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Showing 17,696 Results. Searched 200,357 documents.
Abstract: Practical Examples of the Implementation of Surface Related Multiple Elimination for Land Data; #90286 (2017)
Philip J. Thompson
Search and Discovery.com
.... Dip filtering requires dip discrimination, and Radon-based methods are limited by moveout discrimination. If the difference between primary...
2017
Leveraging Reflection, Refraction, and Multiple Arrivals from Dual-Sensor Streamer Data for High-Fidelity Velocity Model Building and Imaging
G. Rønholt, J.E. Lie, Ø. Korsmo, B. Danielsen, S. Brown, S. Brandsberg-Dahl, A.V. Mavilio, N. Chemingui, D. Whitmore, M. Farouki
Indonesian Petroleum Association
... - IM image (top) and comparison of gathers from imaging with multiples (middle, function of angles) vs primaries (bottom, function of offset...
2014
Application of Inverse-Q Filter and Deconvolution to Improve Seismic Data Quality in the Deep Section
Deddy F. Djanawir, Frans Langitan
Indonesian Petroleum Association
... like primaries. Inverse Q filtering compresses the wavelet-shape on reflection events, either primaries or multiples. Figure 3. Velocity panel...
2004
Reprocessing the East Coast Canada Stonehouse Survey with 3D SRME and Hybrid Layer Tomography PreSDM; #41549 (2015)
Todd Mojesky, Ali Karagül, Bill Goodway, Chris Szelewski, Martin Dashwood
Search and Discovery.com
...” multiples (whose apparent moveout could be faster than those of the primaries), and large time distortions even “busts”, on primary events...
2015
Abstract: Inverse scattering Internal Multiple Prediction on Physical Modeling Data; #90174 (2014)
M. Hernandez, K. Innanen, and J. Wong
Search and Discovery.com
... of the utilization of physical model was to obtain high quality low noise seismic data, with clear and strong primaries and, internal multiples in order to test...
2014
Sparse OBN acquisition in shallow water at CCS Sleipner field: The role of multiples in FWI
Sandrine David, Eddie Cho, Graeme Stock, Fons ten Kroode, M.A.H Zuberi
International Meeting for Applied Geoscience and Energy (IMAGE)
... of free surface multiples in a sparse node and shallow water configuration. A ‘primaries only’ dataset was generated, using the 60Hz velocity model...
2024
Multiple attenuation using 3D SRME with targeted demigration
Marin Petkovic, Ahmed Abouserie, Zhen Wang, Brad Wray
International Meeting for Applied Geoscience and Energy (IMAGE)
... recorded data, including primaries and multiples, followed by a deconvolution of the source signature (Verschuur et al., 1992). In practice...
2024
Data processing experience with PP and PS imaging on SB-DAS: A North Sea case study
R. Bachrach, M. Wilk-Lopes, D. Brager, S. Sonika, C. Thorgersen, E.B. Raknes, Y. Ivanov
International Meeting for Applied Geoscience and Energy (IMAGE)
... a workflow consisting of curvelet transforms and dip filters in combination with velocity discrimination between PP and PS. We then migrated the data...
2024
Wave-equation based seismic AVO inversion: A pragmatic approach to use the full elastic wave-field for exploration and production
Peter Haffinger, Dries Gisolf, Panos Doulgeris, Hansel Gonzalez
International Meeting for Applied Geoscience and Energy (IMAGE)
... of primaries only, the progression to a physically much more accurate data model that includes interbed multiples, mode conversions and transmission...
2022
U-net based primary alignment
Ricard Durall, Ammar Ghanim, Norman Ettrich
International Meeting for Applied Geoscience and Energy (IMAGE)
... processing workflows. Misalignments are mainly caused by inaccuracies in the velocity model. Traditional approaches to event flattening typically involve...
2023
Insight on the uplift the Wave-Equation Based AVO technology may have on unconventional reservoirs: A case study on the Vaca Muerta Formation, Neuquén Basin, Argentina.
David Curia, Ezequiel Valeff, Francisco Ghersi, Hansel Gonzalez, Pablo Benitez
Unconventional Resources Technology Conference (URTEC)
... reflections only) and fully elastic (primaries, multiples etc.) WEB-IMIs on one of the wells. The display is very similar to a VSP display, with the vertical...
