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The AAPG/Datapages Combined Publications Database
Showing 17,696 Results. Searched 200,357 documents.
Application of Advanced Depth Imaging Technology in Shallow Water Offshore Indonesia
Michael Gidding, Suyang Chen, Steven Wiseman, Moch Asrori, Richard Bolton
Indonesian Petroleum Association
... are picked from depth migrated common-image point (CIP) gathers and 3D ray tracing is used to derive an updated velocity model.Gridded tomography...
2012
Direct Hydrocarbon Indications Using Seismic Amplitude Variations with Offset
William J. Ostrander
AAPG Special Volumes
... for an encased layer having a Poisson's ratio of 0.4, as might be expected for a low-velocity shale or brine sand. DATA ANALYSIS Using today's conventionally...
1987
Pre
Search and Discovery.com
N/A
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)
... and correcting water velocity changes on 4D seismic datasets. Each sail line is migrated independently and Common Depth Point (CDP) gathers are output...
2022
A New Approach to Imaging and Pore Pressure Analysis in Depth Domain in Complex Geologic Areas: Use of Rock Physics Constrained Velocity Modeling and Reverse-Time Migration
Search and Discovery.com
N/A
Geomechanical and Geophysical Analysis of a Wattenberg Field through Wavefield Re-Datuming and Inversion
Jyoti Behura, Pete Smith, Oscar Quezada
Unconventional Resources Technology Conference (URTEC)
... inversion. Prior to amplitude inversion, we extract velocity parameters using semblance analysis. In order to honor reflection coefficient changes with offset...
2016
An Interpreters Guide to Successful Prestack Depth Imaging; #41544 (2015)
Rob A. Holt
Search and Discovery.com
.... During the project, the processor and interpreter should compare at each stage of velocity model building both migrated stacks and gathers to those output...
2015
Characterizing seismic anisotropy and AVO using walkaway VSP: Willow oilfield, Alaska
Manish Lal Khaitan, Ali Sayed, Shujaat Ali, Trey Wagner, Jonathan Scorer, Brett Wendt
International Meeting for Applied Geoscience and Energy (IMAGE)
..., and seismic velocity. Synthetic AVO response created using log data has commonly differed from the response observed on surface seismic AVO gathers...
2022
Abstract: A Comparison of Standard Migration with EOM for Hussar Data; #90174 (2014)
Thais A. Guirigay, John C. Bancroft, and J. Helen Isaac
Search and Discovery.com
... plot and therefore improve the resolution of velocity analysis over conventional common midpoint gathers. Introduction Migration is one of the most...
2014
Converted-Wave Prestack Time Imaging without using P-Wave
Search and Discovery.com
..., Calgary, AB [email protected] and Lei Wei CGGVeritas, Calgary, AB, Canada Summary In converted-wave processing, velocity analysis and CCP (common...
2013
What Are You Interpreting? Your Seismic Image Could Be Misleading You!
R. T. Newrick, E. P. Gomez, J. K. Pullishy, S. D. Jensen, J. M. de Armas
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... 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...
2006
Joint data and physics model driven full-waveform inversion using CMP gathers and well-logging data
Shuliang Wu, Jianhua Geng
International Meeting for Applied Geoscience and Energy (IMAGE)
... framework, which uses well-logging data, pseudo labels produced from conventional FWI and common mid-point (CMP) gathers to train neural network. Neural...
2023
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
... analysis, such as full waveform inversion (FWI), require starting from a good initial estimate of the velocity model to enable local minimization...
2018
3D Model-Driven Subsurface QC of 4D Acquisition
Andrew Long, Bingwen Du, Barbara Kajl
Petroleum Exploration Society of Australia (PESA)
... model derived from a PSDM exercise (Figure 1) is used for 3D ray t racing, wherein the common reflection point (CRP) coverage (the 'tru e subsurface...
2002
Joint Anisotropic Parameter Inversion Based on Nonhyperbolic Moveout and Azimuthal Amplitude Variance
Fangyu Li, Jie Qi, Bin Lyu, Kurt J. Marfurt
Unconventional Resources Technology Conference (URTEC)
... variations. Previous studies on seismic anisotropy focus either only on either HTI or VTI. For HTI analysis, usually only near or middle offset gathers...
2016
Abstract: Processing Challenges and Technologies of Ocean Bottom Node Survey; #90319 (2018)
Ahmed A. Alghamdi, Huang Mingzhong, Saud Aldeghaither, Constantinos Tsingas, Mamadou S. Diallo, Bader Alqarni
Search and Discovery.com
... are on seabed. After wavefield separation, the down-going dataset is binned to its common reflection point (CRP) and is redatumed to the mean sea level...
2018
Abstract: OBN Interferometry for Velocity Model Building in a Challenging Salt Context from Barents Sea; #91204 (2023)
Guillaume Henin, Sujith Swaminadhan, Loic Janot, Sylvain Masclet
Search and Discovery.com
... the salt flank contrast, reducing the need of a-priori in the initial velocity model. FWI was then carried on using active seismic data starting from...
2023
Abstract: A Simple and Practical Way to Interpolate Sparse Velocity along Structures; #90319 (2018)
Lei Cao, Tong W. Fei, Xu Ji, Yi Luo
Search and Discovery.com
... information. Finally, the 3D velocity cube is fully populated by using the point-to-point division of the smoothed velocity using the mask. Our structure...
2018
Non-First-Break Solution for Shallow Velocity Anomaly Problem; #41602 (2015)
Emil Blias
Search and Discovery.com
... velocity analysis. We see large lateral stacking velocity fluctuations increasing with depth. An initial shallow velocity model was built, using...
2015
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
All that wobbles isnt necessarily azimuthal anisotropy
Helen Debenham, Jennifer Badry, Mohamed Megebry
Petroleum Exploration Society of Australia (PESA)
... the pre-migration phase of the seismic processing the data was sorted to “snail” gathers for QC. These are common mid-point gathers where the traces...
2019
Application of Zero Offset 2D CRS-Stack Method for Low Fold Data: Synthetic and Real Data Examples
R. Sule, A. Hendriyana, P. D. Anggraini, Fatkhan, Alfian, Sardjito, Waluyo, Adriansyah
Indonesian Petroleum Association
... Marchetti, A. Cristini, dan G. Cardone, 2002, 3D common-reflection-surface Mann et. al, 2001, Common-Reflection-Surface Stack, Workshop on velocity model...
2009
3D surface-consistent residual statics estimation by deep learning
Han Wang, Jie Zhang
International Meeting for Applied Geoscience and Energy (IMAGE)
... surface-consistent residual statics directly from 3D common midpoint (CMP) gathers based on continuity of reflection. CMP gathers of 3D reflections...
2022
A Southern North Sea Multi-Survey preSDM using Hybrid Gridded Tomography, #41592 (2015).
Ian Jones, Emma Evans, Darren Judd, Alan Campbell, Steve Elam
Search and Discovery.com
... vertical velocity contrasts. In these iterations, an additional step was performed: d) Using the updated velocity from the previous tomographic update (c...
2015
-- no title --
user
Search and Discovery.com
... on the resultant interval velocity, meaningful geologic interval velocity models are constructed. The automatic process is detailed using real and synthetic...
Unknown