ali Ahmed Hussein Mohamed, Zhanna Jackson, Seth Riseman, Kevin Douglas
International Meeting for Applied Geoscience and Energy (IMAGE)
... Refracted and surface (Rayleigh) waves contain complementary information useful for characterizing nearsurface geology. Refracted waves have relatively...
2023
Characterization of Seismic Anomalies using Converted Waves: A Case History from East Natuna Basin
Lotfi Ben-Brahim, Ronan Petton, Michel Couderc, Agus Djamhoer
Indonesian Petroleum Association
... on the conventional data. It is interpreted as a gas migration front through an alternating series of sands and shales. Visualization tools are a useful...
2000
Relative inversion for extended elastic impedances
Peter Harris, Kathryn Young
International Meeting for Applied Geoscience and Energy (IMAGE)
... and wavelet stretch from near to far angles due to NMO stretch or differential attenuation, both of which make the gradient even less stable. The extended...
2024
Subsalt imaging using elastic FWI: A case study from Walker Ridge, Gulf of Mexico
Chirag Parekh, Andrew Stephenson, Juan Perdomo, Claudia Flores, Christopher McMorland, Matt Vander Griend, Austin Boles, Andrew Fuhrmann
International Meeting for Applied Geoscience and Energy (IMAGE)
... in the industry, worldwide, to update velocity models despite its obvious limitations. This type of approximation is useful in media that possess a mild...
2024
Seismically Driven Reservoir Characterization Using an Innovative Integrated Approach: Application to a Fractured Reservoir (Geology Paper 10)
Abdel M Zellou, Soren Christensen, Tanja Ebbe Dalgaard, Gary Robinson
Geological Society of Malaysia (GSM)
..., causing strong attenuation and poor quality of the seismic data in this portion of the field. The work presented in this paper was initiated with a 6...
2008
Abstracts: True-Amplitude PS Prestack Time Migration via 5D Interpolation; #90173 (2015)
Peter W. Cary, Albert Zhang
Search and Discovery.com
... and anisotropy parameterization, anti-aliasing, reflection amplitude preservation, random noise attenuation and 5D interpolation prior to converted wave...
2015
Abstracts: Seismic Attributes on Frequency-enhanced Seismic Data; #90173 (2015)
Satinder Chopra, Kurt J. Marfurt, Somanath Misra
Search and Discovery.com
... conventional procedures are adopted to compensate for frequency attenuation. A common practice has been to use a two- or three-window statistical deconvolution...
2015
Abstracts: What Receivers will we use for Low Frequencies?; #90173 (2015)
R. Malcolm Lansley and Peter Maxwell
Search and Discovery.com
... acquiring vibrator data using conventional geophone receivers, we typically experience an overall 30dB/octave obstacle that must be overcome to recover useful...
2015