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Water reverberations

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Proceedings Papers

Paper presented at the 1983 SEG Annual Meeting, September 11–15, 1983
Paper Number: SEG-1983-0264
..., Calgary. Wave Field Extrapolation Techniques for Prestack Attenuation of Water Reverberations S2.7 Henrik Bernth and Lars Sonneland, Geco, Norway Hard seafloor multiple reflections, which are often found in seismic data recorded at polar latitudes, sometimes prove difficult to eliminate. Traditional...
Proceedings Papers

Paper presented at the 1989 SEG Annual Meeting, October 29–November 2, 1989
Paper Number: SEG-1989-0653
... ABSTRACT No preview is available for this paper. ghost reflection new orleans reservoir characterization water-column reverberation velocity detector data upstream oil & gas autocorrelation function detector water-bottom material reflection attenuation water-bottom cable...
Proceedings Papers

Paper presented at the 2002 SEG Annual Meeting, October 6–11, 2002
Paper Number: SEG-2002-2194
... Summary Conventional predictive deconvolution is very good for suppressing normal incidence water bottom reverberations. However, the output signature can vary significantly with the value selected for the prediction distance (lag). Generalizing predictive deconvolution with relative entropy...
Proceedings Papers

Paper presented at the 7th World Petroleum Congress, April 2–9, 1967
Paper Number: WPC-12149
... use of geophone and shot patterns and by the use of compositing and velocity filtering techniques. Multiple reflections may be suppressed by employing the Common Depth Point method of recording; and ghosts, water reverberations, and variations of shot spectra may be minimized by the application...
Proceedings Papers

Paper presented at the 2003 SEG Annual Meeting, October 26–31, 2003
Paper Number: SEG-2003-2032
... before conventional predictive deconvolution. For very shallow water with two-way travel times shorter than the effective compensated wavelet kernel, it is necessary to use relative entropy spiking or predictive deconvolution. Introduction Classic papers describing the behaviour of water reverberations...
Proceedings Papers

Paper presented at the 2013 SEG Annual Meeting, September 22–27, 2013
Paper Number: SEG-2013-0661
... SUMMARY Ocean bottom seismic multi-component sensors record both pressure and velocity wavefields. This dual recordings make upgoing and downgoing wavefield separation possible, which is useful for imaging with multiples and eliminating receiverside water reverberations. To combine the dual...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 11–14, 2019
Paper Number: SPE-197955-MS
...-stack and post-stack stages. Source-side deghosting highlighted a low frequency residual bubble and was followed by another pass of de-bubbling based on a smooth spectrum assumption. Shallow water reverberation was minimized by 3D deconvolution and high-resolution radon demultiple. 5D regularization...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 7–10, 2016
Paper Number: SPE-183272-MS
... deconvolution to attenuate shallow water reverberations. This, with resilient post stack processing has shown the way to produce significantly improved seismic data for interpretation with good level of confidence. Receiver Combination airgun array data quality Abu Dhabi Upstream Oil & Gas...
Proceedings Papers

Paper presented at the 1990 SEG Annual Meeting, September 23–27, 1990
Paper Number: SEG-1990-1614
... water reverberation seismic data miami university application Value of Amplitude Equalization in Slant-Stack Processing Zan-dong Ding : Duke University; Bruce R. Rosendahl, University of Miami; and Richard A. Strelitz., Duke University SP1.4 GUNNARY APPLYING ANPLITUDB EQUALIZATION Seismic data...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5856770
... Summary Shallow water environments are dominated by short period reverberation contamination. Surface-related multiple elimination (SRME) can be successfully applied but distortion at the multiple prediction stage must be minimized so that the adaptive subtraction (multiple elimination) step...
Proceedings Papers

Paper presented at the 1995 SEG Annual Meeting, October 8–13, 1995
Paper Number: SEG-1995-1482
... model is obtained by linearising the exact reflection response in a 1D structure with respect to Thus, the data model used includes primaries, all pure water layer multiples and all peg-legs created by reflections from below the water bottom and water layer reverberations, but it does not contain...
Proceedings Papers

Paper presented at the 1995 SEG Annual Meeting, October 8–13, 1995
Paper Number: SEG-1995-0987
... sequence reverberation sequence bottom reflectivity calibration survey reflectivity summation reverberation reservoir characterization An improved method for deriving water-bottom reflectivities for processing dual-sensor ocean-bottom cable data SA3.2 Josef Paffenholz* and Fred J. Barr, Western...
Proceedings Papers

Paper presented at the 2012 SEG Annual Meeting, November 4–9, 2012
Paper Number: SEG-2012-1274
... modeling pap 0 test 1 deconvolution amplitude reverberation Connecting deconvolution and SRME Gert-Jan van Groenestijn*, Warren Ross, and Gunaseelan Nandan Cumaran, ExxonMobil Summary The two methods in a traditional shallow water demultiple approach, deconvolution and SRME, are both very well...
Proceedings Papers

Paper presented at the 1991 SEG Annual Meeting, November 10–14, 1991
Paper Number: SEG-1991-1315
... for attenuating water la er multiples 3 reverberations (or other near-surface on common--Source seismic gathers. The technique involves 2-D non-linear filtering in the r-p domain, where the filter P ain at each P ixel is calculated from the ratio o total energy original data) to predicted multiple energy...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, December 4–6, 2007
Paper Number: IPTC-11715-MS
... utilization of the vertical geophone sensor in a conventional two-component OBC processing flow is in the mitigation of receiver-side reverberation. The theory behind this is approach is well documented (Barr, F., 1997). However, the noise generated in a variable-depth, shallow- water environment often...
Proceedings Papers

Paper presented at the 1992 SEG Annual Meeting, October 25–29, 1992
Paper Number: SEG-1992-1165
.... The rationale for this decomposition is that some seismic processes are more effective in the plane wave domain than in the shot or CMP domain. A good example is gapped deconvolution to remove water reverberations. Deconvolution requires successive multiples to be periodic. On real seismic data, however...
Proceedings Papers

Paper presented at the 1992 SEG Annual Meeting, October 25–29, 1992
Paper Number: SEG-1992-1081
... are in principle the only unknowns of the physical problem. This method yields a kind a prestack Backus technique where sea floor reflectivity is obtained by nonlinear least squares optimisation. RECEIVER AND SOURCE REVERBERATIONS BY using wave equation extrapolation of the data throught the water layer...
Proceedings Papers

Paper presented at the 2006 SEG Annual Meeting, October 1–6, 2006
Paper Number: SEG-2006-2807
... the derive gate. Relative entropy normalization scales the classic spiking deconvolution filter by the square root of the reciprocal of the relative prediction error, RPE a unit less fraction smaller than 1.0. Introduction Classic papers describing the behavior of water reverberations (Backus, 1959...
Proceedings Papers

Paper presented at the 2003 SEG Annual Meeting, October 26–31, 2003
Paper Number: SEG-2003-1988
... twenty years experience in conducting the seismic exploration in Taklimakan desert area, we have found that there is a very good and stable water table in the desert. When the wave passes through the layer between the surface and the table, the sand dune reverberation will be generated. Fig<1a> without...
Proceedings Papers

Paper presented at the 1997 SEG Annual Meeting, November 2–7, 1997
Paper Number: SEG-1997-0067
... ABSTRACT No preview is available for this paper. receiver location reverberation calibration water-column reverberation geophone trace noise predictive deconvolution model value effectiveness model trace deconvolution scale factor hydrophone autocorrelation function...

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