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Showing 19,412 Results. Searched 200,756 documents.
Abstract: 3D Localized Prestack Depth Migration from Workstations, by Xiaomin Zhao, Jianming Sheng, Ying Hu, and Chengbin Peng; #90105 (2010)
Search and Discovery.com
2010
ABSTRACT: Improved Seismic Imaging Methods for More Accurate Interpretation and Attributes, by Peter Whiting, Carl Notfors, and Geoff Mansfield; #90913(2000).
Search and Discovery.com
2000
Abstract: Target-Oriented Imaging for Continous Seismic Reservoir Monitoring; #90319 (2018)
Hongwei Liu, Mustafa Al-Ali
Search and Discovery.com
.... The stacked image could be derived by stacking of the DTS gathers generated using the final focusing operators. We use CFP technology for the first time...
2018
Abstract: Leveraging an Innovative Fast Parallel Sorting Algorithm for Efficient Seismic Imaging; #91204 (2023)
Mufeed AlMatar, Saleh Aldossary
Search and Discovery.com
... is an integral and essential part of seismic processing. The ability to sort seismic data traces in a specific domain (e.g. Common Image Gathers...
2023
Removal of Surface and Internal Multiples from Land Data: Experience from North Africa Data
Search and Discovery.com
N/A
Investigation of the Behavior of Surface Noise within Seismic Arrays of Variable Geophone Density
Search and Discovery.com
N/A
3D velocity model building based upon hybrid neural network
Herurisa Rusmanugroho, Junxiao Li, M. Daniel Davis Muhammed, Jian Sun
International Meeting for Applied Geoscience and Energy (IMAGE)
... deep neural network (DNN). Instead of using raw shot gathers, the semblance feature extracted from the common-midpoint (CMP) gathers is used...
2022
Water column corrections: Joint water velocity inversion for 4D marine surveys
Didier Lecerf, Mathieu Lange, Andrew Oates, Jyoti Kumar
International Meeting for Applied Geoscience and Energy (IMAGE)
... lines pair. It creates water bottom “cross-image CDP gathers”. The cross-image CDP curvature along offsets is used to compute the water velocity...
2022
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
... arrivals. SWIM image gathers were used to validate the longer wavelength features not seen by FWI. The additional illumination provided by * ** PGS...
2014
Seismic diffractions separation and imaging based on convolutional neural network
Jiaxing Sun, Jidong Yang, Zhenchun Li, Jianping Huang, Jie Xu
International Meeting for Applied Geoscience and Energy (IMAGE)
... characteristics in the dip-angle common-image gathers (DACIGs), which provides us an opportunity to extract diffractions. In this study, we present an efficient...
2022
Automated velocity model building using Fourier neural operators
Guanghui Huang, Sean Crawley, Ramzi Djebbi, Jaime Ramos-Martinez, Nizar Chemingui
International Meeting for Applied Geoscience and Energy (IMAGE)
... of the image gathers is almost perfect through all depths. FIELD DATA INFERENCE The third step in our workflow is the inference on field data...
2023
Automated Early-Arrival Travel Time Tomography Using Full-Azimuth, Long-Offset Dual Coil Data in U.S. Deepwater Gulf of Mexico
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N/A
Abstract: Channel Delineation in the Lower Wilcox Formation, Southeastern Texas: Integrated Seismic Data, Well Logs, and Modeling; #91205 (2023)
Robert V. Schneider and Michael E. Ellis
Search and Discovery.com
... for this survey were modified to satisfy environmental regulations at the project site. The resulting volume yielded prestack gathers that were of varying near...
2023
Abstract: Integrated Imaging of VSP and OBS Data in the Angle Domain; #90254 (2016)
Leon Hu
Search and Discovery.com
... common image gathers (ADCIGs). To integrate VSP and OBS depth images in a seamless fashion, a post-migration processing workflow was applied to blend two...
