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The AAPG/Datapages Combined Publications Database
Showing 1,541 Results. Searched 200,693 documents.
Sieve Data-Size and Shape Information
Stephen K. Kennedy, Thomas P. Meloy, T. E. Durney
Journal of Sedimentary Research (SEPM)
... periodically during the sieving of single samples and analyzed using Fourier methods. It was found that sediment with the largest harmonic amplitudes...
1985
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
Abstract: Multi-component or Vector Dip Filtering Using the S-transform; #90187 (2014)
Kristof De Meersman and Majda Mihoub
Search and Discovery.com
... Fourier transform and the Gabor transform. It also shares many properties with wavelet transforms. The main difference is that the wavelet transform works...
2014
Fourier Analysis of the Laminated Facies of the Middle Bakken Member, Sanish-Parshall Field, Mountrail County, North Dakota, #50996 (2014).
Virginia A. Gent, Stephen A. Sonnenberg
Search and Discovery.com
... analysis method utilizes Fast Fourier Transform (FFT) and periodograms of lamina sets to determine if an underlying tidal signature is present. Results...
2014
Subsidence and Heat Flow in Intracontinental Basins and Passive Margins
Jean-Claude Mareschal
CSPG Special Publications
... where similar relationships can be derived between the spectra. The Fourier transform f(k) of any function f(x) is defined by the pair of equations...
1987
Integrating Surface Seismic, Microseismic, Rock Properties and Mineralogy in the Haynesville Shale.
Neil Peake, Gabino Castillo, Norbert Van de Coevering, Simon Voisey, Antoine Bouziat, Kevin Chesser, Guy Oliver, Chi Vinh Ly
Unconventional Resources Technology Conference (URTEC)
.... The azimuthal Fourier coefficients were calculated by performing a Fourier transform of azimuthally sectored seismic data over particular ranges...
2014
Recognition of Sandstone Depositional Environment: A Grain Shape Approach, with an Example from North Padre Island
Jim Mazzullo , Donald Sims
GCAGS Transactions
... Vol. 33 (1983), The shapes of 8000 fine quartz sand grains from Malaquite beach, North Padre Island, were analyzed with the Fourier shape technique...
1983
Deep-Water Depositional Facies and Reservoir Quality Evaluation Based on Fourier Analysis of Gamma-Ray Logs
Fillon, Richard H., Lawless, Paul N.
GCAGS Transactions
... Fourier transform, the simpler fast Fourier transform (FFT) algorithm and wavelet analysis (WA), has effectively demonstrated cyclicity in well log proxy...
2002
Sources of Shoaling in Charleston Harbor Fourier Grain Shape Analysis
Donald S. Van Nieuwenhuise, Jeffrey M. Yarus, Robert S. Przygocki, Robert Ehrlich
Journal of Sedimentary Research (SEPM)
...Sources of Shoaling in Charleston Harbor Fourier Grain Shape Analysis Donald S. Van Nieuwenhuise, Jeffrey M. Yarus, Robert S. Przygocki, Robert...
1978
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
... Blueing, it is necessary to do Well to Seismic Tie. The main stages after the preparation stage are Fast Fourier Transform on seismic data...
2022
Application of Seismic Data to Lithology and Hydrocarbon Identification in East China
Qian Shao-Xin, Liu Wen-Lin
Circum Pacific Council Publications
... oil from 14 wells and covers an area of about 3 km . Frequency spectra are commonly estimated by Fourier Transform. The application of Fourier Transform...
1989
An improved Holo-Hilbert spectral analysis guided by fast matching pursuit
Chaohe Wang, Zhaoyun Zong
International Meeting for Applied Geoscience and Energy (IMAGE)
... layer. Figure 2c shows the time-frequency spectrum obtained by the short time Fourier transform and HoloHilbert spectrum obtained by the Holo-Hilbert...
2024
The effects of marine currents on seismic data
Gary Hampson
International Meeting for Applied Geoscience and Energy (IMAGE)
... (Bracewell, 1986). Using Claerebout’s (1985) Fourier kernel, this says that the equivalent Fourier domain Galilean transform is 1 u (3...
