1-20 of 7094 Search Results for

Instantaneous frequency

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Proceedings Papers

Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17672950
... ABSTRACT Instantaneous frequency is widely used for identifying specific seismic events, such as abnormal attenuation and thin bed tuning, based on its frequency content. It is one of the important seismic attributes related to the complex seismic trace. Although the definition itself is clear...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5833787
... Summary Instantaneous frequency (IF) extracted by the Hilbert transform (HT) and continuous wavelet transform (CWT) is sensitive to noise and also suffers from meaningless values. We propose a robust method to extract instantaneous frequency from seismic data based on timefrequency analysis...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5904996
... Summary This paper reports the application of instantaneous frequency in tight oil exploration, namely predicting the high-energy lacustrine shelly shoal of lower Jurassic Daanzhai Member in Central Sichuan Basin, China. The high-energy lacustrine shelly shoal Daanzhai Member is the target...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5908239
... Summary As seismic data from field acquisition is a typical non-linear and non-stationary signal, the conventional method to extract the instantaneous frequency by the Hilbert transform which is proper for linear and stationary signal is limited in practice. A novel approach based...
Proceedings Papers

Paper presented at the 2013 SEG Annual Meeting, September 22–27, 2013
Paper Number: SEG-2013-0919
... (MEM) to WVD to obtain a robust and high resolution time-frequency representation of seismic traces, and we also introduce a formula to estimate instantaneous frequency (IF) in time domain. We apply our approach to the spectral decomposition and IF analysis of a seismic dataset from the Gulf of Mexico...
Proceedings Papers

Paper presented at the 2012 SEG Annual Meeting, November 4–9, 2012
Paper Number: SEG-2012-0396
... Summary Seismic instantaneous frequency (IF) is a useful attribute for characterizing depositional features from seismic data. However, commonly used IF estimations methods are sensitive to noise and also suffer from meaningless values. In this paper, we propose an IF regularization method...
Proceedings Papers

Paper presented at the 2012 SEG Annual Meeting, November 4–9, 2012
Paper Number: SEG-2012-0902
... & gas energy distribution instantaneous frequency main menu test signal analytic counterpart estimation data quality extraction generalized morse wavelet reservoir characterization gmw noise olhede application seismic data The extraction of instantaneous frequency from seismic data...
Proceedings Papers

Paper presented at the 2011 SEG Annual Meeting, September 18–23, 2011
Paper Number: SEG-2011-1973
... ABSTRACT Study of synthetic models and field data shows that anomalous instantaneous frequency can aid thin-bed and stratigraphic interpretation. Time-frequency analysis of instantaneous-frequency spikes may improve continuity of frequency-spike “events” and presentation of instantaneous...
Proceedings Papers

Paper presented at the 2010 SEG Annual Meeting, October 17–22, 2010
Paper Number: SEG-2010-1292
... Summary Synthetic models and field data show that anomalous instantaneous-frequency (both frequency spikes and frequency “events”) are clearly linked to bed thickness. Frequency spikes are related to relative amplitude minima along a seismic trace that occur either at the merging point...
Proceedings Papers

Paper presented at the 2009 SEG Annual Meeting, October 25–30, 2009
Paper Number: SEG-2009-2457
... Summary We derive an approximate equation combining the quality factor Q , the traveltime of a wave, and the variation of the instantaneous frequency (IF) at the envelope peaks of two successive seismic wavelets, along the wave propagating direction, based on the theory of one-way wave...
Proceedings Papers

Paper presented at the 2006 SEG Annual Meeting, October 1–6, 2006
Paper Number: SEG-2006-0968
... Summary Thin bed thickness can be predicted by peak instantaneous frequency when the thin bed response has small interference effects from other layers. Based on a simple wedge model, the peak instantaneous frequency is inversely proportional to the layer thickness such that thinner layers...
Proceedings Papers

Paper presented at the SPWLA 47th Annual Logging Symposium, June 4–7, 2006
Paper Number: SPWLA-2006-RR
... slowness curve borehole flexural wave Symposium well logging flexural wave instantaneous frequency-slowness method instantaneous frequency frequency slowness curve Signature mixed acoustic mode Upstream Oil & Gas acoustic mode dipole source spwla 47 instantaneous frequency curve wave...
Proceedings Papers

Paper presented at the The Ninth International Offshore and Polar Engineering Conference, May 30–June 4, 1999
Paper Number: ISOPE-I-99-322
... ABSTRACT: The quasi-steady hypothesis is widely used to describe the vortexinduced transverse force on a structural member in a time varying flow. The quasi-steady hypothesis depends upon the use of an instantaneous frequency. This paper discusses the concept of the instantaneous frequency...
Proceedings Papers

Paper presented at the 1997 SEG Annual Meeting, November 2–7, 1997
Paper Number: SEG-1997-1941
...SS 1.6 Instantaneous frequency estimation using the reassignment method Jan E. Odegard,* Richard G. Baraniuk and Kurt L. Oehler Dept. of ECE, Rice University, Houston, Texas SUMMARY This paper explores the method of reassignment for ex- tracting instantaneous frequency attributes from seismic data...
Proceedings Papers

Paper presented at the 1991 SEG Annual Meeting, November 10–14, 1991
Paper Number: SEG-1991-1335
... ABSTRACT No preview is available for this paper. instantaneous phase frequency measure instantaneous frequency equation low frequency shadow interpretation data processing taner gas sand data analysis anomaly lkole polytechnique seismic energy reservoir characterization...
Proceedings Papers

Paper presented at the 1987 SEG Annual Meeting, October 11–15, 1987
Paper Number: SEG-1987-0591
... ABSTRACT No preview is available for this paper. data processing 2 shekel reservoir characterization mean fourier frequency envelope peak envelope interpretation instantaneous frequency fourier mean frequency wavelet frequency upstream oil & gas fourier relation...
Proceedings Papers

Paper presented at the 1983 SEG Annual Meeting, September 11–15, 1983
Paper Number: SEG-1983-0613
...: Cambridge, Mass., M.I.T. Press Toksoz, N. M., Cheng, C. H., and Timur, A., 1976, Velocities of seismic waves in porous rocks: Geophysics, v. 41, p. 621-645. Sp Sand FIG 6. ERPRESSVRED Cycle-Octave Representation for Instantaneous Frequency Spectra S24.5 P. Goupillaud, Enpex; A. Grossmann, Centre de...
Images
Images
Images

Product(s) added to cart

Close Modal