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The AAPG/Datapages Combined Publications Database
Showing 18,799 Results. Searched 200,357 documents.
Extracting surface wave dispersion spectra directly from the high-speed train induced vibration
Shengpei Xia, Xinyue Pan, Xiaokai Wang, Wenchao Chen, Jingrui Luo, Haixia Zhao, Wenjing Yan
International Meeting for Applied Geoscience and Energy (IMAGE)
... the missing frequency bands in a HST event, resulting in a wideband amplitude spectrum. Figure 4: The amplitude spectra of a synthetic HST event...
2024
Microseismic Data Analysis Using Matlab 2010 for the Determination of Hydrocarbon Presence in the Field LCY Ombilin Basin
Lucy W. Sari, Moh. Sarkowi, Suharno, Rahmat C. Wibowo
Indonesian Petroleum Association
... hydrocarbons. Above the oil reservoir, the natural earth noise spectrum increased sharply at a frequency of 2 - 6 Hz. This phenomenon has been confirmed...
2013
Study on Characteristic Variability of Weak Signal in High Density Seismic Acquisition; #41351 (2014)
Wujin Chen and Anchu Wu
Search and Discovery.com
... dominant frequency is 50Hz. It shows that near surface absorption degrades the resolution to interfaces. Frequency analysis The amplitude spectrum...
2014
Advances in Vibroseis Technology Enhance Low Frequency Recording and Provide Significant Operational Benefits
Search and Discovery.com
N/A
ABSTRACT: Microseismic Event Spectrum Control and Strain Energy Release in Stressed Rocks, by Rozanov, Alexander O.; #90141 (2012)
Search and Discovery.com
2012
Application of Spectral Decomposition and RGB Blending for Mapping the Distribution of Ubadari Sandstone in Kasuri Block
Leonard Lisapaly, Anne Queentina Tyas Primasty
Indonesian Petroleum Association
... amplitude spectrum of this kind of event will have a notch frequency, and the notch frequency then represents the reservoir with temporal thickness equals...
2018
Some Seismic Instantaneous Bandwidth Attribute Applications; #42515 (2020)
Satinder Chopra, Kurt J. Marfurt
Search and Discovery.com
... decreases the higher frequency components of the spectrum. For more ordered and less commonly encountered heterogeneities such as sabkhas, coal...
2020
Fractal Structure of Stylolites
Carl N. Drummond, Damon N. Sexton
Journal of Sedimentary Research (SEPM)
... the spectrum of a path of End_Page 8-------------------------- a Brownian motion is found to decrease as a function of frequency. That is, Brownian...
1998
Abstract: Quantitative Estimation of Oil-Water Contact in a Jurassic Clastic Reservoir Using Elastic Wave Propagation, by Zhao Zhang and Yuefeng Sun; #90182 (2013)
Search and Discovery.com
2013
Seismic Inversion Resolution Enhancement With (3S) Spectral Blueing, Spectral Balancing, and Stochastic Inversion on Fluvio Deltaic Environment
Aji Darma Maulana, Nine Safira, Ongki Ari Prayoga, Egie Wijaksono, Alit Ascaria
Indonesian Petroleum Association
... of the amplitude spectrum to resemble a plateau shape. This approach's base is bandpassing in a few frequency ranges combined with each frequency's amplitude...
2022
ABSTRACT: Hydrocarbon Detection of Fractured Carbonate Reservoir, by Qinhua, Sun; Jianxin, Liu; Huquan, Zhang ; Xiaomei, Liu; #90135 (2011)
Search and Discovery.com
2011
Passive Seismic Approach to Minimize Drilling Risk
Search and Discovery.com
N/A
Abstract: Inversion Approach to Calculate Instantaneous Frequency; #90174 (2014)
Jiajun Han and Mirko van der Baan
Search and Discovery.com
... signals with different frequency distributions. Figure 2: Instantaneous spectrum obtained using the inversion approach after EMD. Both frequency...
