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The AAPG/Datapages Combined Publications Database

Showing 1,479 Results. Searched 200,626 documents.

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Boley Agate — Chert Breccia Clasts in the Vamoosa Formation

Neil H. Suneson, William G. Lyon, David Goza

Oklahoma City Geological Society

....; Clouse, J. A., and Isaacs, C. M., 1995, Application of Fourier transform infrared spectroscopy to silica diagenesis: the opal-A to opal-CT transformation...

2013

Accurate simulations of pure P-waves in attenuating transversely isotropic media

Qiang Mao, Jianping Huang, Xinru Mu

International Meeting for Applied Geoscience and Energy (IMAGE)

... Fourier transform of p . Based on the low-rank decomposition (Fomel et al., 2013), we have M N m 1 n 1 1 W11  x, k   W1  x, k m   amnW2  x n...

2023

Identification of Microseismic Attributes Through Spectral Analysis

Michael J. Nava, James W. Rector, Zhishuai Zhang

Unconventional Resources Technology Conference (URTEC)

... calculated. Since there are eleven geophones in the array, a Fourier Transform was performed on all traces, which yielded eleven spectral responses...

2015

Kerogen Density Revisited„Lessons From the Duvernay Shale

Artur Stankiewicz, Natalya Ionkina, Bill Motherwell, Barry Bennett, Oniel Wint, Maria Mastalerz

Unconventional Resources Technology Conference (URTEC)

... and the organic matter characteristics. Fourier Transform InfraRed Spectroscopy. Some density fractions were also analyzed using the potassium bromide (KBr...

2015

New method for monitoring steam injection for Enhanced Oil Recovery (EOR) and for finding sources of geothermal heat

Gordon Stove, G. Colin Stove, Michael Robinson

Petroleum Exploration Society of Australia (PESA)

...: the energy log is produced by sub-sampling the P-Scan image data in equal time intervals. A Fourier Transform is conducted on each sub-image, whereby...

2018

Quantifying Organic Porosity and Predicting Estimated Ultimate Recovery (EUR) in the Eagle Ford Formation

Rich McLean, Carly Miller, Bryan Guzman, Joel Walls

Unconventional Resources Technology Conference (URTEC)

.... The amount of organic matter (confirmed with FTIR (Fourier Transform Infrared Spectroscopy)), is used to calculate the apparent transformation ratio...

2017

A new high-resolution seismic wavelet definition and vibroseis sweep signal design

Zhenbo Nie, Huazhong Wang, Shen Sheng

International Meeting for Applied Geoscience and Energy (IMAGE)

... and vibroseis sweep signal design (a) a Fourier transform pair. Taking the Fourier transform of both sides of formula (2) yields: The width ratio of main lobe...

2024

NMR Considerations in Shales at Elevated Temperature

Aditya Chakravarty, Ali Tinni, Chandra S. Rai, Carl H. Sondergeld

Unconventional Resources Technology Conference (URTEC)

...°C for four days. The Woodford shale samples were preserved state cores. Mineralogy was determined using transmission Fourier transform infrared...

2018

Fracturing Fluids Effect on Mechanical Properties in Shales

Juan C Acosta, Son Dang, Mark Curtis, Carl Sondergeld, Chandra Rai

Unconventional Resources Technology Conference (URTEC)

... (15 wt.%) for carbonate removal and subsequent LECO TOC measurement. From the same crushed rock, transmission Fourier Transform Infrared Spectroscopy...

2020

Impact of Capillary Pressure on Total Porosity in Unconventional Shales

Felipe Cruz, Ali Tinni, Steven Brackeen, Carl Sondergeld, Chandra Rai

Unconventional Resources Technology Conference (URTEC)

... was conducted with 7 shale samples from an oil producing reservoir of the Permian Basin. Mineralogy was determined by transmission Fourier transform infrared...

2020

Measurement of Effective Tortuosity in Unconventional Tight Rock using Nuclear Magnetic Resonance

Son Dang, Sanchay Mukherjee, Carl Sondergeld, Chandra Rai

Unconventional Resources Technology Conference (URTEC)

... Fourier Transform Infrared transmission spectroscopy (FTIR)-mineralogy (Sondergeld and Rai, 1993; Ballard, 2007), LECO® Total Organic Carbon (TOC), total...

2021

Effects of H2 Exposure on the Microstructure of Depleted Hydrocarbon Reservoirs

Mark Curtis, Sidi Mamoudou, Son Dang, Chandra Rai, Deepak Devegowda

Unconventional Resources Technology Conference (URTEC)

... characterization was performed by Fourier Transform Infrared (FTIR) spectroscopy. SEM imaging was performed to characterize the microstructure and energy...

