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The AAPG/Datapages Combined Publications Database
Showing 33,118 Results. Searched 200,293 documents.
Arafura Sea Seismic Processing: Importance of Iterating Velocity Analysis and Integrating Regional Geology to Counter Signal Masking by Major Unconformities
Rahadian Adhyaksawan, Paulus T. Allo, Maria Raharja, Muhammad Isjmiradi, Mark Boyd
Indonesian Petroleum Association
...Arafura Sea Seismic Processing: Importance of Iterating Velocity Analysis and Integrating Regional Geology to Counter Signal Masking by Major...
2010
Imaging and fold comparison of mirror reverse time migration vs. interferometric imaging for VSP data
Liwei Cheng, James Simmons, Ali Tura
International Meeting for Applied Geoscience and Energy (IMAGE)
... of the different methods to the migration velocity model. When the exact velocity model is used, mirror RTM with both upand down-going wavefields...
2022
Seismic Velocity Model Building in an Area of Complex Geology, Southern Alberta, Canada
Helen Isaac and Don Lawton
Search and Discovery.com
... sections, near-surface velocity models from refraction statics analysis, averaged sonic interval velocities and limited migration velocity analysis...
2009
Joint velocity and event location inversion workflow in microseismic reservoir monitoring
Takashi Mizuno, Joel Le Calvez, Manish Lal Khaitan, Giulia Barisione, Irina-Tulia Stoia, Prakash Ranjan, Stefano Clerico, Xinyuan Li, Zheyuan Huang
International Meeting for Applied Geoscience and Energy (IMAGE)
... step, we build the velocity model from the sonic log following upscaling to the seismic scale, and then we perform a migration-based event location...
2022
Abstract: DREAM™ - Drilling and Real Time Migration: A New Method for the Geophysical Monitoring of Wells
Luca Bertelli, Luca Savini, and Luca Aleotti
Houston Geological Society Bulletin
... update the velocity field while drilling, and thus to refine the depth model and iterate the depth migration. The seismic velocities obtained...
1996
Anisotropic Depth Migration Applied in an Area of the Colombian Llanos Foothills as a Tool for Understanding the Structure in Depth
Isabel Cristina Florez, Rob Vestrum
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
..., J., Lines, L. and Gray, S., 1998, Smiles and frowns in migration/velocity analysis: Geophysics, Soc. of Expl. Geophys., 63, 1200-1209. Lawton, D.C....
2006
Reveal The Velocity Anomalies in Complex Overburden and Enhanced The Imaging through Shallow Gas: A Case Study in SisiNubi Mahakam, Indonesia
Annas Astuti, Yohanes Kristomo, Bee Jik Lim, Ginanjar Satria, Natalia Anggriani
Indonesian Petroleum Association
... and reimaging the existing legacy data with Q prestack Kirchhoff depth migration performed in 2011 and 2014 did not accurately model the sharp velocity...
2019
Abstract: Modelling and migration of Hibernia seismic data
Irene Kelly, Phil Bording, Andrew Burton, Larry Lines
Atlantic Geology
... migrations by leastsquares inversion of layer depths to formation tops. This use of migration and inversion also allows for velocity sensitivity analysis...
1997
Identification of Lateral Facies Trends Using Seismic and Well Velocity Data, South Lokichar Basin Kenya
Search and Discovery.com
N/A
Sensitivity analysis of acoustic waveform inversion to velocity anomalies in the near-surface using the Frchet derivative
Ao Cai, Colin A. Zelt
International Meeting for Applied Geoscience and Energy (IMAGE)
...Sensitivity analysis of acoustic waveform inversion to velocity anomalies in the near-surface using the Frchet derivative Ao Cai, Colin A. Zelt...
2022
Anisotropic depth migration in the Colombian Llanos Foothills as a key to understanding the structure in depth
emamedov
Search and Discovery.com
... in migration/velocity analysis: Geophysics, v. 63, p. 1200-1209. Anisotropic depth migration in the Colombian Llanos Foothills as a key to understanding...
