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The AAPG/Datapages Combined Publications Database
Showing 1,338 Results. Searched 195,387 documents.
Optical Methods and Equipment for Processing Geophysical Data: ABSTRACT
Arthur L. Ingalls
AAPG Bulletin
... is a 2-dimensional filtering equipment in which 2 Fourier transforms are performed sequentially on the in-put transparency. The first transform produces...
1965
Seismic Migration Interpolation using Time-Shift Imaging Condition
Mark Ng
Search and Discovery.com
... depth steps unless a post-image interpolation (i.e., up-sampling) is applied to the depth output. But in this paper, inverse temporal Fourier...
Unknown
Seismic Migration Interpolation using Time-Shift Imaging Condition
Mark Ng
Search and Discovery.com
... depth steps unless a post-image interpolation (i.e., up-sampling) is applied to the depth output. But in this paper, inverse temporal Fourier...
Unknown
Abstracts: Application of Fractional Fourier Transform in Cepstrum Analysis; #90173 (2015)
K. H. Miah, R. H. Herrera, M. van der Baan, and M. D. Sacchi
Search and Discovery.com
... and Cepstrum In the Fractional-Cepstrum, the forward and inverse Fourier transforms are replaced with their corresponding FRFTs. The main difference...
2015
Abstract: 3D, Anisotropic Phase Shift Operators; #90171 (2013)
Robert J. Ferguson and Gary F. Margrave
Search and Discovery.com
... is acoustic velocity. Unit normal (2) For numerical wave-propagation in the Fourier domain k 1, k 2, , where k 1 a n d k 2 are the Fourier...
2013
Abstract: 3D, Anisotropic Phase Shift Operators; #90171 (2013)
Robert J. Ferguson and Gary F. Margrave
Search and Discovery.com
... is acoustic velocity. Unit normal (2) For numerical wave-propagation in the Fourier domain k 1, k 2, , where k 1 a n d k 2 are the Fourier...
2013
An Application of Optical Fourier Analysis to the Study of Geological Linear Features in ERTS-1 Imagery of California
Aderbal C. Corrêa, Ronald J. P. Lyon
Utah Geological Association
... experiment is based on the relationship between light diffraction and the Fourier transforms. The coherent light from a laser (the light is essentially...
1974
Spatial Analysis of Basement and Cover Linears by Optical Diffraction - Methods, Results, and Interpretation
Howard J. Pincus, Thomas W. Doe
Utah Geological Association
... photography from the U.S.A. and Canada. Apparent dihedral angles are detectable in the transforms. Fourier transform processing integrates...
1974
Structural Analysis Using Spatial Filtering in Interior Plains of South-Central Alberta
J. E. Robinson , H. A. K. Charlesworth , M. J. Ellis
AAPG Bulletin
... domain and its equivalent to the Fourier transform of its amplitude and phase frequency responses. In the case of the unit impulse response all frequencies...
1969
Abstracts: Accurate Declipping Hybrid Algorithm for Ground Penetrating Radar Data; #90173 (2015)
Akshay Gulati and R. J. Ferguson
Search and Discovery.com
... fast fourier transforms. Kunis, S., and Potts, D., 2005, Nfft2.0 user’s manual: available online at: http://www.math.mu luebeck.de/potts/nfft/, version...
2015
ABSTRACT Sedimentology and Architecture of Point Bar Deposits Cretaceous McMurray Formation Alberta: Cyclic Sedimentation and Heterogeneity Prediction, #90104 (2010)
Labrecque Phillip; Hubbard Stephen M.; Jensen Jerry L.
Search and Discovery.com
... are on the order of 10 km . Statistical analysis of wireline logs using correlograms, Fourier transforms and wavelet transforms demonstrate cyclicities of varying...
2010
Seismic Time-Frequency Analysis by Empirical Mode Decomposition; #41513 (2015)
Jiajun Han, Mirko van der Baan
Search and Discovery.com
... to be significantly higher than that obtained using traditional time-frequency analysis tools, such as short time Fourier and wavelet transforms. The empirical mode...
