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Ghost reflection

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Proceedings Papers

Paper presented at the 2005 SEG Annual Meeting, November 6–11, 2005
Paper Number: SEG-2005-2146
...Innovative filtering techniques applied to depth-phase detection in nuclear monitoring data and ghost reflection suppression in exploration seismic data Delaine Reiter*, Jessie Bonner and Anastasia Stroujkova, Weston Geophysical Corporation; Sven Treitel, TriDekon, Inc. Summary We are developing...
Proceedings Papers

Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13840656
... reflection response upstream oil & gas ghost reflection sequestration Arts , R. , R. Elsayed , L. van der Meer , O. Eiken , S. Ostmo , A. Chadwick , G. Kirby , and B. Zinszner , 2002 , Estimation of the mass of injected CO 2 at Sleipner...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5887995
... Summary A marine source generates a direct wavefield as well as a ghost wavefield due to the strong surface reflectivity. This corresponds to a natural blending process. Therefore, in this paper we consider source deghosting as a special case of deblending ('echo-deblending'), leading...
Proceedings Papers

Paper presented at the 2013 SEG Annual Meeting, September 22–27, 2013
Paper Number: SEG-2013-0951
.... But non-repeatability of the source positions and time-lapse changes in the overburden could lower the accuracy of the estimation of saturation. We propose the utilization of non-physical (ghost) reflections retrieved by seismic interferometry to estimate the CO 2 saturation inside the reservoir. We use...
Proceedings Papers

Paper presented at the 1999 SEG Annual Meeting, October 31–November 5, 1999
Paper Number: SEG-1999-1190
... image daniel ebrom imaging down-going image pre-stack depth migration Combining Dual-Sensor Data with Pre-stack Depth Migration Imaging the Ghost and Primary Reflection at Teal South Xiuyuan Li*, Dwight Sukup, Daniel Ebrom, Texaco Inc. Summary In a dual-sensor Ocean Bottom Cable (OBC) survey...
Images
A diagram demonstrates how <span class="search-highlight">ghost</span> <span class="search-highlight">reflections</span> generated by water surface (le...
Published: 12 November 2018
Figure 4 A diagram demonstrates how ghost reflections generated by water surface (left). Water surface generates three additional reflections from a single event (seabed) as resulted in composite responses in (right). More
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5879845
...Preprocessing in displacement space for on-shore seismic processing: removing ground roll and ghosts without damaging the reflection data Jing Wu and Arthur B. Weglein, M-OSRP, University of Houston SUMMARY This paper derives an elastic Green s theorem wave separation method for on-shore data...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5907507
... waves (including the direct wave and the surface wave) and the ghosts can be effectively removed. The method is tested on a layered elastic earth model. The results indicate its effectiveness for reducing the ground roll and ghosts, and without harming the up-going reflection, in preparation...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3584059
... International Meeting for Applied Geoscience & Energy Page 2554 In towed-streamer acquisition, ghost reflections severely reduce the quality of seismic data. Ghost reflections limit the usable bandwidth, which hampers geophysical applications that require broadband data such as full waveform inversion...
Proceedings Papers

Paper presented at the 2007 SEG Annual Meeting, September 23–28, 2007
Paper Number: SEG-2007-0989
... the intervening 60 years; the type of seismic detector has remained the hydrophone. As a consequence, every recorded and finally processed reflection wavelet from marine streamers has been accompanied by a ghost reflection from the ocean’s surface. And the resulting filter effect on the recorded data has...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583377
... With the application and development of inverse Q -compensation technology in seismic data processing, the requirement for accuracy of near-surface Q -value survey is higher and higher. In order to solve the problem of poor representativeness and the influence of ghost reflection caused...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5902239
...De-ghosting by kurtosis maximisation in practice Sergio Grion*, Rob Telling and Janet Barnes, Dolphin Geophysical Summary Adaptive de-ghosting estimates the parameters of the physical process determining the ghost reflection, which are not generally precisely known. By application of incorrect de...
Proceedings Papers

Paper presented at the 2014 SEG Annual Meeting, October 26–31, 2014
Paper Number: SEG-2014-1107
... reflection data spurious multiple seismic interferometry suppress spurious multiple crosscorrelation reflection response seg denver 2014 interferometry virtual-source gather subtraction geophysics surface-related multiple primary reflection ghost reflection physical reflection...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 7–10, 1990
Paper Number: OTC-6337-MS
.... INTRODUCTION The performance of 3D surveys using pressure detectors in water-bottom cables is well established (Rigsby et al., 1987). The method has proven itself effective for obtaining full 3D coverage in areas too congested with obstacles for normal towed streamer operations. But the ghost reflection from...
Proceedings Papers

Paper presented at the 2006 SEG Annual Meeting, October 1–6, 2006
Paper Number: SEG-2006-0010
... Summary Seismic resolution of towed marine streamer data is affected by the ghost reflections at the low end and at the high end of the spectrum. The ghost reflections occur at the source side and the receiver side and propagate from the sea surface to the hydrophones in the streamer, being...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5918412
... generating system parameter estimation method on a real data example with comparisons to the original time- invariant estimation and deghosting. Introduction Ghost reflections in marine exploration are the main limiting factor of the recorded spectrum. The presence of discontinuity near the source...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216558
... ABSTRACT We have conducted a high resolution vertical cable seismic (VCS) survey using a set of buoyed vertical array of receivers which are moored to the seafloor for shallow gas hydrate exploration. The downgoing receiver ghost reflections are separated from the entire wavefield and imaged...
Proceedings Papers

Paper presented at the 2014 SEG Annual Meeting, October 26–31, 2014
Paper Number: SEG-2014-1063
... to noise ratio (S/N). We propose a robust way to minimize the impact of nonstationary noise in ODG without estimating the noise power. Summary The ghost reflection is a delayed replica of the seismic wavefield that gets reflected at the sea surface. When it reaches the seismic receivers, the ghost...
Proceedings Papers

Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13870388
... ABSTRACT We propose a phase-driven deghosting method to remove receiver-side ghost reflection from marine seismic data acquired with horizontal or slanted streamers. Our method is based on the observation that a shot record can be redatumed to place the recording datum of either the up-going...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5819978
... depth difference signature amplitude Summary Recent advances in marine broadband seismic data acquisition have led to a range of new air-gun source configurations. The air-gun arrays have conventionally been kept at a constant depth, but in order to attenuate the source ghost reflection new...

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