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The AAPG/Datapages Combined Publications Database

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

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AEM, Seismic and Power-lines: A hydrogeological case study in Peel, Western Australia

Andrew Pethick, Brett Harris, Olga Barron

Petroleum Exploration Society of Australia (PESA)

...โ€ determined for each low-moment EM data block via a Fourier transformation. This is an estimate of the amplitude spectral density at 50 Hz. A major...

2019

Risks of Microseismic Fracture Mapping Mis-interpretation: Source-Dependent Sensitivity Induced by Surface Arrays Observational Bias

Pierre-Francois Roux

Unconventional Resources Technology Conference (URTEC)

... is estimated by taking the maximum of the inverse Fourier transform of its spectral expression [Aki and Richards, 2002]: โ„ฑ๐‘€0 ๐‘ ฬ‡ ๐ด = maxโก| โก | 4๐œ‹๐œŒ๐‘‰ ...

2017

Integrated Multi-Scale Reservoir Characterization: Wolfcamp Formation ย… Midland Basin

Joel Walls, Mark Ver Hoeve, Anyela Morcote, Michael Foster

Unconventional Resources Technology Conference (URTEC)

... and used for digital rock analysis. Mineral composition was determined using Fourier transform infrared spectroscopy (FTIR). Clays, silicates...

2017

Nonlinear broadband seismic inversion for fluid mobility

Xuan Zheng, Zhaoyun Zong

International Meeting for Applied Geoscience and Energy (IMAGE)

..., respectively. Cโ€ฒ and E are the attenuation operator and Fourier operator of the complex-frequency-domain transform, respectively. And Z RI can...

2024

Noise Attenuation in Common Receiver Gather to Enhance S/N Ratio in Seismic Data

Dara Felisia A, Triswan Mardani Ade Surya, R.B.Fauzan Irshadibima, Firman Syaifuddin

Indonesian Petroleum Association

... to allow a different range of frequency. The application of frequency-filtering requires the data in frequency domain, which is achieved using the Fourier...

2017

Comprehensive Fracture Evaluation Using Wireline Borehole Imager and Array Acoustic Tools

Cahyo Nugroho, Gunawan Sucahyo, Adriaan Bal, Pipin Ariyanto, Wilfred Samosir, Edison Nadeak

Indonesian Petroleum Association

... clustering wavelength can be determined using signal processing techniques (e.g. a Fourier transform). However, it must be emphasized that with respect...

2018

Using Stage Level Microseismic Analysis to Gain Insight Into Fracture Efficiency and Completion Effectiveness

Iris Haihong Wang, Ryan Fairfield, James Courtier, Danny Gray, Shawn Lee

Unconventional Resources Technology Conference (URTEC)

... itself. The algorithm uses a non-uniform Fourier transform to approximate the actual empirical characteristic function. Figure 4 shows the algorithm...

2018

NMR Signature and Quantification of Bitumen in Unconventional Source Rocks

Stacey Althaus, JinHong Chen, David Jacobi, Joshua Brothers

Unconventional Resources Technology Conference (URTEC)

..., and a recycle delay of 0.5 s. FTIR measurements. Kerogen samples were prepared for transmission micro Fourier transform infrared spectroscopy (ยตFTIR...

2019

Three-Dimensional Depth Imaging of Seismic Data, with Examples from the Overthrust Belt of Southwestern Wyoming

Alvin K. Benson

Wyoming Geological Association

.... 34-56. Stolt, R.H., 1978, Migration by Fourier transform: Geophysics, v. 43, p. 23-48. Stolt, R.H., and A.K. Benson, 1986, Seismic migration: Theory...

1995

Low-Frequency De-Ghosting Method to Enhance Basement Layer Continuity Image in Foxtrot South East Area, North West Java Sea

Ryan Bobby Andika, Hudzaifah, Deny Martian, Nurudin Mahmud, Sri Sadono

Indonesian Petroleum Association

.... ๐‘ˆ ๐ท๐บ (๐‘ฅ, ๐‘ฆ, ๐‘ค, ๐‘ง) = ๐น(๐œ•๐‘ฅ, ๐œ•๐‘ฆ, ๐‘˜, ๐‘ง)๐‘ˆ(๐‘ฅ, ๐‘ฆ, ๐‘ค, ๐‘ง) Because of, in principle, the above filter equation being the 2D inverse Fourier transform of the ghost signal...

2019

Unlocking Value from Vintage Seismic Processing - Pre-stack Conditioning and Inversion in the Eagle Ford Shale

Andrew Munoz, Bill Shea

Unconventional Resources Technology Conference (URTEC)

.... As seen in Figure 2, these filters remove a significant amount of noise. The radon transform changes the offset gather into the rayparameter domain...

2020

Evaluation of Huff-n-Puff in Shale Using Experiments and Molecular Simulation

Sidi Mamoudou, Felipe Perez, Ali Tinni, Son Dang, Carl H. Sondergeld, Chandra S. Rai, Deepak Devegowda

Unconventional Resources Technology Conference (URTEC)

... a foot apart. TOC was measured using LECO instrument and the mineralogy was based on transmission Fourier transform infrared spectroscopy (FTIR...

