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The AAPG/Datapages Combined Publications Database
Showing 1,342 Results. Searched 195,549 documents.
Understanding Attributes and Their Use in the Application of Neural Analysis Case Histories Both Conventional and Unconventional, #41473 (2014).
Deborah Sacrey, Rocky Roden
Search and Discovery.com
... or frequency bands. Layer thickness determinations Stratigraphic variations DHI characteristics (e.g. shadow zones) Discrete Fourier Transform Fast...
2014
Polynomial Amplitude versus Azimuth Inversion in Horizontally Transverse Isotropic Media, as Tested on Fractured Coal Seams in the Surat Basin
Joseph Kremor, Randall Taylor, Khalid Amrouch
Australian Petroleum Production & Exploration Association (APPEA) Journal
... using the elliptic approximation (Rüger 1998) or by using a Fourier transform (Downton and Roure 2015). Wavelet deconvolution iso To extract...
2017
Abstract: Can Interpolation Help Reduce Acquisition Costs? A Case Study; #90187 (2014)
Ye Zheng, Balazs Nemeth, Christian Escalante, Andrea Crook, Keith Millis, and Laurie Ross
Search and Discovery.com
...). The interpolation method used for the tests is the Anti-Leakage Fourier Transform (ALFT) (Xu et al, 2004), which works in 5D frequency-wavenumber domain...
2014
Thickness Estimation Using Gradient of Spectral Amplitudes from Spectral Decomposition
Tri Wuri Asri Sulistyoati, Lita Novitasari, Sonny Winardhi
Indonesian Petroleum Association
..., steeper gradients of spectral amplitudes represent thicker beds and lower gradients represent thinner beds. In this paper, the Discrete Fourier Transform...
2012
Interpolating High-Resolution Well Log Volume Using Seismic Dip Vectors and Control Grids
Yingwei Yu
Unconventional Resources Technology Conference (URTEC)
... seismic image in the spatial domain I (x,y) is converted into frequency domain Î (u,v) by 2D Fourier transform, and then followed...
2016
EXTENDED ABSTRACT: Geochemical characterization of kerogen density fractions and artificial mixtures of purified macerals from the Eocene Huadian oil shale, NE China
Xiaomin Xie, Jin Xu, Jianzhong Qin, Fenting Wu, Jingwen Lin
The Society for Organic Petrology (TSOP)
... lamalginite (Fig. 1). The Rock-Eval S2 and hydrogen index parameters (Fig. 1) as well as the aliphatic compound peaks in Fourier transform infrared (FTIR...
2021
Seismic Trace Interpolation using Adaptive Prediction Filters
Search and Discovery.com
... Gulunay, N., 2003, Seismic trace interpolation in the Fourier transform domain: Geophysics, 68, 355–369. Haykin, S., 2002, Adaptive Filter Theory, Prentice...
2013
Abstract: Maximizing Knowledge from a Single Drop using Ultra-high Resolution Mass Spectrometry; #90187 (2014)
Thomas B. P. Oldenburg, Melisa Brown, Ken Chanthmontri, Ning Sanguantrakun, Andrew Stopford, Norka Marcano, Ryan Snowdon, Steve Larter, D. Martin Jones, and Ian Head
Search and Discovery.com
.... New technological developments, namely Fourier Transform Ion Cyclotron Resonance Mass Spectrometry (FT-ICR-MS) allows us for the first time to make...
2014
Abstracts: Q Determination, Corner Frequency and Spectral Characteristics of Microseismicity Induced by Hydraulic Fracturing; #90173 (2015)
David W. Eaton
Search and Discovery.com
...) , where ~ denotes the Fourier transform, = 2f and c 1/ is called the corner frequency. The corresponding displacement...
2015
Abstract: Direct Correlations Between Volume Injection Rates and Microseismic Resonances; #90224 (2015)
Jean Baptiste Tary, Mirko van der Baan, and David W. Eaton
Search and Discovery.com
...). Time-frequency transforms, such as the short-time Fourier transform aka spectrogram, are well-suited for the analysis of resonances in continuous...
