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The AAPG/Datapages Combined Publications Database
Showing 1,342 Results. Searched 195,549 documents.
ABSTRACT: Influence of maceral reactivity on hydrocarbon generation of coal and shale from Makum coal basin, India
Atul K. Varma, Sanki Biswas, Balram Tiwari
The Society for Organic Petrology (TSOP)
... + 24.33; Fig. 1c). Fourier Transform Infrared Spectrometry (FTIR) spectrum of coal samples shows the presence of long aliphatic chains (alicyclic CH3...
2018
Investigation of DMO Algorithms during Test-Line Processing: Some Recommendations
Ng Tong San, Mohd. Hashim Abas, Leong Lap Sau
Geological Society of Malaysia (GSM)
... in, and perhaps more "correct" velocity pick. DMO algorithms available sometime back in this region are essentially Fourier transform methods, usually...
1996
Abstract: Use of petrographic investigations in prediction of combustion behaviour of inertinite rich coal and char and flyash formation
A. Kumar Varma, M. Kumar, V. Kumar Saxena, A. Sarkar
The Society for Organic Petrology (TSOP)
... of highly porous, rounded and partially reacted fly ash particles. The FTIR (Fourier transform infra red) studies of unburnt coal indicate presence...
2008
ABSTRACT: Peculiar chemical properties of some Late Permian Chinese coals
Shaoqing Wang, Yuegang Tang
The Society for Organic Petrology (TSOP)
... structural characterization of barkinite, comparing to vitrinite, was studied by Fourier transform infrared spectroscopy (FT-IR) and carbon-13 nuclear magnetic...
2012
EXTENDED ABSTRACT: Raman Spectroscopy of Reflectance Suppression in Artificial Source Rock
Margaret Sanders, Aaron Jubb, Paul Hackley, Ken Peters, Andrew Pomerantz
The Society for Organic Petrology (TSOP)
... aromatization as proposed by Peters et al. (2018). Micro-Fourier transform infrared spectroscopy (micro-FTIR) analysis is currently in progress. We predict...
2021
Abstract: ATR-FTIR Characterization of Shales from Kubang Pasu Formation, Malaysia
Zaky Ahmad Riyadi, Eswaran Padmanabhan, Ibad Mahmoodi, Yang Wang Chuan, Teivardashni Gunasergaran
Geological Society of Malaysia (GSM)
... were collected from the basal unit of Kubang Pasu formation. The Fourier transform infrared spectroscopy (FTIR) and Ultraviolet-Visible Spectroscopy (UV...
2017
Abstract: Comparison of Micro-Techniques Used for Analyzing Oils in Sidewall Cores to Model Viscosity, API Gravity, and Sulfur Content, by J. M. Guthrie, C. C. Walters, and K. E. Peters; #90933 (1998).
Search and Discovery.com
1998
Seismic frequency control on carbonate seismic stratigraphy: A case study of the Kingdom Abo sequence, west Texas
Hongliu Zeng, Charles Kerans
AAPG Bulletin
... occur if the dominant frequency of the seismic data is not matched to the unit thicknesses that need to be resolved. Bracewell, R. N., 1999, The Fourier...
2003
Applications of Organic Petrography and Spectroscopy For Shale Petroleum Systems Analysis: Past, Present, and Future
Search and Discovery.com
N/A
Abstract: On Sampling Optimization Based on Mutual Coherency Criterion; #90224 (2015)
Mafijul Islam Bhuiyan
Search and Discovery.com
...). Our main goal is to reduce the mutual coherency between sampling scheme and sparsifying transform. However, the design of optimal receiver pattern...
2015
Early Miocene Cyclostratigraphy and Sea-Level Changes from the Pearl River Mouth Basin, South China Sea; #50463 (2011)
Shi-Feng Tian
Search and Discovery.com
... in a mixed carbonate and siliciclastic setting. A spectral analysis will be carried out in these wells using the Fourier transform algorithm approach...
2011
Deterministic and Statistical Wavelet Processing
Lee Lu
Southeast Asia Petroleum Exploration Society (SEAPEX)
... do is to find the effective wavelet, either by dividing the Fourier transform of x by the Fourier transform of r in frequency domain or by equivalent...
1980
The Effect of Hydrofluoric Acid on Quartz Shape--Fourier Grain Shape Analysis: METHOD PAPER
Douglas J. Schultz
Journal of Sedimentary Research (SEPM)
...The Effect of Hydrofluoric Acid on Quartz Shape--Fourier Grain Shape Analysis: METHOD PAPER Douglas J. Schultz 1980 Vol. 50 No. 2. (June), Fourier...
