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Specail Feature Computer-Aided Seismic Analysis and Discrimination
1977
Computer
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hardware, (3) a great demand for new mathematical techniques and accompanying digital processing methods which can extract more useful information from the massive quantities of seismic data, and (4) more ...
Chen's assessment of next steps in the seismic analysis field: (1) a great increase in the use of small processors both for data, acquisition and processing, (2) increased reliance on new software and ...
Using a non-statistical approach to feature extraction based on such concepts as wave complexity, spectral ratio, and third moment of frequency, a training set of 17 earthquakes and 19 explosions yielded ...
doi:10.1109/c-m.1977.217528
fatcat:e7gax6iqvrectmj7fxzw2ixszq
Detection of the Long Period Long Duration (LPLD) Events in Time-and Frequency-Domain
2015
Acta Geophysica
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LPLD might be related to the productivity of the reservoir. Different methods of the LPLD events' detection recorded during hydraulic fracturing are presented. ...
Additionally, a new approach to LPLD events detection -instantaneous seismic attributes -was used, common in a classical seismic interpretation but not in microseismic monitoring. ...
Considering the long duration and the mobility of tremor activity, the generation of tremors may be related to the movement of fluid in the subduction zones (Obara 2002) . ...
doi:10.2478/s11600-014-0262-1
fatcat:7ucodu6uxngw3gbl3talrqp66m
Matching pursuit based on the rotated time-frequency atomic dictionary and its applications to seismic non-stationary data
2019
Journal of Geophysics and Engineering
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Compared with the conventional atoms, the rotated time-frequency atoms are more compliant to the local features of non-stationary seismic data. ...
The time-frequency spectrum of an attenuated seismic wave rotates due to the influence of intrinsic quality factor. ...
Acknowledgements This work is supported by the National Science and Technology Major Project of China (2016ZX05003-003) and Inversion Methods Study of Sedimentary Model Constrained Lithofacies and Fluid ...
doi:10.1093/jge/gxz043
fatcat:dfdjrvqmzjgfrbch2r2yinlzfi
Spectral Decomposition and a Waveform Cluster to Characterize Strongly Heterogeneous Paleokarst Reservoirs in the Tarim Basin, China
2019
Water
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The specific frequency data volume that is the most sensitive to the reservoir is chosen based on seismic synthesis traces of well-logging data and geological interpretability. ...
Traditional seismic analysis methods are not able to solve the identification problem of such strongly heterogeneous reservoirs. ...
Conflicts of Interest: The authors declare no conflict of interest. Water 2019, 11, 256 ...
doi:10.3390/w11020256
fatcat:l6f72xzk5jbw5mofq24ebjv5rm
Seismic Attributes For Enhancing Structural And Stratigraphic Features: Application To N-Field, Malay Basin, Malaysia
2021
Bulletin of the Geological Society of Malaysia
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The current research review these geological structures through a case study of 3D seismic data from N-field in the viewpoint of Malay Basin. ...
Seismic attributes are an influential assistance to seismic interpretation, delivering geoscientists with alternative images of structural (faults) and stratigraphic features (channels), which can be utilised ...
ACKNOWLEDGEMENTS Firstly, the authors wish to thank Universiti Teknologi PETRONAS (UTP) and the Centre of Seismic Imaging (CSI) for providing the facilities, and PETRONAS for research data and permission ...
doi:10.7186/bgsm72202108
fatcat:jtlhalltazbd7astlzwxzbx2hu
Identification of Paleo-Volcanic Rocks on Seismic Data
[chapter]
2012
Updates in Volcanology - A Comprehensive Approach to Volcanological Problems
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Unfortunately, the majority of volcanic features are rather thin (some tens of meters thick). ...
A close cooperation of specialists from different disciplines is required in order to resolve specific problems related to seismic interpretation and reservoir prediction within such a complex environment ...
Acknowledgment The authors would like to thank all our colleagues (see references) for their friendly cooperation and fruitful discussions of the results. ...
doi:10.5772/24943
fatcat:pv3c4sani5htvjz73p3nvgthkq
Fracture Seismic: Mapping Subsurface Connectivity
2019
Geosciences
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Fracture seismic is used to map the location, spatial extent, and physical characteristics of fractures. The strongest fracture seismic signals come from connected fluid-pathways. ...
Time-lapse fracture seismic methods map the flow of fluids in the rocks and reveal how the reservoir connectivity changes over time. ...
Conflicts of Interest: The authors declare no conflict of interest. ...
doi:10.3390/geosciences9120508
fatcat:vml53bw7nrftnjkeuiwejaonli
Seismic Hazard Analysis along Koyna Dam Area, Western Maharashtra, India: A Contribution of Remote Sensing and GIS
2016
Geosciences
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The Koyna-Warna area in Maharashtra, Western India, is one of the world's best examples of reservoir-induced seismicity. ...
