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The AAPG/Datapages Combined Publications Database
Showing 1,338 Results. Searched 195,387 documents.
Color Blending on Spectral Decomposition Method for Delineating Geological Features
Garda Erlangga, Kahvi Afafa, Sudarmaji
Indonesian Petroleum Association
... = √ ……………………………………….(2) FFT (Fast Fourier Transform) Fast Fourier Transform is an implemenation to obtain DFT (Discrete Fourier Transform) more precisely...
2013
Time-Domain High-Resolution Radon Transform (Geophysics Paper 4)
Michel Schonewille, Peter Aaron, Carl Notfors
Geological Society of Malaysia (GSM)
... of the method, to the left is the data in the time-offset domain, the 2nd frame shows the Fourier transform with the vertical axis being frequency...
2008
Abstract: Comparison of 3D Interpolation Methods and Validation through Post Stack Inversion: A Case Study from 3D North Amer Oil Field, Gulf of Suez, Egypt; #90254 (2016)
Mohamed Afia, Michel Schonewille, Krishna Ramani, Abdallah Ibrahim, Tarek El Melegy, Tarek Nafie, Christoph Koeninger, Gamal Khedr, Tarek Dahrog, Mostafa El Meihy
Search and Discovery.com
... Fourier transform are widely used beyond aliasing interpolators. 3DTDRI is not widely used, possibly because of its computational cost. We illustrate...
2016
Fast viscoacoustic forward modeling method based on U-net Fourier neural operator
Wenbin Tian, Yang Liu
International Meeting for Applied Geoscience and Energy (IMAGE)
... , which are in the wavenumber domains, separately represent Fourier transform , linear transform and inverse Fourier transform; W stands for local...
2023
Abstract: Five Dimensional Seismic Data Interpolation; #90171 (2013)
Daniel Trad
Search and Discovery.com
... this constraint requires a multidimensional Fourier Transform Fnd. To solve for the unknown data, a cost function is defined and minimized using standard...
2013
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
Attenuation of Residual Multiples and Coherent Noise in the Wavelet Transform Domain, by Tamara Pokrovskaia and Richard Wombell; #90037 (2005)
Search and Discovery.com
2005
Abstracts: Fourier Transform Ion Cyclotron Resonance Mass Spectrometry The Analytical Tool for Heavy Oil and Bitumen Characterization; #90173 (2015)
Thomas B. P. Oldenburg, Melisa Brown, Ben Hsieh, and Steve Larter
Search and Discovery.com
...Abstracts: Fourier Transform Ion Cyclotron Resonance Mass Spectrometry The Analytical Tool for Heavy Oil and Bitumen Characterization; #90173 (2015...
2015
Finite Difference Modeling: Part II: How to clean numeric time dispersion
Lasse Amundsen, Ørjan Pedersen, Martin Landrø
GEO ExPro Magazine
... dispersion implies that the higher frequency components of the signal propagate at the wrong speed. Here we show how the Fourier transform can be used...
2018
ABSTRACT: Anisotropic Wavefield Extrapolators by Fourier Technique
G. F. Margrave
CSPG Special Publications
...ABSTRACT: Anisotropic Wavefield Extrapolators by Fourier Technique G. F. Margrave 1998 106 106...
1998
Seismic Enhancement Resolution in Penobscot Field With Short-Time Fourier Transform Half Cepstrum Method
Taufiq Brilliant Askari, Intan Andriani Putri
Indonesian Petroleum Association
...Seismic Enhancement Resolution in Penobscot Field With Short-Time Fourier Transform Half Cepstrum Method Taufiq Brilliant Askari, Intan Andriani...
2022
Abstract: Detecting Stratigraphic Discontinuities using Wavelet and S-Transform Analysis of Well Log Data; #90174 (2014)
Akhilesh K. Verma, Burns A. Cheadle, William K. Mohanty, Aurobinda Routray, and Lalu Mansinha
Search and Discovery.com
...) is a hybrid form of short-time Fourier transform and wavelet transform that provides a measure of the local Fourier frequency spectrum of the time...
2014
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
Abstract: Gas Field Characterization Through the Use of Multi-Resolution Seismic Attributes; #90211 (2015)
Robert McGrory, Robert Pinnegar, and Robert Stewart
Search and Discovery.com
...-time Fourier transform, but with the advantage of a scalable, wavelet-like Gaussian window that provides multi-resolution analysis. The S transform's...
2015
Lateral Variability in Coals in Western North Slope, Alaska: ABSTRACT
J. S. Youtcheff, P. D. Rao, J. E. Smith
AAPG Bulletin
... and to a lesser extent by rank characterization. Changes in the coal structure and its low temperature ash were also studied by means of Fourier transform...
1985
ABSTRACT: Development of fold hinges in a quartz arenite at subgreenschist facies conditions; #90018 (2003)
Jennie Cook
Search and Discovery.com
... to differences in fold geometry. Fluid inclusions, solution geometry, and potentially the Fourier transform infrared spectroscopy (FTIR) will be used...
2003
ABSTRACT: THE VARIATION OF ORGANIC MATTER IN THE WEATHERING OF COAL GANGUE AND PROCESS SOIL FORMING
Juan-juan Li, Yuegang Tang, Jintao Ma, Xiaole Shi
The Society for Organic Petrology (TSOP)
... analysis, Fourier transform infrared spectroscopy and cross-polarization with magic angle spinning 13 C nuclear magnetic resonance (CP-MAS 13C NMR...
2006
Decoding Molecular Geochemistry of Kerogen From Marcellus Shale
Search and Discovery.com
N/A
Abstract: Time-Frequency Polarization Analysis and Filtering; #90211 (2015)
Robert Pinnegar
Search and Discovery.com
... in the time domain, or the frequency domain, by combining information from both domains to produce a TFR. The windowed Fourier transform is not the only TFR...
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
Spatial Analysis of Basement and Cover Linears by Optical Diffraction - Methods, Results, and Interpretation
Howard J. Pincus, Thomas W. Doe
Utah Geological Association
... Fourier amplitude transform of the input image. This transform is a graph of the distribution of orientations and spatial frequencies of the elements...
1974
Multi-Step Auto-Regressive Reconstruction of Nonuniformly Sampled, Aliased Seismic Records; #41563 (2015)
M. Naghizadeh, M. D. Sacchi
Search and Discovery.com
... composed of linear events and missing traces. First by applying the Discrete Fourier Transform (DFT) in the time direction, the data are transformed...
2015
Abstracts: Evaluation of a New 5D Seismic Volume Reconstruction Method: Tensor Completion versus Fourier Reconstruction; #90173 (2015)
Nadia Kreimer and Mauricio D. Sacchi
Search and Discovery.com
.... The operator indicates the 4D inverse Fourier transform. The cost function (3) is minimized using Iterative Reweighted Least-squares (IRLS) following...
2015
Abstracts: Evaluation of a Fast Algorithm for the Eigen-Decomposition of Large Block Toeplitz Matrices with Application to 5D Seismic Data Interpolation; #90173 (2015)
Jianjun Gao, Vicente Oropeza, and Mauricio D. Sacchi
Search and Discovery.com
... that heavily rely on Fast Fourier Transforms and/or a fast implementation of the non-uniform Discrete Fourier Transform (Sacchi and Liu, 2004; Abma...
2015
Gabor Depth Migration using a New Adaptive Partitioning Algorithm
Yongwang Ma
Search and Discovery.com
... migration, the temporal Fourier transform is applied to the input seismic data to transform to the frequency domain. Then the spatial Fourier...
Unknown