2024

Characterizing the Tops of Devonian Units in the Challenging Sub-Andean Region of Bolivia

Paola Delgado, Gerardo Villacorta, Andrea Di Daniel, Karim Bondabou

Unconventional Resources Technology Conference (URTEC)

... Diffuse reflectance infrared Fourier transform spectroscopy technique DRIFTS. • Geochemical ratio and Gamma Ray via X-Ray Fluorescence (XRF...

2024

Investigating Distributed Acoustic Sensing Performance for Hydraulic Fracturing Monitoring Under Controlled Conditions

Dmitry Kuznetsov, Roman Korkin, Maxim Chertov, Joel Le Calvez

Unconventional Resources Technology Conference (URTEC)

... be obtained using a 2d Fourier transform. For the pressure, in both the coordinate and frequency domains, we have: ρv 2 δP (ω, x) = d ∞ −∞ Sω dk ikx e . 2...

2025

Making Interpretable Images from Image Logs

Birger Hansen, Janusz Buczak

AAPG Special Volumes

..., it suffices to know the generator frequency and the rotation speed of the transducer; then a Fourier transform band-stop filter applied to the image...

2010

A Preliminary Study of the Relationship Between Test Morphology and Bathymetry in Recent Bolivina Albatrossi Cushman, Northwestern Gulf of Mexico

Anthony C. Gary

GCAGS Transactions

... Anthony C. Gary 1985 Vol. 35 (1985), An automated video digitizer and closed-form Fourier series analysis are used in this study to quantify benthic...

1985

Click to view abstract in PDF format

Search and Discovery.com

N/A

Subsurface temperature from seismic reflections: Application to the post-breakup sequence offshore Namibia

Arka Dyuti Sarkar and Mads Huuse

AAPG Bulletin

... to derive thermal conductivity through an empirical transform. This empirical relationship relating acoustic velocity and thermal conductivity...

2023

Robust localized adaptive waveform inversion: A new regularization for Gabor deconvolution

Peng Yong, Romain Brossier, Ludovic Mtivier

International Meeting for Applied Geoscience and Energy (IMAGE)

... time-domain form w(t, τ) through −1 w(t, τ) = Fτ [w(t, ω)] , ˆ (4) −1 Fτ where denotes the inverse Fourier transform for the variable τ...

2022

Exploration potential for stratigraphic traps in Field X, Malay Basin

Muhammad Hazmi Abdul Malik, Lo Shyh Zung, Abdul Ghani Md Rafek

Geological Society of Malaysia (GSM)

... using short time fourier transform (STFT) and S-transform. STFT display a better time window resolution meanwhile S-transform is good in frequency...

2018

Exploring the Thin Talangakar Formation Sandstone Using Integrated Seismic Multi-Attribute Analysis and Spectral Decomposition in Kuang Area, South Sumatra Basin, #10900 (2016).

Noor Cahyo Wibowo

Search and Discovery.com

...) and Discrete Fourier Transform (DFT). Given that each TAF member has a thickness analysis window of less than 30 ms, the DFT algorithm does not display...

2016

Computer Mapping: A Review of What is Available and What is Useful for Exploration Purposes

Nigel M. Waters

CSPG Bulletin

... Fourier transform of a matrix of data. The MAPCAT system was replaced by the FELIX package which, in turn, was superseded by TERRAPLOT which has...

1981

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

Integration of Large-Area SEM Imaging and Automated Mineralogy-Petrography Data for Justified Decision on Nano-Scale Pore-Space Characterization Sites, as a Part of Multiscale Digital Rock Modeling Workflow

Andrey Kazak, Svyatoslav Chugunov, Victor Nachev, Mikhail Spasennykh, Anatolii Chashkov, Eugenij Pichkur, Mikhail Presniakov, Alexander Vasiliev

Unconventional Resources Technology Conference (URTEC)

... data were processed with FEI PerGeos software. Original slices were filtered using Fast Fourier Transform to remove periodical artifacts in vertical...

2017

Tubular Tidalites: A Biogenic Sedimentary Structure Indicative of Tidally Influenced Sedimentation

Murray K. Gingras, John-Paul Zonneveld

Journal of Sedimentary Research (SEPM)

..., and using Fast Fourier Transform analysis. Considering the morphology of tubular tidalites presented, the parameters that promote the occurrence...

2015

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