2024
AAPG Hedberg Series, no. 1. Chapter 1: Advances in Hydrocarbon Fluid-inclusion Microanalysis and Pressure-volume-temperature Modeling: Diagenetic History, Pressure-temperature, and Fluid-flow Reconstruction — A Case Study in the North Potwar Basin, Pakistan
Nicole Guilhaumou, Lakhdar Benchilla, Pascal Mougin, Paul Dumas
AAPG Special Volumes
... of the combination of the in-situ microanalysis of hydrocarbon fluid inclusions by Synchrotron Fourier transform infrared spectroscopy and PVTX modeling coupled...
2004
Stochastic Analysis of Monthly Precipitation Data in Alabama
Emmanuel E. Udoh, Nosa O. Egiebor, Kafui Nyavor
GCAGS Transactions
... be approximated to the well known polynomial - Fourier series. With the help of Fourier analysis (for one- dimension) the dominant periodic components can...
1998
Abstract: Maximum Entropy Acquisition Design and Optimal Interpolation; #90187 (2014)
Mauricio D. Sacchi, Mafijul Islam Bhuiyan, and Nasser Kazemi
Search and Discovery.com
... s(n, m) = 1 when there is an observation and s(n, m) = 0 when the grid point is empty. It is possible to show that the Discrete Fourier Transform (DFT...
2014
Application of Wave Equation Tomography in Frontier Areas
Tien-when Lo, Guy W. Purnell
Indonesian Petroleum Association
... and Toksoz, 1987): where (ks, kg) is the 2-D Fourier transform of the scattered wavefield, r is the position vector, ks and ks are the wavenumbers...
1990
Mini Seismic Processing System for Training and Research Purposes
Suprajitno Munadi, Bambang Triharjanto
Indonesian Petroleum Association
... of the signal divided by the corresponding wave number. This display facilitates the trainee geophysicist in understanding the two dimensional Fourier...
1993
Interpolation Using Higher Dimensions: A Case Study ON KE2 Three-Dimensional Transition Zone Seismic Survey, Madura Field, Indonesia
Cecep Sutisna, Frans Langitan, Vishal Kumar, Keat Huat Teng, Pongga Wardaya
Indonesian Petroleum Association
... like Minimum Weighted Norm Interpolation (Liu and Sacchi, 2004, Trad, 2009), Anti-Leakage Fourier Transform (ALFT) reconstruction (Xu et al., 2005...
2015
Combined AVO and Spectral Decomposition Analyses to Characterize Gas Sand Reservoir Below Tuning Thickness Condition
Julian Saputro, Jaenudin, Alexis Badai Samudra, Enik Puji Lestari, Sugiono, Aldis Ramadhan, Yosi Hirosiadi
Indonesian Petroleum Association
... Ratio (from Zoepritz Equation, decreasing poisson ratio value sensitive to hydrocarbon existence). Discrete Fourier Transform (DFT) method was applied...
2016
Poststack fracture prediction technique based on phase decomposition
Li Hai Liang, Pan Hui, Gao Jian Hu, Gui Jin Yong
International Meeting for Applied Geoscience and Energy (IMAGE)
... recovered by xe (n) or can be recovered by xo (n) except for zero. And the x(n) even component Fourier transform is equal to the real part of the x(n) Fourier...
2024
Extended Abstract: What is Wave Equation Pre-stack Depth Migration? An Overview
Andrew Long
Petroleum Exploration Society of Australia (PESA)
... solutions, finite-difference, split-step Fourier, delayed shot, etc. Simply put, each flavour represents the means by which we attempt to obtain numerical...
2004
Seismic Modelling in 3D for Migration Testing
Search and Discovery.com
... frequency, F is the 2D Fourier transform over the lateral spatial coordinates, F−1 is its inverse, ψsource is a mathematical model of the source, and iz k 2...
2013
Abstract: 3D–3С Full-Wave Modeling in Anisotropic 2.5D Medium; #90171 (2013)
A. Kostyukevych, N. Marmalevskyi, Y. Roganov, and V. Tulchinsky
Search and Discovery.com
... (1995) restrict the task of 2.5D acoustic modeling of a constant density medium to a linear equation system by Fourier-transform along variables time...
2013
Abstract: Generalized Frames for Gabor Operators in Seismic Imaging; #90172 (2014)
Michael P. Lamoureux, Gary F. Margrave, Peter C. Gibson
Search and Discovery.com
... propagated by one step at the appropriate velocity using a Fourier-based phase propagator, and the two components reassembled before the next time...
2014