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Showing 216 Results. Searched 200,357 documents.
Abstracts: Blind L1-norm Multichannel Deconvolution for Seismic Source Function Estimation; #90173 (2015)
Jaime Meléndez Martínez
Search and Discovery.com
... is the average autocorrelation matrix of the reflectivities, and is the average cross-correlation vector of the traces with the reflectivities. Estimation...
2015
Abstracts: Akaike Information Criterion Applied to Detecting First Arrival Times on Microseismic Data; #90173 (2015)
Andy St-Onge
Search and Discovery.com
..., variance and autocorrelation over the time of the investigation. The first series is random noise and the second series records an energy motion over...
2015
Floodplain topography and avulsion pathfinding control stratigraphic architecture in a numerical model of a fluvial fan
Caitlin Sifuentes, Harrison K. Martin, Kyle M. Straub, Elizabeth A. Hajek, Douglas A. Edmonds
Journal of Sedimentary Research (SEPM)
... time is inherited from previous timesteps. The autocorrelation function assesses correlation over progressively longer shifts; for example, a white...
2025
Data Analysis and Model Development
Alan P. Byrnes
Special Publications of SEPM
... are re viewed in Table 18-5. Multicollinearity and Autocorrelation Because there is very frequently a high degree of correlation between independent...
1994
BIOGEOGRAPHIC SHELL SHAPE VARIATION IN TROPHON GEVERSIANUS (GASTROPODA: MURICIDAE) ALONG THE SOUTHWESTERN ATLANTIC COAST
MARIANO E. MALVÉ, MARCELO M. RIVADENEIRA, SANDRA GORDILLO
PALAIOS
... for spatial autocorrelation, which could be indirectly influencing intraspecific morphoclines via shifts in growth rates. On the other side, shell size and shape...
2018
Creation and utility of a large fit-for-purpose earth model in a giant mature field: Kern River field, California
Dale Beeson, Katrina Hoffman, Dave Larue, Jerry McNaboe, and Janae Singer
AAPG Bulletin
... layering, which is accomplished by correlating the more than 12,000 wells (well spacing from 50 to 150 ft [from 15 to 46 m]) with an autocorrelation program...
2014
Repeatability indicators in time lapse seismology and their application to the Sleipner CO2 storage project
Brian Russell
Carbon Capture, Utilization and Storage (CCUS)
...(t) is the cross-correlation between the base and monitor traces from lags between -and +max lag, fbb(t) is the autocorrelation of the base trace, and fmm...
2024
Prescriptive Model for Automatic Online Plunger Lift Unconventional Wells Optimization
Adriana Romero, Christopher Feldmann, Katherine Silva Alonso, Gustavo Martinez, José Barros, Marcelo Montero, Juan Ignacio Alvarez Claramunt, Eugenio Ferrigno
Unconventional Resources Technology Conference (URTEC)
... pressure in a system using plunger lift. Period detection uses the technique of multiple period detection and the use of the autocorrelation function...
2020
Punch-Card Calculations of Detailed Stratigraphic Correlations
Charles W. Oliphant, Paul Fullerton
Tulsa Geological Society
... correlation function; the same process performed on two identical rock sections results in an autocorrelation function. That autocorrelation...
1954
A New Permeability Prediction Workflow Using 3D Porous Media Reconstruction Method, Case Studies: Malay Basin Thin Sections
Luluan A. Lubis, Zuhar Zahir T. Harith, Khairul Arifin M. Noh, Hilfan Khairy
Indonesian Petroleum Association
... of this method was first employed on sand sediment by Rubin (2004). Rubin (2004) used autocorrelation between two rectangular regions in digital images...
2012
Exploring the Sub-Salt Play in the Frontier Amadeus BasinInsights from Regional 2D Seismic and Potential Field Data
Emma Hissey, Jennifer Clifford, Tim Debacker
Petroleum Exploration Society of Australia (PESA)
... cut 0.8 Nyquist Linear Phase Low cut out SEG-D TB,100Hz,Pilot,DPG Ref, Sweep AutoCorrelation Sercel SN428/FairField Nodal Hi cut 0.8 Nyquist Linear...
2016
Automatic well-log baseline correction via deep learning for rapid screening of potential CO2 storage sites
Misael M. Morales, Carlos Torres-Verdín, Michael Pyrcz, Murray Christie, Vladimir Rabinovich
International Meeting for Applied Geoscience and Energy (IMAGE)
... formula 𝑥 − 𝑥 (1) 𝛁𝑿 = , 2ℎ where ℎ is the sampling rate in depth of the well log, typically 0.25 or 0.5 ft. The autocorrelation of 𝑿 is written...