2025
Retrieving high-resolution acoustic impedance using full-waveform inversion in presalt reservoir setting, offshore Brazil
Akshat Abhishek, Alok K. Soni, Rene-Edouard Plessix, Martijn Blaauw, Jaydip Guha, Gautam Kumar
International Meeting for Applied Geoscience and Energy (IMAGE)
.... This is achieved by explaining the measured reflection wavefield including primaries and multiples, and correctly handling the transmission losses caused due...
2022
Application of high-end seismic imaging technologies for field development in NWS Australia
Min Lee Chua, Kai Zhao, Narcisa Lazarescu, Wai King Yong, Sergey Birdus, Alexey Artemov, Xiang Li
Petroleum Exploration Society of Australia (PESA)
... in the middle between two primary bounces; secondly it fails to mitigate the strong cross-talk between surface multiples of different orders. To better separate...
2019
ABSTRACT: Multiple suppression by the CRS technique; #90051 (2006)
Juergen Pruessmann, Martin Tygel, Fernando Gamboa, Radu Coman
Search and Discovery.com
..., Burgwedelerstr. 89, Isernhagen HB, 30916, Germany. Multiple suppression generally relies on the filtering of multiples if their kinematic behaviour...
Unknown
Abstract: An Analysis of the Benefits of 3D Pre-Stack Time Migration (Paper 11)
Peter Whiting
Geological Society of Malaysia (GSM)
... for multiples. The addition of a 3D zero-offset time migration after DMO (often using the same simple velocity field as used for DMO) helps avoid...
1996
ABSTRACT: Model-Driven Land Multiple Suppression - the Third Generation; #90051 (2006)
Weihong Zhu, Khalid Alrufaii, Panos Kelamis
Search and Discovery.com
... noise, and residuals of both the primaries and the multiples. The multiple energy is suppressed using a multi-step process beginning...
Unknown
Model-Driven Land Multiple Suppression - the Third Generation
Search and Discovery.com
N/A
Imaging of Fractures and Faults inside Granite Basement Using Controlled Beam Migration (Geophysics Paper 5)
Don Pham, Jason Sun, James Sun, Qingbing Tang, Graeme Bone, Nguyen Truong Giang
Geological Society of Malaysia (GSM)
..., which is also clastic but has a faster velocity. As a consequence, there is a high velocity contrast between group one and group two. Group three...
2008
Abstract: Layer-based inter-bed multiple prediction: less interpretation, more geophysics; #90254 (2016)
Mahmoud Ahmed, Usama Fathy Abdel Kader, Krishna Ramani, Mohamed F. Doheim, Christoph Koeninger, Mohamed Ibrahim Bayome, Yehia Sabry, Mohamed Afia, Hatem Ewida, Yousry Ibrahim, Abdallah Ibrahim
Search and Discovery.com
... sequences. These multiples often have minimal velocity differentiation from primaries, and conventional de-multiple methods have limited success...
2016
Application of land multiple numerical simulation identification and well-driven suppression technology in ultra-deep layers of S Basin
Zhang Shurui, Zang Dianguang, Li Guangpeng, Diao Yongbo, Du Jiajun, Liu Shumin
International Meeting for Applied Geoscience and Energy (IMAGE)
... the dilemma that the existing methods are difficult to work because of the minor velocity difference between the internal multiples and the primaries...
2024
Abstract: Statics Preserving Sparse Radon Transform; #90224 (2015)
Nasser Kazemi
Search and Discovery.com
... to apply filtering and remove multiples from the predicted data. It is well understood that multiples after NMO correction with primary events velocity show...
2015
ABSTRACT: Evolution of Pre-Stack Multiple Suppression Based on Velocity Discrimination; #90051 (2006)
Mahmoud E. Hedefa, Weihong X. Zhu, Khalid O. Rufaii
Search and Discovery.com
...ABSTRACT: Evolution of Pre-Stack Multiple Suppression Based on Velocity Discrimination; #90051 (2006) Mahmoud E. Hedefa, Weihong X. Zhu, Khalid O...
Unknown
Abstract: Sub-Salt and Sub-Basalt Imaging Using Long Offset and Multicomponent Seismic Data, by J. Gaiser, N. Jones, and P. Fontana; #90923 (1999)
Search and Discovery.com
1999
Multi-dimensional inverse scattering series internal multiple model construction via orthogonal contribution summation
Frederico Xavier de Melo, Zhiming James Wu
International Meeting for Applied Geoscience and Energy (IMAGE)
... setting, to a relatively weak and conformable trend of short-period multiples constructively and destructively interfering with primaries. The former...
2024
Evaluation of Different Interbed Multiple Attenuation Techniques
Search and Discovery.com
N/A