2015
Enhancing the Quality of Seismic Impedance Data; #41961 (2016)
Satinder Chopra, Ritesh Kumar Sharma, Rebecca Daniels, Brian Schulte, Jim Pllishy, Tammy Chow
Search and Discovery.com
...-t domain. The other domains to which seismic data in the x-t domain can be transformed are the tau-p (using Radon transform) and f-x (using Fourier...
2016
Direct Kerogen Characterization of Marcellus Shale Collected from Marcellus Shale Energy and Environment Laboratory; #80635 (2018)
Vikas Agrawal, Shikha Sharma
Search and Discovery.com
... techniques such as XPS (X-ray photoelectron spectroscopy), ATR-FTIR (Attenuated total reflection-Fourier transform infrared spectroscopy), 13C solid...
2018
Comparison of Seismic Reconvolution and Gabor Deconvolution in Improving Seismic Images to Detect Local Fluid Trapping
Madaniya Oktariena, Wahyu Triyoso
Indonesian Petroleum Association
... a Butterworth wavelet instead. GABOR DECONVOLUTION Gabor Transform is a modification of Fourier Transform to address a non-stationary behavior...
2016
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)
... transforms are conventional techniques for signal analysis. Fourier transform is applied for stationary signals, that is, signals whose properties do...
2020
End-Member Feldspar Concentrations Determined by FTIR Spectral Analysis
Abigail Matteson, Michael M. Herron
Journal of Sedimentary Research (SEPM)
...-squares curve-fitting of Fourier transform infrared spectra with applications to polymer systems: Applied Spectroscopy, v. 31, p. 518-524. BROWN...
1993
Abstract: 5D Matching Pursuit Fourier Interpolation of Sparse Irregular Land Geometry, by W. Gamal Eldin, A. Zarkhidze, B. Hootman, and M. Schonewille, #90188 (2014)
Search and Discovery.com
2014
Abstract: Azimuthal Fourier Coefficient Elastic Inversion; #90174 (2014)
Benjamin Roure and Jon Downton
Search and Discovery.com
...Abstract: Azimuthal Fourier Coefficient Elastic Inversion; #90174 (2014) Benjamin Roure and Jon Downton AAPG Datapages/Search and Discovery Article...
2014
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
Abstracts: Revisiting Homomorphic Wavelet Estimation and Phase Unwrapping; #90173 (2015)
Roberto H. Herrera and Mirko van der Baan
Search and Discovery.com
... ( f ) , S( f ) (2) where S ( f ) , W ( f ) and Ν ( f ) are the Fourier transforms of s (t ) , w(t ) and η (n) respectively. A signal can...
2015
Recognition of Sandstone Depositional Environment: A Grain-Shape Approach, With Example from North Padre Island: ABSTRACT
Jim Mazzullo, Donald Sims
AAPG Bulletin
... 1983 1468 1468 67 9. (September) The shapes of 8,000 fine quartz sand grains from Malaquite Beach, North Padre Island, were analyzed with the Fourier...
1983
Abstract: Harmonic Decomposition of a Vibroseis Sweep Using Gabor Analysis; #90174 (2014)
Christopher B. Harrison, Gary Margrave, Michael Lamoureux, Art Siewert, and Andrew Barrett
Search and Discovery.com
... factor!) The Gabor transform is a nonstationary generalization of the Fourier transform (Margrave et al 2004). Applying the continuous Gabor transform...
2014
Using New Techniques to Extract Stratigraphic Information from Seismic Data in Tight Gas Reservoirs
Heidy Correa, Fa Dwan, David Potter
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... There are several techniques available for spectral decomposition, including DFT (discrete fourier transform), MEM (maximum entropy method), CWT (continuous...
2009
Spectral Induced Polarization: A New Way for Hydrocarbon Prospect Prediction
Feisal Dirgantara
Indonesian Petroleum Association
..., the stack is divided by the number of cycles to obtain an average waveform for each channel. At this point, a Fast Fourier Transform (FFT) is performed...
2008
Synthetic Stratigraphy with a Stochastic Diffusion Model of Fluvial Sedimentation
Jon D. Pelletier, Donald L. Turcotte
Journal of Sedimentary Research (SEPM)
.... This is a Gaussian noise sequence. Adjacent values are totally uncorrelated. (2) A discrete Fourier transform is taken of the random values. The Fourier coefficients...
1997
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