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Showing 1,704 Results. Searched 200,293 documents.
Abstract: Least Squares Pre-Stack Time Migration for Imaging and Reconstruction of Converted Waves; #90224 (2015)
Aaron Stanton
Search and Discovery.com
.... References Audebert, F., 2001, 3-D prestack depth migration: why Kirchhoff?: Technical Report 80, Stanford Exploration Project. Cary, P. W., and A. Zhang...
2015
Pre-Stack Imaging: Time or Depth? (Paper 25)
Carl Notfors, Peter Whiting, Geoff Mansfield
Geological Society of Malaysia (GSM)
... the results of conventional prestack time migration (using NMO, DMO and zero-offset migration) and pre-stack Kirchhoff time and depth migrations...
2000
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
...Abstracts: Application of CSP Gather Modeling for Determination of Velocity Smoothing Operator for Prestack Kirchhoff Depth Migration; #90173 (2015...
2015
Abstract: High-Resolution Prestack Sub-Basaltic Imaging, by A. Druzhinin and C. Macbeth; #90923 (1999)
Search and Discovery.com
1999
Beam Migration for Imaging of Complex Structures
Karl Schleicher, John Sherwood, Lynn Comeaux, Mazin Farouki
Indonesian Petroleum Association
... - Kirchhoff prestack time migration (left) and BPSDM (right) on Beaufort Sea data. The beam migration imaged steep and overturned events. Figure 2 - BPSDM...
2009
Abstract: Converted-Wave Prestack Time Migration with a New Approximate Migration Weight; #90224 (2015)
Chuck Ursenbach and Peter Cary
Search and Discovery.com
..., the weight for a 3D common-offset prestack Kirchhoff migration of PP data is z t s t r 1 1 v 2 t r t s t r...
2015
Abstract: Time Domain Least-squares Prestack Migration; #90172 (2014)
Ricardo C. Rebollo, Mauricio D. Sacchi
Search and Discovery.com
... followed by stacking. Figure 2. a) Prestack Kirchhoff migration. b) Un-regularized (minimum norm solution) prestack time least squares migration. 3...
2014
Abstract: Migration Velocity Analysis of Incomplete Data Using LSPSM CIGs; #90174 (2014)
Abdolnaser Yousefzadeh, John C. Bancroft, and Gary F. Margrave
Search and Discovery.com
... is probably the main advantage of the prestack Kirchhoff to the other methods of migration. However, incomplete data produce migration artifacts and give...
2014
A Comprehensive Approach to Depth Imaging in Thrust Belt Environments
Ron Schmid, Brian Link, Patrick Butler
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... model for 3D prestack depth migration. Application to a sparse 3D dataset from the Alberta Foothills indicate that we can begin to image under carbonate...
1997
Abstract: Imaging Scattered Seismic Energy in Alberta Oil Sands; #90187 (2014)
Andrew V. Barrett
Search and Discovery.com
... of the anisotropy and the curved raypaths of the depth-dependent velocity. Examples A prestack Kirchhoff time migration module which outputs a set...
2014
Depth Imaging Through Surface Carbonates: A 2D Example from the Canadian Rocky Mountains; #41554 (2015)
Yong Hua, Don Lawton
Search and Discovery.com
... in structurally complex environments such as the Canadian Rocky Mountains. Prestack depth migration (PSDM) is necessary to resolve complex structures...
2015
Abstract: Kirchhoff Imaging with Adaptive Greens Functions for Compensation for Dispersion, Attenuation, and Velocity Imprecision; #90187 (2014)
Andrew V. Barrett
Search and Discovery.com
... in this presentation is to modify the Green’s function within a Kirchhoff prestack migration by deriving an optimal matching operator between a previously derived...
2014
Abstract: Image Enhacement After Migration; #90174 (2014)
John C. Bancroft, Thais Guirigay, and Helen Isaac
Search and Discovery.com
... in the Hussar, Alberta area in 2011. A low-dell data set was processed with a prestack Kirchhoff migration using the EOM method and shown in Figure 3a...
