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1-20 of 56
Keywords: multiple model
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Proceedings Papers
Thais Sales, Frederico Xavier de Melo, Joel Monteiro, Dmitri Skorinski, Shady Attia, Mohammad Ghazey, Marcella Braga, Etory Sperandio, André Ferreira, Moacyr Bezerra, Thiago Costa
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4100792
... assumption geology multiple attenuation data-driven multiple attenuation case study geologist multiple model american association deep-water obn kdm image workflow attenuation exploration geophysicist surface multiple prediction Iterative 3D Deterministic and Data-driven Multiple Attenuation...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4101284
... method for demultiple based on moveout discrimination in the CDP domain. Our novel approach generates several multiple models based on moveout discriminations for a given input CDP gather, enhancing flexibility without additional computational costs. We validate the generalization ability...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4096286
... in areas with strong dip discrimination between primary and multiple energy but perform poorly in areas with similar dip. We present a novel method based on Least-Squares subtraction that automati-cally adapts the predicted multiple model to the geology by using the amplitude of the multiple generator(s...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3580563
... signal and noise separation, the estimated multiple model needs to be very close to the actual multiple content of the data. However, prediction methods often do not produce an estimation which satisfies this requirement. An adaptive preconditioning or regularization step is needed to bring...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3426132
..., where we utilize multi-azimuth data jointly to improve the Orientation 56º/236º 129º/309º 4500 m 4000 m amplitude and phase accuracy of the multiple model prediction, which thus lead to a better subtraction. We will Streamer 7000 m 5000 m 6.25 m 6.25 m demonstrate that this workflow can overcome...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3426884
... jackson workflow land multiple attenuation approach multiple model prudhoe bay alaska tony clark signal-rich data westerngeco reservoir characterization gino alexander exploration geophysicist 10 case study Land multiple attenuation approach a case study from Prudhoe Bay, Alaska Tony Clark...
Proceedings Papers
Suman Gautam, Frederico Xavier de Melo, Jessica Hapney, Andrew Davidoff, Michael L. Gurch, Sunwoong Lee, Stephen Woods, Yi Ye, Dan Mullally
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3428300
... generator migration seg international exposition attenuation internal multiple interbed multiple algorithm reservoir characterization multiple-generating horizon expanded abstract exploration geophysicist 10 multiple generator multiple model multiple attenuation Stratigraphy-generated...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3426939
... 3D surface-related multiple elimination (SRME) predicts all orders of surface multiples using seismic data and is a solid and effective approach for surface multiple model estimation. SRME is a data-driven and computationally very intensive process. Predicting the multiple model for a seismic...
Proceedings Papers
Pedro Barros, Marcela Ortin, Frederico Xavier de Melo, Marcella Rapini, Felipe Coelho, Rosenberg Lima
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3427655
... to model the related multiples as described by Kostov et al. (2015) with the generalized deterministic water-layer demultiple. Here, we show a case study in the Campos Basin, offshore Brazil, where towed-streamer data complements ocean-bottom cable data to generate a 3D SRME multiple model...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3427692
... internal multiple expanded abstract seg international exposition internal-multiple elimination chao ma data-driven approach reflection exploration geophysicist 10 adaptive subtraction generator internal-multiple generator application algorithm multiple model Analysis and application of data...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215407
... the burden of heavy preprocessing (interpolation and noise attenuation) of the data and multiple model. This is particularly encouraging with respect to potential applications of this method of adaptive subtraction in high-dimensional data sets. Presentation Date: Tuesday, September 17, 2019 Session Start...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-W04-03
... of internal multiples using an inverse scattering series (ISS) algorithm and subsequent attenuation with an aim to improve data quality and quantitative understanding of Åsgard field Smørbukk. multiple model subtraction data quality modeling workflow information smørbukk prediction reservoir...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17789671
... signature reservoir characterization multiple signature seg seg international exposition multiple model estimation aperture ray ABSTRACT We describe a workflow to optimize surface related multiple elimination (SRME) aperture constrained by the travel path of the main sea-surface-generated...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17737864
..., September 27, 2017 Start Time: 10:35 AM Location: 370A Presentation Type: ORAL single waz survey annual meeting reservoir characterization multiple model orthogonal waz survey annual international meeting multiple prediction cable interpolation interpolation joint multiple prediction...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17741149
... of the two categories. First, multiple-contaminated data and the predicted model are transformed to the curvelet domain. We then break the multiple adaptation into two stages: a global adaptation that corrects significant errors in the multiple model among the curvelets with similar dips, temporal...
Proceedings Papers
Jun Tang, Zhimei Yan, Neeraj Duhoon, William Sanger, Carlos Espinoza, Alexander Zarkhidze, Scott Slaton
Publisher: Society of Exploration Geophysicists
Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17680141
... the supplemental dataset and the acquired data are included as input to perform 3D SRME for the large-offset coil data. This case study shows that the resulting multiple model matches the seismic measurements better and leads to a cleaner migrated image. Presentation Date: Wednesday, September 27, 2017 Start...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17724656
... the near offset gaps for the water bottom reflections, which helps to improve the multiple model at the nearest available offset as well as to suppress the edge effects. MULTIPLEMODELLINGUSINGMULTICHANNELPRE- DICTION FILTERS We estimate our multichannel prediction filters by minimising the energy between...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13710124
... ABSTRACT In this paper, we present a novel algorithm that performs adaptive subtraction of a multiple model in the curvelet domain. The algorithm is based on the observation that the predicted model is an imperfect estimate of the actual multiples, containing two types of error: 1...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5910437
...) has severe difficulties in dealing with a shallow water environment due to the short period nature of the water bottom multiples. For such shallow water environments, in deeper areas the problem with the multiple model is even more severe. This leads to poor attenuation of water-bottom related...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5856770
... adaptive subtraction reservoir characterization cmp gather multiple model reference list multi model subtraction reverberation prediction amplitude Improved shallow water demultiple with 3D multi-model subtraction Simon R. Barnes*, Rob F. Hegge, Hana Schumacher, Rebekah Brown, Petroleum Geo...
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