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Showing 19,417 Results. Searched 200,636 documents.
Abstract: Salt Shape Tomography; #90254 (2016)
Patrice Guillaume, Olivier Hermant, Stanislaw Warzocha
Search and Discovery.com
... contrasts on depth-migrated common image point gathers. In the multi-layer approach, the sharp velocity contrasts are introduced as layer boundaries. Using...
2016
Abstract: Assessment of a Re-processed GPR Data in the Distal Part of Trandum Delta in Southern Norway; #90254 (2016)
Nuha E. Mohamed, Tor S. Pedersen, Per Aagaard, Annik Myhre, and Walid Osman
Search and Discovery.com
... recorded as a singlefold, fixed-offset reflection profiles, expect for three common depth point (CDP) gathers recorded for velocity analysis. Both the 50...
2016
Abstract: Salt Velocity Model Building by Seiemic-CSEM Joint Inversion in the Red Sea; #90319 (2018)
Daniele Colombo, Diego Rovetta, Ersan Turkoglu, Gary W. McNeice, Ernesto Sandoval-Curiel
Search and Discovery.com
... the results of a seismic-only derived velocity model. More geology-consistent results and flatter image gathers are obtained through the joint inversion...
2018
Abstract: High Resolution Azimuthal Diffraction Imaging of Natural Fracture Zones in Fractured Carbonates and Unconventional Shales; #90319 (2018)
Alexander M. Popovici, Ioan Sturzu, Tijmen J. Moser
Search and Discovery.com
... technology that can be used to image and identify in very fine detail the small scale fractures in the reservoir that form areas of increased natural...
2018
Abstract: Progress and Challenges in the Processing and Use of Land Seismic Data Acquired via Compressive Sensing; #91204 (2023)
Gregory Culianez, Tahar Ben Youssef, Mohammad Farooqui, Ahmed Al Harthi
Search and Discovery.com
... promise cost-optimization without compromising final image quality. However, irregular spatial data sampling is a challenge for existing processing...
2023
Abstract: Understanding the Effect of Near-surface Extreme Velocity Heterogeneities on the Seismic Data in the Arid Environment Through High-fidelity Outcrop-based Models; #91204 (2023)
Ahmad Ramdani, Ilya Silvestrov, Yazki Ibrahim, Andrey Bakulin
Search and Discovery.com
... the models. Overprinting karsts were distributed to the 3D property models based on open-source satellite image mapping of circular topographic...
2023
Depth Imaging Seeing the Invisible
Vetle Vinje
GEO ExPro Magazine
... P L O R AT I O N (WEM) One drawback with both WEM and RTM is that it is both difficult and expensive to create the image gathers needed for velocity...
2010
De-Risking a Gas Development Using Geophysical Methods; #41086 (2012)
Alessandro Mannini, Phil Rawstron, Shin Ni Chai, and Andrew Spedding
Search and Discovery.com
... of the data whilst reducing noise and multiples. Other objectives were to generate high-quality flattened gathers that can be used for pre-stack...
2012
Unlocking the potential of WAZ data for subsalt imaging using FWI: A case study in the Perdido area
Vivek Vandrasi, Zhihua Su, Shouting Huang, Yogesh Agnihotri, Sabaresan Mothi
International Meeting for Applied Geoscience and Energy (IMAGE)
... and the benefits of FWI Imaging over RTM imaging. The FWI Image was de-migrated to generate synthetic shot gathers based on the WAZ acquisition geometry and re...
2022
Full-waveform inversion and FWI imaging for land data
James Sheng, Cristina Reta-Tang, Faqi Liu, Alfredo Vzquez Cant, Alejandro Cabrales Vargas
International Meeting for Applied Geoscience and Energy (IMAGE)
... and provide an alternative image for poor S/N land datasets. the near surface model due to complexities dealing with characteristics of the near surface...
2022
Application of Full Waveform Inversion to Resolve an Eroded Shallow Carbonate Platform, North Madura, East Java, Indonesia
David Cavalin, Nurrul Ismail, Tom Paten, Kola Agbebi, Dave Lim
Indonesian Petroleum Association
... acquired. Shot gathers with minimal preprocessing were used as input to FWI. Swell noise and mechanical noise attenuation was applied in addition...
2019
Revealing the discontinuities by 3D prestack diffraction separation and imaging
Chuangjian Li, Suping Peng, Xiaoqin Cui, Peng Lin
International Meeting for Applied Geoscience and Energy (IMAGE)
... image results and (b) the diffraction image results, which are generated from 25 shot gathers. To demonstrate the performance of the proposed method...
2022
Imaging Subsurface Structures Under Gas Clounds by Multi-Component Technology
Xiaogui Miao, Loh Fong Cheen, Libo Zi, Jing Du, Magali Beele, Jacques Bonnafe, Natalia Anggriani, Gilles Vallon, Claudio Strobbia
Indonesian Petroleum Association
... clouds and are used as a good alternative to image subsurface structures in the area. The detailed survey design and advanced processing technologies...