The resulting maps of weighted overlay procedures derived from causal morphometric factors that influence the susceptibility to ground motion revealed areas with higher, medium and lower susceptibility ...
From the DEM data, flat areas with no curvature of the terrain and low to no slope gradients were extracted. ...
doi:10.3390/geosciences6020020
fatcat:mknp6vralffejbr77wqx6pw6gu
Application of Geologically Constrained Machine Learning Method in Characterizing Paleokarst Reservoirs of Tarim Basin, China
2020
Water
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By empirical mode decomposition, the time–frequency features of the seismic data are obtained and then a sensitive frequency is selected using geological prior constraints, which is input to fuzzy C-means ...
Applying machine learning algorithms directly on deep seismic signals or seismic attributes of deep carbonate fracture-cavity reservoirs without any prior knowledge constraints will result in wasted computation ...
Conflicts of Interest: The authors declare no conflict of interest. ...
doi:10.3390/w12061765
fatcat:2n3heu7dtvginj6mzhwaysi52e
Application of instantaneous spectral analysis and acoustic impedance wedge modeling for imaging the thin beds and fluids of fluvial sand systems of Indus Basin, Pakistan
2018
Proceedings of the Indian Academy of Sciences, Earth and Planetary Sciences
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To conquest this issue, we execute the progressed seismic ascribe methods to the 3D seismic information of the Miano area of the Indus Basin, SW Pakistan. ...
Yet, the continuous wavelet transforms (CWT) of spectral decomposition (SD) separates the thick and thin sand beds of channel sand and point bars, which were not unsurprising utilizing the band-limited ...
Seismic-microtechnology (SMT) Kingdom platform support is highly acknowledged during this research project. ...
doi:10.1007/s12040-018-0997-1
fatcat:kxhc2iq5z5g3bp23w6whofz66m
Machine Learning for Volcano-Seismic Signals: Challenges and Perspectives
2018
IEEE Signal Processing Magazine
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Namely we review (i) tools for the optimal representation of volcano-seismic signals (feature space) and the available methods for volcano-seismic events (ii) detection and (iii) classification. ...
Our prediction system is tested on 6 years of recordings containing 109434 volcano-seismic events acquired from Ubinas volcano (the most active volcano in Perú). ...
Finally, [41] uses 40 features extracted both from time and spectral domains. ...
doi:10.1109/msp.2017.2779166
fatcat:n6w5kz3kxfbgxojknjhxjiq7tm
Low frequency seismic source investigation in volcanic environment: the Mt. Vesuvius atypical case
2020
Advances in Geosciences
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The different decay patterns of the spectra, the existence of both earthquake families as well as single events, the relatively wide seismogenic volume inferred from the locations and polarization features ...
This kind of seismicity is atypical for the volcano and poorly studied, therefore we characterized it in terms of spectral analysis, waveform cross-correlation, location and polarization properties. ...
The analyses performed in this paper have been carried out with the INGV-OV monitoring data, in the framework of the Agreement (Annex A) between the Italian Civil Protection Department (DPC) and INGV. ...
doi:10.5194/adgeo-52-29-2020
fatcat:c52hgppzyff3tdjmjbwmqecn5q
Flow and swell noise in marine seismic data
2009
Geophysics
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Figure 3 . 7 : 37 Power spectral estimates from 480 traces on: Top: a modern solid streamer. Bottom: an older fluid filled streamer. ...
Abstract Various weather related mechanisms for noise generation during marine seismic acquisition is addressed from a fluid dynamical perspective. ...
hydrophone arrays, obtained both from measurements and simulations. ...
doi:10.1190/1.3078403
fatcat:4o6vcaiinbhvbjkgyk2xql6a6e
AVO analyses and spectral decomposition of seismic data from four wells west of Shetland, UK
2008
Petroleum Geoscience
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A second aspect to this paper centres on the application of spectral decomposition to the seismic data relating to these four wells, which provides further evidence that there are also apparent differences ...
in the spectral characteristics between them. ...
COMPARISON OF AVO ANALYSES FROM FOUR WELLS At least one or two 2D lines of seismic data are extracted from 3D surveys for use in the AVO analyses from the four wells. ...
doi:10.1144/1354-079308-724
fatcat:h2t6zielxjbplj447rhbe2pmby
Characterizing carbonate facies using high-definition frequency decomposition: Case study from North West Australia
2017
Interpretation
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The workflow starts with conditioning of the seismic volume using structurally oriented noise attenuation filters to remove any random and coherent noise from the input data. ...
These observations were extracted as geobodies to allow for visualization, and they can be used in an automated seismically based facies classification scheme. ...
In addition, the authors would like to acknowledge the reviewers of Interpretation and D. Johnston, the editor of this paper, for his valuable recommendations and kind help. ...
doi:10.1190/int-2016-0173.1
fatcat:ot4hyaq4frg3thd67zinez3tzi
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