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The AAPG/Datapages Combined Publications Database
Showing 4,574 Results. Searched 195,364 documents.
Fast viscoacoustic forward modeling method based on U-net Fourier neural operator
Wenbin Tian, Yang Liu
International Meeting for Applied Geoscience and Energy (IMAGE)
... The Review of Constant fractional visco-acoustic equation 2 The method of Fourier neural operators The 2D constant fractional Laplacian visco-acoustic...
2023
Abstract: Properties of Gabor Operators for Seismic Imaging; #90171 (2013)
Michael P. Lamoureux and Gary F. Margrave
Search and Discovery.com
... multipliers used in seismic imaging. Theory of Gabor transforms and multipliers The Gabor transform of a signal is given as a localized Fourier transform...
2013
Abstract: Inversion Approach to Calculate Instantaneous Frequency; #90174 (2014)
Jiajun Han and Mirko van der Baan
Search and Discovery.com
.... The short-time Fourier transform with a 170ms time window (Figure 4) does not distinguish the two Ricker wavelets clearly at 1.1s due to its fixed time...
2014
Abstract: Empirical Mode Decomposition Based Instantaneous Spectral Analysis and its Applications to Heterogeneous Petrophysical Model Construction; #90171 (2013)
Jun-Wei Huang and Bernd Milkereit
Search and Discovery.com
..., such as windowed Fourier transform, wavelet transform, S-transform and Matching Pursuit Decomposition, etc. This paper described the Hilbert-Huang...
2013
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
Abstracts: Empirical Mode Decomposition and Robust Seismic Attribute Analysis; #90173 (2015)
Jiajun Han and Mirko van der Baan
Search and Discovery.com
... that obtained using traditional time-frequency analysis tools, such as Fourier transform and wavelet transforms. Also known as the Hilbert-Huang transform...
2015
Abstracts: Gabor Multipliers for Seismic Modeling and Wavefield Propagators; #90173 (2015)
Michael P. Lamoureux, Gary F. Margrave, and Peter C. Gibson
Search and Discovery.com
... by Gabor multipliers and generalized frame operators. These numerical algorithms are based on a localized version of the Fourier transform and share many...
2015
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
... beam passing through a transparent reduction of the map. The diffraction pattern obtained in such a way is the two-dimensional Fourier transform...
1974
Seismic Time-Frequency Analysis by Empirical Mode Decomposition; #41513 (2015)
Jiajun Han, Mirko van der Baan
Search and Discovery.com
... Fourier transform. Application on field data thus offers the potential of highlighting subtle geologic structures that might otherwise escape...
2015
Abstract: Reflectivity Color Correction in Gabor Deconvolution; #90211 (2015)
Carlos Montana and Gary Margrave
Search and Discovery.com
...) is the reflectivity, and where Q is the attenuation parameter and H indicates the Hilbert transform operation. Equation (2) states that the Fourier transform...
2015
Utilizing Variably Integrated Spectral Frequency to Extract Entire Fluvial Systems
Pongthep Thongsang, Mirza Naseer Ahmad
Indonesian Petroleum Association
.... Although it is not an absolute values as Fourier transform but it measures similarity between a mother wavelet and a seismic signal (relative frequency...
2013
Mackenzie Delta: A Case of One Residual Gravity Anomaly and 16 Dry Exploration Wells; #41587 (2015)
Hassan Hassan
Search and Discovery.com
... in the Foothills of Northeastern British Columbia using 2D Wavelet Transform* Hassan Hassan1 Search and Discovery Article #41587 (2015)** Posted March 16...
2015
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
Application of Robust Noise Reduction on a Land 3D Seismic Data
Agus Abdullah, Jesse Shaw
Indonesian Petroleum Association
... of a spatial Fourier transform: (1) − Lxc ks r ∞ ~ GBj ( s, f ) = eikr ros ∫ ω + (ros − rd )... j −∞ λ λ r ... exp i 2π n − n d...
2012
Abstract: Prestack Depth Migration with the Gabor Transform; #90211 (2015)
Yongwang Ma and Gary Margrave
Search and Discovery.com
...-interpolation (GPSPI) wavefield extrapolation using a Gabor, or windowed Fourier, transform to localize the wavefield. The key to an efficient algorithm...
2015
Creating Singularity Order Attribute of Seismic Signals Using Continuous Wavelet Transform (CWT) for Stratigraphic Interpretation Tools
A.M. Ustad, M.S. Jaya, F.J. Herrman
Indonesian Petroleum Association
... (Herrmann and Stark, 1999). Fractional differentiation/integration is defined by Fourier transform (Zähle, 1995), ) dβ β f (t ) α (iω ) f (ω ) β dt...
2007
Abstract: Estimation of Dispersive Parameters of Surface Wave Using the Generalized S Transform; #90187 (2014)
Roohollah Askari and Robert J. Ferguson
Search and Discovery.com
.... [email protected] and Robert J. Ferguson, CREWES, University of Calgary. Summary We use a mathematical model based on the generalized S transform...
2014
Abstracts: Revisiting Homomorphic Wavelet Estimation and Phase Unwrapping; #90173 (2015)
Roberto H. Herrera and Mirko van der Baan
Search and Discovery.com
... out to be phase unwrapping. In this paper we review several existing phase unwrapping techniques and discuss their advantages and inconveniences...
2015
Spectral Decomposition Methods: Applicability and Limitations, by Satinder Chopra and Kurt J. Marfurt; #41323 (2014).
Search and Discovery.com
2014
Analysis of Fracture Injection Tests using Signal Processing Approach
I. Eltaleb, A. Rezaei, F. Siddiqui, M. M. Awad, M. Mansi, B. Dindoruk, M. Y. Soliman
Unconventional Resources Technology Conference (URTEC)
.... We briefly review the mathematical aspects of the proposed approach in the next section. After that, we present four DFIT examples in the Results...
2020
Abstract: Numerical Classification of Sandstone Pore Structure, by J. C. Davis, F. W. Preston; #90972 (1976).
Search and Discovery.com
1976
The emergence and impact of scientific machine learning in geophysical exploration
Umair bin Waheed
International Meeting for Applied Geoscience and Energy (IMAGE)
... in the field of geophysical modeling and inversion using emerging SciML paradigms, including physics-informed neural networks (PINNs), Fourier neural...
2023
Abstract: Interpolation of Aliased Seismic Data in the Curvelet Domain; #90172 (2014)
Mostafa Naghizadeh, Mauricio D. Sacchi
Search and Discovery.com
... propose a robust interpolation scheme for aliased regularly sampled seismic data that uses the curvelet transform. In a first pass, the curvelet transform...
2014
Improving curvature analyses of deformed horizons using scale-dependent filtering techniques
Stephan Bergbauer, Tapan Mukerji, Peter Hennings
AAPG Bulletin
... (Fourier [spectral] analysis, wavelet transform filtering, singular value decomposition, factorial kriging) on a seismically mapped horizon in the North...
2003
Increasing The Resolution of Seismic Imaging With Spectral Blueing, Spectral Decomposition RGB And HSV Blending to Delineate The Fluvial Facies on Fluvio Deltaic Environment
Aji Darma Maulana, Nine Safira, Ongki Ari Prayoga, Egie Wijaksono, Alit Ascaria
Indonesian Petroleum Association
... Fourier transform on the reflectivity data from the acoustic impedance. The amplitude spectrum of the data well will be carried out by a mathematical...
2022