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The AAPG/Datapages Combined Publications Database
Showing 16,560 Results. Searched 195,372 documents.
Pre-Stack Seismic Data Analysis with 3D Visualization A Case Study; #41546 (2015)
Yongyi Li, Josh Feng, Maggie Jiao
Search and Discovery.com
... ratio. 3D Visualization of Attributes with Gathers We present a method to analyze CMP gathers using a pseudo 3D formed by CMP gathers in which...
2015
How Reliable Is The Negative Anisotropy In Carbonate Rocks? - Offshore East Java Basin Case Study
Jun Wang, Yonghe Guo, Pongga Wardaya, M Afiq B Mokhtar, Riaz Alai, Rizki Krishna Pratama, Haryono Haryanto
Indonesian Petroleum Association
... for Thomsen parameter delta in carbonate zones. The common image gathers (CIG) at the well locations show downward curvature when exact well velocity...
2018
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
Yesterday, Today, and Tomorrow in Seismic Exploration
Emil J. Mateker, Jr.
GCAGS Transactions
..., a geologic section emerges. VELOCITY FROM COMMON-REFLECTION-POINT DATA It has long been known that seismic reflection data recorded at different...
1970
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
... for the ray based depth migrations. However, for our analysis, we selected a scatter point located at (5500, 2450) m coordination of the Marmousi velocity...
2015
Abstract: Non-Hyperbolic Reflection Tomography for Better Imaging and Interpretation, by Zhaobo Meng and Chengbin Peng; #90105 (2010)
Search and Discovery.com
2010
EXTENDED ABSTRACT: Applications of Wave Imaging Technologies to Improve Deep Gulf Prospecting
Morgan P. Brown, Joseph H. Higginbotham, Cosmin Macesanu, Oscar E. Ramirez
GCAGS Transactions
... depth migration (PSDM), limitations in computer resources meant that PSDM was reserved for the final run, with velocity analysis using time migration...
2010
Abstract: Robust Methods of Multistep Velocity Analysis, by S. Katz; #91009 (1991)
Search and Discovery.com
1991
PSDM for Unconventional Reservoirs? A Niobrara Shale Case Study; #80392 (2014)
Morgan P. Brown
Search and Discovery.com
... to justify anisotropic PSDM. Azimuthal velocity analysis using Wave Equation PSDM (WEM) azimuth angle gathers indicates a very weak level of overburden...
2014
Utilizing Full Waveform Inversion to Improve Reservoir Imaging and Inversion in East Breaks, Gulf of Mexico
Search and Discovery.com
N/A
Automated Early-Arrival Travel Time Tomography Using Full-Azimuth, Long-Offset Dual Coil Data in U.S. Deepwater Gulf of Mexico
Search and Discovery.com
N/A
Pre-Stack Calibration to Well Data: Intercept & Gradient Scaling A Case Study From the Norwegian North Sea
Nguyen Nam, Larry Fink
Indonesian Petroleum Association
... Calibration is the key to successful amplitude vs. offset (AVO) analysis to identify fluid and lithology changes using prestack seismic data. A common...
2007
Abstract: 2D Depth Velocity Analysis without Tomography; #90187 (2014)
J. Patrick Butler and Randy Kolesar
Search and Discovery.com
... angle of reflection on the segment. These traces can then be combined to form common offset gathers. Velocity can be scanned in any zone...
2014
Abstract: An Analysis of the Benefits of 3D Pre-Stack Time Migration (Paper 11)
Peter Whiting
Geological Society of Malaysia (GSM)
... is applied, after which the NMO velocities are refined. This is done because DMO (even though it is applied using only an approximate velocity) removes...
1996
Improvement of inverse scattering angle-domain common image gathers using optical flow
Ammir A. Karsou, Sérgio L. E. F. da Silva, Felipe V. Capuzzo, Felipe T. Costa, Jorge Lopez, Roger M. Moreira, Marco Cetale
International Meeting for Applied Geoscience and Energy (IMAGE)
...Improvement of inverse scattering angle-domain common image gathers using optical flow Ammir A. Karsou, Sérgio L. E. F. da Silva, Felipe V. Capuzzo...
2023
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
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
Pre
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
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
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
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
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