2014
Low-frequency signal-guided seismic amplitude preservation optimization and its application in Paleogene reservoir prestack inversion
Xie Xiang, Zhang Zhongqiao, Qiao Zhu, Wang Jinghan
International Meeting for Applied Geoscience and Energy (IMAGE)
...-frequency seismic data with favorable relative amplitude preservation is firstly selected with frequency band determined through angle-divided spectrum...
2022
Abstract: Enhancing Stratigraphic Features by Spectral Decomposition, Case Studies from Saudi Arabia; #90319 (2018)
Schuman Wu
Search and Discovery.com
...-amplitude data contain ample geological information, but the amplitude data is usually skewed towards the dominant frequency of the seismic source wavelet...
2018
Abstracts: A New f-p Domain Weighting Function in Minimum Weighted Norm Interpolation of Seismic Data; #90173 (2015)
Zhengsheng Yao, Mike Galbraith, and Randy Kolesar
Search and Discovery.com
... two neighbouring traces), the spectrum in the f-k domain before interpolation is aliased due to the reduced effective Nyquist interval, and therefore...
2015
Abstract: Variable-factor S-transform for Time-frequency Decomposition, Deconvolution, and Noise Attenuation; #90172 (2014)
Todor I. Todorov, Gary F. Margrave
Search and Discovery.com
...(t) is the analysis window, usually Gaussian, and G(τ,f) is the complex Gabor spectrum. A fundamental property of the time-frequency decomposition...
2014
Abstract: Data Interpolation by Angular Weighted MWNI; #90187 (2014)
Mark Ng and Dan Negut
Search and Discovery.com
... weights are derived from an angular search of the input amplitude spectrum in the frequency-wavenumber domain before the inversion begins. Introduction...
2014
Abstract: Frequency-Based Facies Recognition Using Unsupervised Machine Learning; #91204 (2023)
Thamer Almahamidh, Sihai Zhang
Search and Discovery.com
... data and target surface, displaying the general spectrum to determine the frequency range for spectral decomposition, and defining the extraction window...
2023
Seismic Attenuation Analysis for Reservoir Description
Search and Discovery.com
... and maybe reliable way is to use spectral decomposition, i.e. to do time-frequency analysis on each trace, and from instantaneous amplitude spectrum...
2013
Fracture Characterization Based on Attenuation Estimation From Seismic Reflection Data Using Well-Log-Based Localized Spectral Correction
Fangyu Li, Tao Zhao, Tengfei Lin, Kurt J. Marfurt
Unconventional Resources Technology Conference (URTEC)
... is a local spectrum correction. Then, we can use the Q estimation methods, such as spectral ratio and central frequency shift methods, to get its...
2015
Thin Bed Stratigraphy from Complex Trace Attributes: ABSTRACT
J. D. Robertson, H. H. Nogami
AAPG Bulletin
... the wavelet's amplitude spectrum. Peak instantaneous frequency thus is a physical meaningful measure of the spectral content of a zero-phase Ricker...
1982
Abstract: Frequency-dependent Elastic Moduli and Attenuation of Sandstone and Carbonate Rocks; #91204 (2023)
Andika Perbawa, Thomas Finkbeiner, Salma Alsinan, Juan Carlos Santamarina
Search and Discovery.com
...Abstract: Frequency-dependent Elastic Moduli and Attenuation of Sandstone and Carbonate Rocks; #91204 (2023) Andika Perbawa, Thomas Finkbeiner, Salma...
2023
Enhancing conventional VSP data to broadband and its quantitative improvement on lookahead inversion
Hussain Almarzooq
International Meeting for Applied Geoscience and Energy (IMAGE)
... that it is above the noise floor and is possibly recoverable. On the other end of the frequency spectrum, attempts have also been made to recover it via...
2022
Noise Identification in Passive Seismic Hydrocarbon Reservoir Microtremor Data
Muhammad Fadhillah Akbar, Afnimar, Andri Dian Nugraha, Dimmas Ramadhan, Guntur Mulyanagara
Indonesian Petroleum Association
..., the reservoir redefines the wave through occuring fluid oscillation at porous scale (Frehner et. al., 2007) and amplifies the frequency spectrum...
2013