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The AAPG/Datapages Combined Publications Database

Showing 1,479 Results. Searched 200,619 documents.

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Spherical-Wave Computational AVO Modelling in Elastic and Anelastic Isotropic Two-Layer Media; #41564 (2015)

Arnim B. Haase, Charles P. Ursenbach

Search and Discovery.com

.... They are repeated for all frequency points desired in the output bandwidth, and then the time domain response is found by inverse Fourier transform...

2015

Enhancing Spectral Decomposition to Delineates Subtle Channels … A Case Study from Offshore Nile Delta; #42180 (2018)

Islam A. Mohamed, Ahmed S. Abdel-Rahman, Amr E. Khalafalah, Abdul-Rahman Ali Mohamed

Search and Discovery.com

..., and/or hydrocarbons. • Two methods were tested: Fast Fourier Transform (FFT) and Continuous Wavelet Transform (CWT). • The frequency analysis over Sequoia field...

2018

ABSTRACT: Composition and structure of sulfur compounds in extracts of Chinese high organic sulfur coals

Yuegang Tang, Yewei Sun, Xiaoshuai Wang, Quan Shi, Hongxing Ni, Lulu Yan, Xiaolong Li, Xueping Pang

The Society for Organic Petrology (TSOP)

... of Chinese high organic sulfur coals at different ranks were analyzed through positive-ion electrospray ionization Fourier transform ion cyclotron...

2018

ABSTRACT: Importance of the Reacting Medium in Artificial Maturation of a Coal by Confined Pyrolysis

L. Mansuy and P. Landais

The Society for Organic Petrology (TSOP)

...-gas chromatography-mass spectrometry and Fourier transform infrared microspectroscopy. Results and discussion The results showed that the modification...

1996

Clay Mineralogy of Shale Gas Reservoirs through Integrating Infrared Spectroscopy and X-Ray Diffraction

Hanieh Jafary Dargahi, Reza Rezaee, Bobby Pejcic

Unconventional Resources Technology Conference (URTEC)

... of Permo-Triassic shale reservoir samples from the Perth Basin using Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD...

2013

A Journey to the Centre of the Earth

Sven Philit, Sebastien Lacaze, Benjamin Durot, Jake Marson

GEO ExPro Magazine

... decomposition in Short Time Fourier Transform and three target-representative frequencies; the RGB blending of the three frequencies mapped on a dense...

2020

ABSTRACT: SPECTROSCOPIC AND MICROSCOPIC CHARACTERIZATION OF CARBONACEOUS MATERIAL IN ARCHAEAN CHERTS, PILBARA CRATON, WESTERN AUSTRALIA

Craig P. Marshall, Abigail C. Allwood, Malcolm R. Walter, Martin J. Van Kranendonk, Roger E. Summons

The Society for Organic Petrology (TSOP)

.... Characterization of the carbonaceous material was undertaken using laser Raman spectroscopy, Fourier transform infrared (FTIR) spectroscopy, solid-state 13C...

2004

ABSTRACT: Preliminary results from a new approach to test the role of water in petroleum generation

Paul Hackley, Patrick Smith, Palma Jarboe, Aaron Jubb, Justin Birdwell, Javin Hatcherian, Brett Valentine

The Society for Organic Petrology (TSOP)

... and reflectance), spectroscopic (micro-Raman, micro-Fourier transform and electron energy loss) and transmission electron microscopy to quantify differences...

2017

EXTENDED ABSTRACT: Ombrotrophic peatlands as atmospheric microplastic archives

O. Hagelskjær, G. Le Roux, J. Sonke

The Society for Organic Petrology (TSOP)

... particles. Fourier-transform infrared (FTIR) and Raman spectroscopy are recognized as two of the best non-destructive methods of polymer identification...

2021

Abstract: Automated Scanning of Fine-scale Geological, Petrophysical and Geomechanical Rock Properties and Its Application in Reservoir Characterization

Ramil S. Ahmadov, Greg N. Boitnott

Houston Geological Society Bulletin

... information, a geomechanical probe named the Impulse Hammer, and an FTIR (Fourier Transform Infrared Spectroscopy) probe to provide mineralogical...

2019

Textural and Diagenetic Controlson Sandstone Permeability

Christopher M. Prince

GCAGS Transactions

... a better relationship with permeability. End_Page 43------------------------ 2-D Fourier Analysis A 2-D Fourier transform is used to decompose images...

1999

Abstract: Stabilizing Seismic Absorption Compensation; #90171 (2013)

Changjun Zhang

Search and Discovery.com

... resolution discrete Fourier transform: IEEE Transactions on Signal Processing, 46, 31–38. Tarantola, A., 1987, Inverse problem theory. Methods for data...

