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The AAPG/Datapages Combined Publications Database
Showing 1,541 Results. Searched 200,673 documents.
Abstracts: FX Cadzow / SSA Random Noise Filter: Frequency Extension; #90173 (2015)
Alexander Falkovskiy, Elvis Floreani, Gerry Schlosser
Search and Discovery.com
... entries of the same inverse Fourier transform returns the filtered traces. Instead of composing these extended matrices only over space dimensions...
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
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
Contribution of Salinas River Sand to the Beaches of Monterey Bay, California, During the 1978 Flood Period: Fourier Grain-Shape Analysis
Ross A. Clark , Robert H. Osborne
Journal of Sedimentary Research (SEPM)
...Contribution of Salinas River Sand to the Beaches of Monterey Bay, California, During the 1978 Flood Period: Fourier Grain-Shape Analysis Ross...
1982
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
ABSTRACT: Study on FTIR of high-organic-sulfur coal and the structure of sulfur-containing compounds of its extracts
Cong Chen, Yuegang Tang, Xiaolong Li, Yewei Sun
The Society for Organic Petrology (TSOP)
... and their extracts were studied using Fourier Transform Infrared Spectroscopy (FTIR) and Gas Chromatography-mass Spectrometer (GC-MS) to explore the evolution...
2018
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
ABSTRACT: The chemical structure evolution during coal pyrolysis studied by FTIR and Py-GC
Wu Li, Yan-ming Zhu, Yang Wang
The Society for Organic Petrology (TSOP)
... The molecular composition of organic matter formed during pyrolysis is complex. The chemical structure evolution can be simulated using Fourier transform...
2019
Seismic Estimation of Point-Bar Sands Using Simple Modeling Procedures
Robert Dennison
Indonesian Petroleum Association
... the reciprocal i.e. i/f, of every frequency point. Once G(w) had been computed an Inverse Fourier Transform converts the wavelet spectrum back into the time domain...
1984
Abstract: Tertiary Deltaic Cycles on Unstable Craton Margin, Banks Island, Arctic Canada, by A. D. Miall; #90972 (1976).
Search and Discovery.com
1976
Aeolian Delivery of Sand to Pre-Silurian Stable Shelves Resolves Apparent Paradoxical Occurrence of Transgressive Sheet Sands: Abstract
J. M. Mazzullo, Robert Ehrlich
CSPG Special Publications
... of rate of deposition. An analysis of the morphology of quartz grains (using Fourier and SEM techniques) from samples from the St. Peter Sandstone...
1986
Abstract: Automated Cuttings Analysis for Unconventional Applications
Don Hall
West Texas Geological Society
... quadrupole mass spectrometry, X-ray fluorescence analysis and diffuse-reflectance infrared Fourier-transform spectroscopy. All analyses are performed...
2018
The Sample Support Problem for Permeability Assessment in Sandstone Reservoirs
Y. Anguy, R. Erlich, C. M. Prince, V. L. Riggert, and D. Bernard
AAPG Special Volumes
... sample size can be determined by measuring the scales of structural complexity using Fourier transforms of the image of the porous microstructure...
1994
ABSTRACT: THE APPLICATION OF FREQUENCY SPECTRAL ANALYSIS OF LOGGING CURVES ON SEDIMENTARY CYCLE STUDIES IN COAL-BEARING STRATA
Fengjie Li, Duoyun Wang
The Society for Organic Petrology (TSOP)
... cycles caused by climate changes. Key words: Logging curves; Milankovitch cycles; Fast fourier transform; Ordos basin; Yan’an Formation 114...
2006
Abstract: Infrared spectrum of an individual fossil pollen grain measured as an organic maturation index
T. Aizawa, T. Ohbuchi, Y. Ujiié
The Society for Organic Petrology (TSOP)
... Infrared spectra for individual fossil pollen grains were measured by means of Fourier transform infrared spectroscopy with infrared microscope (micro...
2008
ABSTRACT: Structural characteristics and molecular representations of bark liptobiolite of Permian from China
Ya’nan Guo, Yuegang Tang
The Society for Organic Petrology (TSOP)
... spectroscopy (NMR), high-resolution transmission electron microscopy (HRTEM) and Fourier transform infrared (FT-IR) spectroscopy were employed to analyze...
2012
ABSTRACT: Infrared Microspectroscopy: An Efficient Tool for Micro-Scale Characterization of Organic Matter
P. Landais and A. Rochdi
The Society for Organic Petrology (TSOP)
... analysis. Fourier transform infrared (FTIR) spectroscopy is a widely used technique in organic geochemistry which facilitates the functional analysis...
1990
Abstract: DMO and NMO as Applied in Seismic Data Processing
Jiunnyih Chen
Geological Society of Malaysia (GSM)
... by Fourier transform. offset continuation, single channel DMO ... etc. and the improvements of these techniques are widely recognized. But every technique...
1988
Abstract: Multiple and Noise Attenuation with Tau-P Seismic Data Processing
Leong Lap Sau, Ng Tong San
Geological Society of Malaysia (GSM)
... transfrom from the 2-D Fourier transform. Compared to conventional processing in the (x, t) plane, the T-p domain has several advantages. This study...
1990
ABSTRACT: Quantitative Paleobathymetry Using Oxygen Isotopes and Shape Changes in Benthic Foraminifera, by Anthony C. Gary, Douglas F. Williams, and Nancy Healy-Williams; #91038 (2010)
Search and Discovery.com
2010
ABSTRACT: Comparative Anatomy of Changes in Post-Jurassic Global Sea Level and Spreading Rates, by John D. Pigott, Michael N. Austin, and Larry A. Willis; #91030 (2010)
Search and Discovery.com
2010
ABSTRACT: Fast PC-Based Burial/Thermal Modeling, by J. Dye, P. B. Visscher, J. H. Fang, S. Johnson, A. M. J. Davis, and R. Tipping; #91022 (1989)
Search and Discovery.com
1989
ABSTRACT: Interaction of Marine and Fluvial Clastic Sedimentation, Central Italy, Tyrrhenian Coast, by S. Evangelista, W. E. Full, and P. Tortora; #91022 (1989)
Search and Discovery.com
1989
ABSTRACT: Biostratigraphic Application of Shape Analysis and EXTENDED CABFAC-FUZZY QMODEL to Sphaeroidinellopsis Lineage, by Anthony C. Gary; #91022 (1989)
Search and Discovery.com
1989
Sources of Shoaling in Charleston Harbor, Fourier Grain Shape Analysis: REPLY
Robert Ehrlich, P. Jeffrey Brown
Journal of Sedimentary Research (SEPM)
...Sources of Shoaling in Charleston Harbor, Fourier Grain Shape Analysis: REPLY Robert Ehrlich, P. Jeffrey Brown 1979 Vol. 49 No. 2. (June), COLQUHOUN...
1979