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The AAPG/Datapages Combined Publications Database
Showing 4,875 Results. Searched 200,293 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
A Semi-Analytical Poroelastic Solution of Induced Pressure-Stress Changes and Its Applications to Depletion Delineation of Transversely Isotropic Shale Reservoirs
Shihao Wang, Yuzhe Cai, Bin Wang, Yunhui Tan, Kainan Wang, Jiehao Wang, Xinghui Liu, Yuguang Chen
Unconventional Resources Technology Conference (URTEC)
... approach is based on Fourier transform with the assumption of homogeneous and transversely isotropic reservoirs. The developed model converts a given...
2024
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
Upscaling acoustic wave equation using renormalization group theory
Ajay Malkoti, Shravan M. Hanasoge, Rene Edouard Plessix
International Meeting for Applied Geoscience and Energy (IMAGE)
... of the Gaussian curve. Finally, the values on the coarse grid are obtained with the inverse Fourier transform. Renormalization group theory (URG...
2022
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
Multichannel compressive sensing for seismic data reconstruction using joint sparsity
Iga Pawelec, Michael Wakin, Paul Sava
International Meeting for Applied Geoscience and Energy (IMAGE)
... distances to reconstruct data with one varying spatial coordinate, while Xu et al. (2005, 2010) propose an antileakage version of the Fourier transform...
2022
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
Ultrasound reverse time migration for human brain imaging
Ting Li, Bo Feng, Yang Zhou, Rongwei Xu, Huazhong Wang
International Meeting for Applied Geoscience and Energy (IMAGE)
...) method to reduce spatial numerical dispersion, which uses the Fourier transform to compute spatial derivatives accurately. Secondly, to suppress...
2024
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
Reservoir prediction technology based on tuning spectral decomposition
Wang Qingzhen, Wang Jianhua, Zheng Ying
International Meeting for Applied Geoscience and Energy (IMAGE)
... short-time Fourier transform, Gabor transform, wavelet transform, S-transform, generalized S-transform, etc.(Marfurt and Kirlin, 2001); Quadratic time...
2024
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
AVO-preserving seismic data interpolation by orthogonal polynomial decomposition and mathematical morphological filtering
Yanxin Zhou, Yangang Mo, Junzhou Liu, Dajian Jiang
International Meeting for Applied Geoscience and Energy (IMAGE)
... based on mathematical transformation and compressed sensing can realize signal reconstruction and denoising at the same time, like Radon transform...
2024