2024
Subsurface seismic imaging using drill bit noise
Mehdi Asgharzadeh, Ashley Grant, Andrej Bona, Milovan Urosevic
Petroleum Exploration Society of Australia (PESA)
... to produce seismograms that usually show identifiable seismic events. The autocorrelation of the pilot signal is then deconvolved from cross-correlated...
2019
A preliminary assessment of uncertainties attributed by analysts, array types and processing algorithms for microtremor observations, via the COSMOS Blind Trials
Michael W. Asten, Alan Yong, Sebastiano Foti, Koichi Hayashi, Antony Martin, William J. Stephenson, John F. Cassidy, Jacie Coleman
Petroleum Exploration Society of Australia (PESA)
... (e.g. beam-forming, spatial autocorrelation, seismic interferometry) as applied by the analysts to the incrementally released data, and then compare...
2019
High-efficient reflection retrieval from massive ambient noise using a deep-learning workflow
Yinghe Wu, Shulin Pan, Dawei Liu, Yaojie Chen, Qinghui Cui
International Meeting for Applied Geoscience and Energy (IMAGE)
... that the autocorrelation of transmitted seismic records from data received on the free surface of the horizontally layered media is equivalent to its zero...
2024
Abstract: Wavelet Estimation by Non-Linear Optimization of All-Pass Operators; #90211 (2015)
Somanath Misra and Mauricio Sacchi
Search and Discovery.com
... factor, the fourth-order moment of the all-pass wavelet. The minimum phase wavelet estimated from the autocorrelation of the trace has the same...
2015
Importance of Seismic Attributes in Heterogeneous Reservoir and Improvements Expected from Multi-Component Seismic
Miroslav Barisic, Igor Futivic, Tomislav Malvic
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... and heterogeneous reservoir lithofacies. It is well known that geostatistical mapping of primary variable done by autocorrelation could be highly improved...
2008
Making EM systems and bore logs speak the same language
Aaron Davis, Juerg Hauser
Petroleum Exploration Society of Australia (PESA)
... are accumulated from several chains after a sufficient burn-in and appropriate subsampling to remove autocorrelation. All models fit the measured data to within...
2019
The high fidelity denoising and imaging of near-field hydrophones(NFH) data
Guangkai Ma, Xuelin Yang, Lubo Liu, Zhaolei Wang, Xiaoqiao Ren, Yifan Li
International Meeting for Applied Geoscience and Energy (IMAGE)
..., and then the autocorrelation of seismic data is equal to that of the wavelet. That is, the amplitude spectrum of the wavelet is known. We assume the phase...
2024
Application of time-adaptive FWI on onshore data in Bohai Bay Basin
Wan Xuejuan, Luo Wenshan, Wang Yongming, Gong Ting, Li Daoshan, Chen Yuansheng
International Meeting for Applied Geoscience and Energy (IMAGE)
... on receiver and source point autocorrelation reveals significant wavelet spatial variations, which is another challenge of land FWI implementation. Travel...
2024
Deep water OBN multiple prediction from local reflectivity in the Stolt domain
Cesar Ricardez
International Meeting for Applied Geoscience and Energy (IMAGE)
... then assumes that true reflectivity is random and any periodicity manifests as organized energy in the autocorrelation, subject to attenuation...
2024
Abstract: Comparison of Low-Frequency Data from Co-Located Receivers Using Frequency Dependent Least-Squares-Subtraction Scalars; #90172 (2014)
Kevin W. Hall, Gary F. Margrave, Malcolm B. Bertram
Search and Discovery.com
... autocorrelation. In order to investigate amplitude dependence on frequency, data traces were band-pass filtered before calculating the LSSS with a series of 1 Hz...
2014
Abstract: Acquiring Low Frequencies : Sweeps, Sensors, Sampling and Stories; #90224 (2015)
Olivier Winter, Anna Leslie, and Forest Lin
Search and Discovery.com
... of adding octaves is illustrated on the amplitude spectra of the sweeps (figure 1b) as well as on the autocorrelation wavelets (figure 1c). The broader...
2015
Abstract: Case Study of Seismic Exploration in Complex Urban Areas; #91204 (2023)
Nie MT, Saif Al Mesaabi, Ye PP, Guo SL, Wei T, Su ZQ
Search and Discovery.com
... information in the shallow layer, the shot points are contributing to the shallowness of the stack. 2) Pseudo random sweep The autocorrelation wavelet...
2023
Seismic Attribute Mapping in Carbonate Depositional Environment, Some Lessons from Case Studies; #41159 (2013)
F. Hong and E. Shipilova
Search and Discovery.com
.... Autocorrelation + Chaotism + Coherency + Dominant frequency Workflow Our workflow (Figure 6) consists of, firstly, extracting the single independent seismic...
2013