2015
Computer Modeling of Minnelusa (Pennsylvanian-Permian) Paleotopography in Eastern Powder River Basin, Wyoming, with a Case History: ABSTRACT
R. Mark Maslyn, F. Jay Phillips
AAPG Bulletin
... with a wavelength of approximately 3 mi (5 km). Double Fourier transforms are appropriate in modeling this kind of cyclic data. For a test township...
1984
Interactive Gridding: ABSTRACT
James A. Downing
AAPG Bulletin
... derived from gridded surface models. Processing and analysis techniques such as surface filtering, trend analysis, Fourier transforms, and simple...
1982
Comparison of Seismic Reconvolution and Gabor Deconvolution in Improving Seismic Images to Detect Local Fluid Trapping
Madaniya Oktariena, Wahyu Triyoso
Indonesian Petroleum Association
... of the real subsurface reflectivity. The condition is even filtered more during Post-Stack Seismic data processing. The boxcar convolution and utilized...
2016
Abstract: Cyclic Sedimentary Record in Point Bar Deposits, Cretaceous McMurray Formation, Alberta Basin, Canada, by P. Labrecque; #90094 (2009)
Search and Discovery.com
2009
ABSTRACT: Full Data Reconstruction of 3-D Wide Azimuth Data Using Sparse Radon Transforms, by Tsingas, Constantine; Verschuur, Eric; #90141 (2012)
Search and Discovery.com
2012
Pre-drill Reservoir Evaluation Using Passive Seismic Imaging
Charles Sicking, Jan Vermilye, Ashley Yaner
Unconventional Resources Technology Conference (URTEC)
... becomes the addition of the individual Fourier transforms. 𝐹 [ln|𝑆|] = 𝐹 [ln|𝑊|] + 𝐹[ln|𝑅|] The properties of the cepstral transform allows...
2016
Abstract: Empirical Mode Decomposition (EMD) of Turner Valley Airborne Gravity Data in the Foothills of Alberta, Canada; #90211 (2015)
Hassan Hassan
Search and Discovery.com
... transforms because it handles nonlinear and non-stationary signals. The Fourier transform (FFT) is designed to work with linear and stationary signals...
2015
Abstract: 3D Focusing Inversion of Multi-transient EM Data in the Frequency Domain; #90171 (2013)
Guangpin Li, Johnathan Linfoot, and Bruce Hobbs
Search and Discovery.com
... of frequency. Responses at any number of frequencies may be used and these are available through Fourier transformation of the earth’s impulse...
2013
Abstracts: Fractional Fourier Transform in Coherent Noise Attenuation; #90173 (2015)
K. H. Miah and M. D. Sacchi
Search and Discovery.com
... and Applications: Soc. Industrial and Applied Math. Review, 33, 389-404. Mcbride, A. C. and Kerr, F. H., 1987, “On Namias” fractional Fourier transforms...
2015
ABSTRACT: Direct Hydrocarbon Indication Using Instantaneous Spectral Analysis; #90017 (2003)
John Castagna
Search and Discovery.com
... excellent time and frequency localization utilizing wavelet transforms to avoid windowing problems that complicate conventional Fourier analysis...
2003
Abstract: Automated Scanning of Fine-scale Geological, Petrophysical and Geomechanical Rock Properties and Its Application in Reservoir Characterization
Ramil S. Ahmadov, Greg N. Boitnott
Houston Geological Society Bulletin
... information, a geomechanical probe named the Impulse Hammer, and an FTIR (Fourier Transform Infrared Spectroscopy) probe to provide mineralogical...
2019
Computer Modeling of Minnelusa Formation (Pennsylvanian-Permian) Paleotopography in Eastern Powder River Basin, Wyoming: ABSTRACT
R. Mark Maslyn
AAPG Bulletin
... mi (5 km). Double Fourier transforms are most appropriately used in modeling where such a cyclicity exists. The resulting double Fourier transform...
1982
Fracture Analysis at St
Search and Discovery.com
N/A