2016
Abstract: Subsalt Velocity Estimation Using Wave-Equation Tomography with Surface Offset Gathers; #90319 (2018)
Yujin Liu, Yan Wu, Xiongwen Wang, Tong W. Fei, Yi Luo
Search and Discovery.com
... twofold. Firstly, it’s very difficult to extract reliable residual moveout (RMO) information in pre-stack common image gathers (CIGs). Secondly...
2018
Subsalt Imaging: An Integrated Approach to Image Improvement of Vintage Data, #42076 (2017).
Evans Owah, Christian Rivera, Marjolaine Lahmi, Michel Courbe
Search and Discovery.com
... leading to an improved final migrated subsalt image. The final image using reverse time migration3 (RTM) with surface offset gathers, benefitting...
2017
Abstracts: Application of CSP Gather Modeling for Determination of Velocity Smoothing Operator for Prestack Kirchhoff Depth Migration; #90173 (2015)
Hassan Khaniani and John C. Bancroft
Search and Discovery.com
... Migration (EOM) that is a time migration method. In this direction, the techniques for CSP gathers modeling by ray tracing method are explained. Using...
2015
Abstract: Seismic Imaging of Imbricate Structures in Mountainous Area: Case Studies; #90211 (2015)
Nanxun Dai, Oz Yilmaz, Weizhong Wang, and Jie Zhang
Search and Discovery.com
... to common-reflector gathers (CRP) in depth (one type of image gathers), and stack the CRP gathers to obtain the image in depth (Figure 3). Datapages...
2015
A depth uncertainty estimation system with prestack seismic data
Huafeng Liu, Andrey H. Shabelansky, Jinsong Chen, Min Yang, Cory J. Hoelting, Ying Tan
International Meeting for Applied Geoscience and Energy (IMAGE)
...eismic image, models and corresponding gathers in a synthetic case. The reference model is a model derived from an initial model using tomography. Trial ...
2022
Abstract: What are you Interpreting? Is your Seismic Image Flawed?; #90211 (2015)
Rachel Newrick, Jim Pullishy, and Elvira Gomez
Search and Discovery.com
... and be confident that all criteria for a robust velocity model and image are met. Ask yourself a few critical questions. Are the common image gathers flat...
2015
Q tomography workflow: Land case study in the Eagle Ford Play
Itai Sharabi, Matan Shustak, Orly Kletenik-Edelman, Ronit Levy, Zvi Koren
International Meeting for Applied Geoscience and Energy (IMAGE)
..., full-azimuth, angle domain common image gathers. The obtained image gathers are then directly used as input to a novel Q-Tomography, formulated...
2023
Research and application of diffraction imaging based on the full-azimuth angle migration
Shengtao Zang, Xingrong Xu, Zhe Yang, Yanxiang Wang, Jiaqing Sun
International Meeting for Applied Geoscience and Energy (IMAGE)
...: Part 1— Directional and reflection image gathers: Geophysics, 76, no. 1, S1–S13, doi: https://doi.org/10.1190/1.3511352. Ravve, I., and Z. Koren, 2011...
2024
Sparse Layer Inversion for Prestack Seismic Reservoir Characterization
Raisya Noor Pertiwi, Muhammad Alwi, Herlan Setiadi, Khairul Ummah
Indonesian Petroleum Association
... workflows are based on 2D seismic angle gathers and one well. The post-data conditioning is also accounted to improve the degree of reliability...
2016
Abstract: Time Domain Least-squares Prestack Migration; #90172 (2014)
Ricardo C. Rebollo, Mauricio D. Sacchi
Search and Discovery.com
... features on the desired seismic image. For instance, smoothness in the structural image or in the prestack image gathers can be imposed in order...
2014
An Interpreters Guide to Successful Prestack Depth Imaging; #41544 (2015)
Rob A. Holt
Search and Discovery.com
... be evaluated by QC of final migrated gathers, the quality of the final stack image, and by the accuracy of the well ties. Introduction Over the last three...
2015