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The AAPG/Datapages Combined Publications Database
Showing 1,479 Results. Searched 200,626 documents.
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]: โฑ๐0 ๐ ฬ ๐ด = maxโก| โก | 4๐๐๐ ...
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. Cโฒ 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 ๐ท๐บ (๐ฅ, ๐ฆ, ๐ค, ๐ง) = ๐น(๐๐ฅ, ๐๐ฆ, ๐, ๐ง)๐(๐ฅ, ๐ฆ, ๐ค, ๐ง) 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, Youngโs 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