Unknown
ABSTRACT: RTM Guided Migration Velocity Analysis: A West Africa Case History
Search and Discovery.com
N/A
Integrated Full Waveform Inversion and Dip Constrained Tomography for Complex Carbonate Imaging - Case Study from Indonesia
Yonghe Guo, Jun Wang, Pongga Wardaya, Riaz Alai, M Afiq B Mokhtar, Rizki Krishna Pratama, Haryono Haryanto
Indonesian Petroleum Association
... migration velocity in which the lateral velocity variation wavelength should be bigger than the maximum offset of useable reflection energy...
2018
Abstract: Seismic Subsalt Imaging in a Complex Salt Basin; #90254 (2016)
Ricardo Bertolotti, Pedro Baptista, Alastair Beach, Radmila Tatalovic, John Aitken, Adnan O. Bu Fateem, Khalfan Almansoori
Search and Discovery.com
... processing result it is important to have a thorough understanding of the geology to constrain the velocity analysis during the data processing. Consequently...
2016
From Field Tapes to 3D Depth Volume in 2 Months
Search and Discovery.com
N/A
Pre-Stack Imaging: Time or Depth? (Paper 25)
Carl Notfors, Peter Whiting, Geoff Mansfield
Geological Society of Malaysia (GSM)
... the synthetic velocity model contained no lateral velocity variations. The time migration algorithm assumes that the velocity field is locally laterally...
2000
Seismic Velocities, by D.S. MacPherson, #40150 (2005).
Search and Discovery.com
2005
Volume-constrain first arrival tomography based near surface modeling and its application
Naijian Wang, Zhihui Yan, Qingpo Ma, Wei Wu, Yunfei Zu, Yonggui Hu
International Meeting for Applied Geoscience and Energy (IMAGE)
... migration imaging. And first arrival travel-time tomography with near-surface data constraints is a common method to establish near-surface velocity model...
2022
Abstracts: Near-surface Velocity Model Building and Statics in Permafrost Regions; #90173 (2015)
Tianfei Zhu, Yan Yan, and Jon Downton
Search and Discovery.com
... this as an initial model for residual curvature analysis (Zhou, et al., 2003). Prestack depth migration was then performed using the final model from this reflection...
2015
Enhanced ray-based tomography method
Jonathan Liu
International Meeting for Applied Geoscience and Energy (IMAGE)
... to QC a velocity update. In addition, the flatness of the pseudo migration gathers also tells how reliable the RMO picks are. With equations (4) and (5...
2024
High Resolution, Super Efficient Wide Azimuth Beam Tomography for Velocity Model Building
Search and Discovery.com
N/A
Abstract: TTI Anisotropic Depth Migration: Which Tilt Estimate Should We Use?; #90211 (2015)
Francois Audebert and Volker Dirks
Search and Discovery.com
... emulate here the real situation, where we have to first perform a velocity analysis, accounting for the apparent Vnmo, and second, perform a migration...
2015
Abstract: Depth Migration of Long Offsets for Sub-Basalt Imaging at the Faroe Islands, by S. Checkles, F. Qin, and R. Owens; #90923 (1999)
Search and Discovery.com
1999
Improved Structural Imaging of the Karama Seismic Survey Using Anisotropy Kirchhoff and Beam Depth Migration
Zbigniew Ostapiuk, Bee Jik Lim, Martin Bayly
Indonesian Petroleum Association
...) fields were derived from the seismic data alone. These interval properties were derived using interactive velocity analysis with a 1D ray traced...
2012
Near Surface Imaging using Joint Seismic Gravity Inversion
Teguh Suroso, Boko Nurdiyanto, Trilaksita B. Nugraha, Lita Novitasari, Heri Winarto
Indonesian Petroleum Association
.... Velocity Analysis Velocity analysis was performed on seismic gathers using a range of constant velocities. The resulting constant velocity migration...
2019