1980
The deblending processing of multi-well 3D DAS-VSP data in the Middle East
Fei Li, Gang Yu, Haibo Liu, Jiawen Song, Yanbin Zhang, Yuanzhong Chen, Tiankui Yin, Jianxin Han, Qingfeng Li
International Meeting for Applied Geoscience and Energy (IMAGE)
... sources data; Abba et al. (2008) obtained highquality separation results using POCS algorithm in Fourier transform domain; Lin et al. (2009) proposed...
2023
Molecular structure characterization of kerogen in contact metamorphic shales: Insights into the effect of graphitization on organic matter pores
Yuguang Hou, Rui Yu, Junjie Li, Zhenhong Chen, Cheng Wang, Xianglin Chen, Rui Yang, and Sheng He
AAPG Bulletin
... Raman microprobe, transmission electron microscopy, and Fourier transform infrared spectroscopy techniques. The OM pore structures of shale samples...
2024
Seismic Wave Attenuation in Gas Hydrate-Bearing Sediments from Vertical Seismic Profiling Data, Mallik, Northwest Territories, Canada
Gilles Bellefleur
Search and Discovery.com
... at a specific receiver using P ( z o , Z )* ( z o ) exp iZ'W ( z ,Z ) *( z o ) '*( z ) ˆ P( z, Z ) ˆ Where P ( z , Z ) is the Fourier transform of the VSP...
Unknown
Seismic Wave Attenuation in Gas Hydrate-Bearing Sediments from Vertical Seismic Profiling Data, Mallik, Northwest Territories, Canada
Gilles Bellefleur
Search and Discovery.com
... at a specific receiver using P ( z o , Z )* ( z o ) exp iZ'W ( z ,Z ) *( z o ) '*( z ) ˆ P( z, Z ) ˆ Where P ( z , Z ) is the Fourier transform of the VSP...
Unknown
AVO Modeling of Monochromatic Spherical Waves: Comparison to Band-Limited Waves; #41567 (2015)
Charles Ursenbach, Arnim Haase
Search and Discovery.com
... the reflection coefficient for a band-limited wavelet via an inverse Fourier transform, as has been carried out by Haase (2004). We have previously...
2015
Detection of Sedimentary Cyclicity and Stratigraphic Completeness by Wavelet Analysis: An Application to Late Albian Cyclostratigraphy of the Western Canada Sedimentary Basin
Andreas Prokoph , Frederik P. Agterberg
Journal of Sedimentary Research (SEPM)
... at high frequencies and wide windows at low frequencies (Fig. 2). In contrast, the Fourier transform uses a single analysis window for all frequencies...
1999
Abstract: Investigating the Low Frequency Content of Seismic Data with Impedance Inversion; #90187 (2014)
Heather J. E. Lloyd and Gary F. Margrave
Search and Discovery.com
... the low-frequency cut-off, , and is selected by the user. Inverse Fourier Transform the result in (7). Add the linear trend that was removed in (1...
2014
Compositional Fractionation of Petroleum Fluids During Migration and Production: A Bakken Case Study with Fourier Transform Ion Cyclotron Resonance (FT-ICR) Mass Spectrometry
Yishu Song, Eric Michael, Kristie McLin, Nicolaj Mahlstedt, Brian Horsfield, Stefanie Potz, Kai Mangelsdorf
Unconventional Resources Technology Conference (URTEC)
...Compositional Fractionation of Petroleum Fluids During Migration and Production: A Bakken Case Study with Fourier Transform Ion Cyclotron Resonance...
2022
A Comparison of Fourier and Fractal Techniques in the Analysis of Closed Forms
Stephen K. Kennedy, Wei-Hsiung Lin
Journal of Sedimentary Research (SEPM)
...A Comparison of Fourier and Fractal Techniques in the Analysis of Closed Forms Stephen K. Kennedy, Wei-Hsiung Lin 1992 Vol. 62 No. 5. (September...
1992
Spectral Decomposition: Extending the Limits of Seismic Resolution for Reservoir Delineation
Sunu H. Praptono, Bambang Murti, Dylan Mair
Indonesian Petroleum Association
... in the data. Methodology The spectral decomposition transforms the seismic data into the frequency domain via a DFT (Discrete Fourier Transform) or via a MEM...
2003
Abstract: Full-Waveform Inversion of Field Data in the Foothills: Results and Challenges with Long-Offset Seismic; #90172 (2014)
Andrew J. Brenders, R. Gerhard Pratt, Sylvestre Charles
Search and Discovery.com
..., where is the angular frequency and is a decay constant. The Fourier transform may then be replaced by (1) 2 AAPG...
2014
Abstract: A Faster, More Accurate Gaussian Simulation; #90172 (2014)
Colin Daly, Sandra Quental, Darcy Novak
Search and Discovery.com
... to about 36 minutes for the old GSLIB based algorithm for identical results. The unconditional simulation term uses a Fast Fourier Transform based...
2014