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The AAPG/Datapages Combined Publications Database
Showing 660 Results. Searched 195,387 documents.
7.0 The Structural Significance of Seismic Velocity - A Progress Report
P. E. Gretener
AAPG Special Volumes
... of CDP SHOOTING demanding large offsets as a matter of routine. It has thus become possible to determine seismic velocity using normal moveout (NMO...
1981
A Comparative Study of Wave Equation Multiple Suppression to Conventional Tau-p Deconvolution and Radon Multiple Attenuation Methods
Kriyanti Setiyono, Ken H. Matson
Indonesian Petroleum Association
... prior to the stacking process. Radon Radon demultiple exploits differential moveout to discriminate between multiples and primary events. Initially...
2000
Fault Interpretation Problems in the Southeast Barrow Sub-Basin
R. K. Whyte
Petroleum Exploration Society of Australia (PESA)
... 13b shows the corresponding COP gather. This is a simple geological situation with no lateral velocity variation. The moveout curve is smooth...
1994
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
... optimised velocity model building (VMB) workflow improved turnaround time while, at the same time, being amplitude versus offset (AVO) compliant. Third...
2017
Pore-Pressure Prediction in the Permian Basin Using Seismic Prestack Inversion
Colin Sayers, Lennert den Boer
Unconventional Resources Technology Conference (URTEC)
.... In such reservoirs, changes in lithology occur over vertical depth intervals too small to be resolved using seismic velocities derived by means of normal moveout...
2019
Understanding the causes of low frequency shadow below gas hydrates
Ayman Noor M. Qadrouh, Saad Alajmi
Petroleum Exploration Society of Australia (PESA)
... causes of LFS are the presence of free gas or normal moveout (NMO) stretching. In order to have a deep understanding of the low frequency shadow causes...
2019
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
...Abstract: Subsalt Velocity Estimation Using Wave-Equation Tomography with Surface Offset Gathers; #90319 (2018) Yujin Liu, Yan Wu, Xiongwen Wang...
2018
Abstract: Salt Shape Tomography; #90254 (2016)
Patrice Guillaume, Olivier Hermant, Stanislaw Warzocha
Search and Discovery.com
... at their boundaries with surrounding media. The data to invert mainly consists of residual moveout (RMO) information picked below the strong velocity...
2016
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
... is the application of a simplified Kirchhoff migration on the CSP, that consists of scaling, filtering, normal moveout (NMO) and stacking. CSP gathers...
2014
Long-Offset Approximations to NMO Function for a Layered Subsurface
E. Blias
Search and Discovery.com
.../depth ratio. Conventional velocity analysis uses hyperbolic approximation for the reflection traveltimes: t( x) 2 T02 x 2 VRMS (1) Here T0...
Unknown
Long-Offset Approximations to NMO Function for a Layered Subsurface
E. Blias
Search and Discovery.com
.../depth ratio. Conventional velocity analysis uses hyperbolic approximation for the reflection traveltimes: t( x) 2 T02 x 2 VRMS (1) Here T0...
Unknown
High Performance Computation by Graphics Processor Unit Technology for Geophysical Seismic Signal Processing, #40727 (2011)
Sunjay Sunjay
Search and Discovery.com
... filtering would help, or maybe it needs a minor velocity tweak and a test of the stacking parameters to optimize the poststack trace or improve AVO...
2011
The Geophysicist Communicating with Seismic Processing
R. E. Sheriff
Southeast Asia Petroleum Exploration Society (SEAPEX)
... indicate the semblance for various stacking velocity values as a function of arrival time. The graphs at the top show the output amplitude...
1980
Simultaneous 3D 4C - OBC & VSP Walkaway Survey in the Attaka Field, East Kalimantan, Indonesia
Bill Borland, Phil Johnston, Mike Reblin, Suta Vijaya, Omar Kulbrandstad, Muhammad Idrees, Scott Leaney, Jan van de Mortel
Indonesian Petroleum Association
... data was acquired to determine the shear wave velocity structure in the area. This included a 3D VSP acquisition which was done simultaneously...
2000
How to Improve the Definition of Seismic Reflection Data
D. Michon, R. Garotta
Indonesian Petroleum Association
... to the normal moveout. Fig. 2. Let us consider a one second two-way time reflection. For a few offsets the apparent horizontal velocity, as given by the slope...
1979
Current Trends in Geophysics
H. E. Stommel, J. M. Graul
Indonesian Petroleum Association
... of in this connection, wave equation processing is by no means limited to this important concept. Improved velocity estimates, stacking procedures, coherency...
1978
Abstract: Fractures Detection Using Multi-Azimuth Diffractions Focusing Measure: A Feasibility Study from the Arab D Reservoir, by Abdulfattah A. Aldajani and Sergey Fomel; #90105 (2010)
Search and Discovery.com
2010
Abstract: Estimation of Group Velocity using Slant Stack Generalized S Transform Based Method; #90174 (2014)
Roohollah Askari, Robert J. Ferguson, and Kristof DeMeersman
Search and Discovery.com
...Abstract: Estimation of Group Velocity using Slant Stack Generalized S Transform Based Method; #90174 (2014) Roohollah Askari, Robert J. Ferguson...
2014
Large-Scale Pore Pressure Prediction After Pre-Stack Depth Migration in the Caspian Sea (Geophysics Paper 24)
Norbert van de Coevering, Hazim Hameed Al-Dabagh, Liau Min Hoe, Tony Jolly
Geological Society of Malaysia (GSM)
... with a 2nd order stacking velocity correction. Such an automated velocity analysis was performed using a grid of 8 Inlines x 8 Crosslines (100 m x 100 m...
2008
G. Non-Normal Incidence Reflections and the Determination of Lithology - Use of Shear Waves and Amplitude with Offset
Norman S. Neidell
AAPG Special Volumes
... the compressional velocity arriving at the same time and exists at moderate offsets. Compressional modeling would therefore be unable to match the moveout...
1987
Abstract: First-Arrival TomoStatics and Residual Statics for Near-Surface Corrections; #90211 (2015)
Jie Zhang, Oz Yilmaz, and Nanxun Dai
Search and Discovery.com
... intermediate datum, and then back to a floating datum with a constant replacement velocity. We shall then apply the tomostatics to the far-offset...
2015
Abstract: Anisotropic Depth Imaging and Interpretation in Thrust-Belt Exploration, by Don Lawton; #90073 (2007)
Search and Discovery.com
2007
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
... information and dense residual moveout (RMO) information to produce an accurate velocity update for the deep section. The imaging uplift brought...
2023
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)
..., we aim to extract rock properties derived from AVO, velocity, and attenuation analyses that play key roles in the characterization and development...
2016
2D Survey Earth Model Building and Depth Imaging Using 3D Grid-Based Tomography Technology
Eric Pearson, Suyang Chen
Indonesian Petroleum Association
... direction). In this area, the geologic structure and associated seismic velocity model are extremely complex. In order to achieve the best possible...
2012