2013

Abstracts: Footprint Removal with Co-ordinate Rotation; #90173 (2015)

Mark Ng and Ye Zheng

Search and Discovery.com

... of the fact that when a 2D spatial Fourier transform is applied to a time slice section with a footprint pattern that is aligned parallel to any binning co...

2015

Methodology for Enhancing and Evaluating Geologic Effects of Time Series Models: A Case of Ground Response in Santa Clara Valley, California, #41097 (2012)

Olusola Samuel-Ojo, Lorne Olfman, Linda A. Reinen, Arjuna Flenner, David D. Oglesby, Gareth J. Funning

Search and Discovery.com

... Fourier Transform algorithm for Averaging, Laplacian and Laplacian of Gaussian (LoG) filter. Filtering is a procedure that visits each element...

2012

Evidence for Hydrocarbon Generation from NSOs: Implication for Modeling of Oil and Gas Generation in Basins; #120128 (2013)

Patrick G. Hatcher, Francoise Behar, Albert Kamga, and Elodie Salmon

Search and Discovery.com

... ultrahigh resolution mass spectrometric technique involving electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry (ESI-FTICR-MS...

2013

Optimizing Shale Reservoir Characterization with Spectroscopy Evaluation While Drilling, #42026 (2017).

Zach Crosby, Pukar Mainali, Camilo Mejia, Cory Langford

Search and Discovery.com

... samples with Pyrolysis, Fourier Transform Infrared Spectroscopy (FTIR), X-ray Flourescence (XRF), X-ray diffraction (XRD). These vertical well data...

2017

Gas Hydrates Exploration Using Continuous Wavelet Transform Based on Spectral Decomposition

Hafidz Dezulfakar, Muhazzib, Yulia Nur Fajrina

Indonesian Petroleum Association

... s may be written as: 1 , √ Where Ψ* is the complex conjugation of the Fourier transform of the wavelet function. The length of the wavelet has...

2016

A New Insight of Hydrocarbon Potential in Stratigraphic Trap in the Keutapang Formation, North Sumatra Basin

Argya Hastubrata Basundara, Andi Mardianza, Humbang Purba, Ricky Andrian Tampubolon, Shidqi Anugrah Diria, Dedi Retno Haryanto, Herman Darman, Junita Trivanty

Indonesian Petroleum Association

... that the signal is multiplied with a function, wavelet, similar to the window function in the Discrete Fourier Transform (DFT), and the transform...

2018

From 2D to 4D Wheeler Diagrams; #50774 (2012)

Farrukh Qayyum, Paul de Groot, Nanne Hemstra

Search and Discovery.com

... decomposition attributes in a sliding window that slides relative to the HorizonCube (chronostratigraphic) event. For example in a Fourier Transform...

2012

Raman Spectroscopy Based Maturity Profiling of the Vaca Muerta Formation, Neuquén Basin, Argentina

Alberto Ortiz, Bastian Sauerer, Jean-Paul Lafournère, Pablo Saldungaray, Wael Abdallah

Unconventional Resources Technology Conference (URTEC)

... Infrared Fourier Transform Spectroscopy) or results derived from the kerogen properties. This case study in the Vaca Muerta shows a good correlation...

2019

Fourier Grain Shape Analysis as a Tool for Indicating Batch Recoveries of Bitumen from Athabasca Tar Sands: ABSTRACT

Marian McNally Smith, Robert Ehrlich, Arvid Hardin

AAPG Bulletin

...Fourier Grain Shape Analysis as a Tool for Indicating Batch Recoveries of Bitumen from Athabasca Tar Sands: ABSTRACT Marian McNally Smith, Robert...

1983

Climatic Forcing of Cyclic Carbonate Sedimentation During the Last 5.4 Million Years Along the West Florida Continental Margin

Steven R. Roof , Henry T. Mullins, Steven Gartner, T. C. Huang, Ed Joyce, John Prutzman, Leonard Tjalsma

Journal of Sedimentary Research (SEPM)

... of the core. End_Page 1075----------------------- density estimates using a discrete Fourier transform, and finally smoothing the raw power spectrum...

1991

Spectrum Extrapolation to Increase Resolution: ABSTRACT

D. G. Stone

AAPG Bulletin

... except in the framework of Wiener filtering. An alternate method is possible using Fourier theorems to extrapolate the spectrum to higher frequencies...

1973

Interactive Gridding: ABSTRACT

James A. Downing

AAPG Bulletin

... derived from gridded surface models. Processing and analysis techniques such as surface filtering, trend analysis, Fourier transforms, and simple...

1982

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