2014
High-End Model Building Techniques for Revealing a Pre-Carbonate Reservoir Offshore East Natuna Basin, Indonesia
Jun Wang, Yonghe Guo, Yitao Chen, Muhammad Nauvall Juliansyah, Nick Crabtree
Indonesian Petroleum Association
... image gathers (CIGs) in this pre-carbonate zone are great challenges for conventional tomography. Figure 7 shows the comparison of CIGs before...
2023
An automatic velocity picking method based on object detection
Ce Bian, Weifeng Geng, Ping Yang, Pengyuan Sun, Guiren Xue, Haikun Lin
International Meeting for Applied Geoscience and Energy (IMAGE)
... affected by human experience. By taking the advantages of artificial intelligence technology in the field of image processing, this paper designs...
2022
Streamlining subsurface insights: Single extrapolation for holistic Green's function generation
Hongwei Liu
International Meeting for Applied Geoscience and Energy (IMAGE)
... regions, poses a challenge when using offset domain common image gathers (ODCIGs) generated through traditional ray-based Kirchhoff prestack depth migration...
2024
Velocity model building assisted by potential field methods: A case study from the Red Sea
Wilson Ibanez, Federico Ceci, Giuseppe Bancala, Andrea Sirtori, Luciana De Luca, Miquel Marin, Vivian Robertson, Briseida Palacios, David Korte
International Meeting for Applied Geoscience and Energy (IMAGE)
... the residual in the gravity domain and improve the velocity model, resulting in better corrected migrated gathers and an enhanced seismic image...
2024
Compensating for Seismic Absorption for Orthogonal Shooting Field Data: A Case Study on NW Tunu Area, Indonesia
Doddy Iqbal Biramandita, Vishal Kumar, Wayne Zanussi, Jacques Bonnafe, Natalia Anggriani, Cepi M. Adam, Didiek Bhudy Prabowo
Indonesian Petroleum Association
... effect through ray tracing thereby making the stacks and gathers having more reliable amplitudes. Moreover, Q-PSDM also corrects for phase distortions...
2016
Cascaded full-waveform inversions to resolve Mesozoic structures in shallow-water Gulf of Mexico with limited-offset data
Wei Kang, Christoph Koeninger, Miguel Acosta Perez, Josue Jurado Ramirez, Imran Nagir, Denes Vigh, Silvino Dominguez Garcia, Alfredo Vazquez Cantu, Luis Arturo Vega, Marco Antonio Mayorga
International Meeting for Applied Geoscience and Energy (IMAGE)
... and carbonate geometries. Image gathers and sonic logs are used to examine the long- and short-wavelength component of the final model respectively...
2022
Modeling-based amplitude recovery (MBAR)
Yonghe Sun, Zhemin Tan, Jeff Nealon, James Davenport, Mark Fan, Yuli Zhang, Brian Church
International Meeting for Applied Geoscience and Energy (IMAGE)
... that MBAR can extend the usable angle ranges of common-image-point angle gathers by 5~15. Postmigration data conditioning tests show that MBAR can...
2022
Advances in Depth Imaging Technology: Rock Physics Guided Migration of Seismic Data in 3D
Nader C. Dutta, Sherman Yang, Jianchun Dai
Indonesian Petroleum Association
... imaging are heavily dependent upon “flattening of gathers” as the criterion. While this is necessary, it is not sufficient, in that it produces...
2012
Imaging of the Guando Field Colombia in Time and Depth
M.A. Hall, V. Avramovic, J.T. Basick, I. Novianti, D.T. Maucione, P.Kroshko, J.C. Garzon
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... a satisfactory seismic image to enable such interpretation requires pre-stack imaging. The geological complexity is such that post stack imaging fails...
2003
Getting it Right the First Time in the Ceduna Sub-Basin: Regional and Target Depth Imaging in a Frontier Setting
Weidi Koh
Australian Petroleum Production & Exploration Association (APPEA) Journal
... depth migration (PSDM) enables the fast generation of dense 3D common image point gathers (CIGs) with a high signal : noise ratio, rejection of non...
2017
Delineating Thin-Bed Tight Gas Sand Reservoir with Prestack Joint PP/PS Inversion, #41363 (2014)
Zhiwen Deng, Ming Qiang, Shuanghu Shi, Xiaofeng Liang, Yang Zhu, Yijun Zhou, Qingjia Tong
Search and Discovery.com
.... Conventional 3C velocity and image are generally computed in different time scales; PP wave is processed with PP time scale and PS wave with PS time scale. PP...
2014
Making Waves with Big Seismic Computing
Bill Shea
GEO ExPro Magazine
... much larger 3D datasets, using low-cost commodity computer servers. Pre-stack gathers, which capture a complete high-fidelity image of the Fostering...
2020