2020

First Implementation of Hybrid Fiber Optic Cable in Indonesia - Carbon Reduction through Leading-Edge Technology

Marsha Sakina, Dinda Larasati Rahmani, Fajar Tri Prasetia, Cikko Majesta, Francesco Miranda

Indonesian Petroleum Association

...). The MDF is part of the F-K dip filter, which uses a 2D Fourier transform to remove certain types of correlated noise recorded with different dips...

2023

Identification of Hydrocarbon Seeps by Hyperspectral Remote Sensing

W. S. Duncan, Ronald W. Capps

GCAGS Transactions

..., Summitville area, southwestern Colorado: JPL Publication 97-21 v.2, p. 85-96. Mosley, R. M., R. R. Williams, 1994, Fourier transform near infrared...

2000

Experimental Study of Hydrocarbon Vaporization for EOR Applications in Shales

Judah Odiachi, Felipe Cruz, Ali Tinni

Unconventional Resources Technology Conference (URTEC)

... References Ballard, Bryce D. 2007. Quantitative Mineralogy of Reservoir Rocks Using Fourier Transform Infrared Spectroscopy. Presented at the SPE Annual...

2021

Unconventional Reservoir Flow Assessment Using Spectral Acoustics and Numerical Temperature Modelling

Maxim Volkov, Vener Nagimov, Samuel Avilez, Dmitriy Lazutkin, Mikhail Khachaturyan, Artem Prodan

Unconventional Resources Technology Conference (URTEC)

..., the data is collected from 8 different points in one station. The acoustic waveforms are transformed into the spectral data using Fast Fourier Transform...

2022

Chapter 9: Microstructure and Anisotropy in Gas Shales

Carl H. Sondergeld, Chandra S. Rai, Mark E. Curtis

AAPG Special Volumes

... averaging measurements such as x-ray diffraction, Fourier Transform Infrared Spectroscopy (FTIR), Nuclear Magnetic Resonance (NMR), capillary pressure...

2013

Experimental Observation of Diffusion as the Main Drive Mechanism in Unconventional Shales

Son Dang, Sidi Mamoudou, Chandra Rai, Carl Sondergeld

Unconventional Resources Technology Conference (URTEC)

... liquidfilled porosity, (2) TOC measured with a LECOยฎ instrument, and (3) mineralogy is measured by transmission Fourier Transform Infrared spectroscopy...

2023

Effects of CO2 Exposure on Unconventional Reservoir Rock Microstructure

Mark Curtis, Sidi Mamoudou, Felipe Cruz, Son T. Dang, Chandra Rai, Deepak Devegowda

Unconventional Resources Technology Conference (URTEC)

.... Mineralogical characterization was performed by Fourier Transform Infrared (FTIR) spectroscopy. In addition, Youngโ€™s modulus of each sample was determined...

2023

Determination of Geomechanical Parameters from Geophysical Logs: Section IV. Exploration Methods

M. B. Dusseault

AAPG Special Volumes

.... Other measures of potential interest are: peak amplitude ratios of P- and S-waves; signal spectral density signatures (Fourier transform analysis...

1987

Orbital Forcing of Organic-Rich Deposits Formation: Record of the Coniacian-Santonian OAE3 (La Luna Formation, San Miguel River Section, Venezuela); #90017 (2003)

Olga Rey, Maria Antonieta Lorente, Toni (JA) Simo

Search and Discovery.com

... and total organic carbon content. The spectral method applied was the Fast Fourier Transform (FFT) using the algorithms of Pardo-Igรบsquiza et al.(1994...

2003

Abstract: An Initial Evaluation of Some Biogeochemical-engineering Routes to Carbon Management; #90172 (2014)

Steve Larter, Ian Gates, Jennifer Adams, Ian Head

Search and Discovery.com

... degradation of seeped oil. Recent advances in Fourier Transform Mass Spectrometry (FTMS) suggest that functionalized polycyclic aromatic species may dominate...

2014

Abstract: Robust Singular Spectrum Analysis for Erratic Noise Attenuation; #90187 (2014)

Ke Chen and Mauricio D. Sacchi

Search and Discovery.com

... in a leastin f -x domain after the Fourier transform. This results in the frequency domain spatial squares sense. The latter leads to a suboptimal...

2014

Abstract: Velocity Dispersion in Field Seismic Data: Impact, Detection and Application; #90211 (2015)

Langqiu Sun

Search and Discovery.com

..., separately) with a narrow window moving along this trace, apply Fourier transform to each part of the waveform, pick the time points with maximum...

2015

Identification and Prediction of the High Heterogeneous Channel Sand in Southern Turgay Basin; #10515 (2013)

Yueying Hong, Hongmei Wang, Wenyuan Tian, and Aling Mo

Search and Discovery.com

... from time domain into frequency domain to obtain amplitude spectrum and phase spectrum-tuning cube through short time window Discrete Fourier Transform...

2013

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