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seismic phase

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Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583251
... this problem, we analyzed the characteristics and mechanism of seismic response under such complex geological conditions through forward modeling, established the relationship between waveform information of seismic response characteristics of different strata, the corresponding phase information...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, November 14–16, 2016
Paper Number: IPTC-18684-MS
... Abstract In this paper wavelet phase is extracted using a combination of different moments (CDM), which is introduced as an indicator of localized seismic signal phase. The analysis demonstrates sharpness of the probability distribution of a discrete time series that is more robust than...
Proceedings Papers

Paper presented at the 2010 SEG Annual Meeting, October 17–22, 2010
Paper Number: SEG-2010-1555
... SUMMARY We propose a new seismic attribute, local similarity with the envelope, as an indicator of localized phase of seismic signals. The proposed attribute appears to have a higher dynamical range and a better stability than the previously used local varimax norm. Synthetic and real data...
Proceedings Papers

Paper presented at the 2009 SEG Annual Meeting, October 25–30, 2009
Paper Number: SEG-2009-1087
... changes in stratigraphy, wavefield attenuation due to Q, and unconformities between geologic formations. Although seismic acquisition and processing does a much better job in preserving phase than it does in preserving amplitude, little has been published about interpreting the phase components resulting...
Proceedings Papers

Paper presented at the 2010 SEG Annual Meeting, October 17–22, 2010
Paper Number: SEG-2010-1423
... SUMMARY Detection and characterization of faults, unconformities and salt bodies can be conducted by coherency analysis and dip estimation of the seismic images. I use the complex-valued correlation of the instantaneous phase between neighbouring seismic traces to extract two seismic...
Images
Oultine of Proposed <b>Phase</b> 1 and <b>Phase</b> 2 OBC <b>Seismic</b> (<b>Phase</b> 1A already acqui...
Published: 11 June 2012
Figure 6 Oultine of Proposed Phase 1 and Phase 2 OBC Seismic (Phase 1A already acquired March 2012) More
Images
Comparison of <b>seismic</b> profiles before and after 90° <b>seismic</b> <b>phase</b> reversal
Published: 31 October 2018
Figure 3 Comparison of seismic profiles before and after 90° seismic phase reversal More
Images
<b>Seismic</b> <b>phase</b> and polarity convention. Acoustic impedance curve within the ...
Published: 14 September 2015
Figure 6 Seismic phase and polarity convention. Acoustic impedance curve within the interval of study an expected response on seismic for top and bottom reservoir sands. More
Images
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215226
... tasks. They are not suitable for processing borehole seismic monitoring data recorded by hydrophone arrays or distributed acoustic sensing (DAS) whose sensors are usually single component. In this work, we develop a single component data driven processing technique that can classify seismic phases...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3214515
... ABSTRACT Phase correcting seismic data is important for the optimal interpretation of seismic images. In this paper, we introduce an approach for correcting prestack migration gathers for variable phase rotations which consists of residual NMO corrections, correcting to the same phase using...
Proceedings Papers

Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17797062
... ABSTRACT Seismic wavelet estimation is important for the seismic well tie and seismic inversion. Unfortunately, it is a tedious and time-consuming work. Huge efforts have been spent on seismic wavelet estimation and most of them focus on the amplitude spectrum estimation and ignore the phase...
Proceedings Papers

Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13862007
... ABSTRACT I introduce an instantaneous phase-unwrapping method for simplifying the seismic geomorphology–based and stratal slice–based approach to studying the staking pattern of seismically thin beds. The unwrapping of instantaneous-phase traces can be used to convert a thin-bed waveform from...
Proceedings Papers

Paper presented at the 2014 SEG Annual Meeting, October 26–31, 2014
Paper Number: SEG-2014-0558
... these receivers cause receiver-migration-operator artifacts that severely contaminate the shallow part of the image. In this study, we present a data-driven method that alleviates these imaging artifacts. The method is based on converted-phase elastic seismic migration and de-migration. We show that despite...
Proceedings Papers

Paper presented at the 2011 SEG Annual Meeting, September 18–23, 2011
Paper Number: SEG-2011-1679
... per screen or more). After being converted into SEG-Y format, seismic data from large scale, high density arrays like the EarthScope USArray network can be processed in Vista 10.0 and looked at in a new way to detail lithospheric structure using depth phase precursors. To do this, we have extracted...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3427903
... analyses sheds light on using and/or suppressing them. Presentation Date: Wednesday, October 14, 2020 Session Start Time: 1:50 PM Presentation Time: 4:45 PM Location: 360C Presentation Type: Oral reservoir characterization stationary phase snieder seismic interferometry stationary-phase...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3214865
... ABSTRACT Due to the band-limited and disturbed by noise characteristics of seismic data, conventional inversion methods have the problem of multi-solution. More seriously, phase error exists between conventional inversion methods and real well logging data. Thus, the phase information within...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3198043
... direction is picked up on dip gathers. The phase stabilization migration time-varying space-varying aperture field is obtained to improve the SNR of BWH seismic data. The BWH data improved the resolution and imaging accuracy, increased the SNR and broaden the frequency band 15 Hz in the process of phase...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215613
... ABSTRACT Well-to-seismic tie and wavelet phase estimation are close and related steps for geological interpretation. Usually these processes are solved separately or alternately, and errors in the phase estimation can affect the quality of the well tying procedure. The strategy that we...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215220
... the challenges by embedding finely fractured shale reservoirs with full seismic anisotropy and near-surface responses. SEAM Phase II dataset was sampled as fine as 6.25m in receiver stations, so it captures unaliased near-surface noise. In this paper, the focus is on land acquisition using compressive sensing...

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