2014
Abstract: Time-Lapse 3-D VSP Migration Imaging with Constraints in Lost Hills, California, by T. Nemeth, B. Cornish, J. Minear, W. Kempner, and R. Langan; #90911 (2000)
Search and Discovery.com
2000
Application of VTI PSDM for imaging carbonate structures
Seyed Yaser Moussavi Alashloo, Deva Ghosh, Yasir Bashir, Amir Babasafari
Geological Society of Malaysia (GSM)
... PETRONAS, 32610 Seri Iskandar, Malaysia *Corresponding author email address: [email protected] Introduction Prestack depth migration (PSDM...
2018
Accelerated Kirchhoff depth migration on CPU-GPU heterogeneous computing systems
Yujin Liu, Hongwei Liu, Yi He, Fuhao Qin, Yue Du
International Meeting for Applied Geoscience and Energy (IMAGE)
... prestack parallel Kirchhoff depth migration for imaging spaces: Proceedings of the Eighth International Conference on Grid and Cooperative Computing, 276...
2022
Abstract: Tilted Orthorhombic Imaging for full Azimuth Towed Streamer Data in Deep Water Gulf of Mexico, by Yunfeng (Fred) Li; #90167 (2013)
Search and Discovery.com
2013
Hybrid Domain Parallel Algorithm for 3D Kirchhoff Prestack Depth Migration; #10928 (2017)
Changhai Zhao, Jianlei Zhang, Guoan Luo, Quanshun Cui, Chengxiang Wang
Search and Discovery.com
...Hybrid Domain Parallel Algorithm for 3D Kirchhoff Prestack Depth Migration; #10928 (2017) Changhai Zhao, Jianlei Zhang, Guoan Luo, Quanshun Cui...
2017
Angle Gathers for Gaussian Beam Depth Migration, #41593 (2015).
Samuel Gray
Search and Discovery.com
... ([email protected]) Abstract Migrated common-image-gathers (CIG’s) are of central importance to prestack depth migration. They allow seismic velocity estimation...
2015
Abstract: 3D Seismic Imaging in the Pakistan Foothills: A Case History; #90172 (2014)
Victor Dolgov, Rob Vestrum, Jon Gittins, Géza Wittman
Search and Discovery.com
... and a refraction-statics solution, we calculated residual statics over the entire survey. Prestack time migration Kirchhoff prestack time migration...
2014
Abstract: Integrated Imaging of VSP and OBS Data in the Angle Domain; #90254 (2016)
Leon Hu
Search and Discovery.com
... features such as sand stringers. This paper illustrates a Kirchhoff-based prestack depth migration method for VSP and OBS data to produce angle domain...
2016
Abstract: Pre-Stack Depth Imaging in Complex Thrust-Belt Environment: A Case Study from Cohat Basin, Onshore Pakistan; #90319 (2018)
Hany M. Hussein, Mohamed Baioumy, Tamer Saleh, Olga Zdraveva, Moataz Soufy, Ghada Mohamed, Hossam Abdel Wahab, Sajid Mahmood, Muhammad Noor Asim, Shaukat Khan, Ivica Mihaljevic
Search and Discovery.com
... and irregularity, steep dips and strong velocity heterogeneity cause complex wave propagation and require advanced prestack depth migration (PSDM) to resolve. Key...
2018
Abstract: Complex-beam Migration: Non-recursive and Recursive Implementations; #90187 (2014)
Tianfei Zhu
Search and Discovery.com
... for marine prestack depth migration. Yet, for land data, the imaging method of choice is still Kirchhoff migration (KM), generally the least accurate...
2014
Abstract: Non-Hyperbolic Reflection Tomography for Better Imaging and Interpretation, by Zhaobo Meng and Chengbin Peng; #90105 (2010)
Search and Discovery.com
2010
High Performance Computation by Graphics Processor Unit Technology for Geophysical Seismic Signal Processing, #40727 (2011)
Sunjay Sunjay
Search and Discovery.com
...: Geophysics, v. 74, WA143. Yu, Z., G.A. McMechan, P.D. Anno, and J.F. Ferguson, 2004, Wavelet-transform-based prestack multiscale Kirchhoff migration...
2011