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The AAPG/Datapages Combined Publications Database
Showing 17,709 Results. Searched 200,663 documents.
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
Abstract: Kirchhoff Prestack Time Migration with Angle Domain Common Image Gathers; #90174 (2014)
Jianhua Pan, Robert Tilson, Gerry Schlosser, and Elvis Floreani
Search and Discovery.com
... common image gathers are commonly used for migration velocity analysis and AVO studies. However, recent works show that more benefits could...
2014
High Resolution, Super Efficient Wide Azimuth Beam Tomography for Velocity Model Building
Search and Discovery.com
N/A
Unlocking Value from Vintage Seismic Processing - Pre-stack Conditioning and Inversion in the Eagle Ford Shale
Andrew Munoz, Bill Shea
Unconventional Resources Technology Conference (URTEC)
... that by using a pre-stack conditioning workflow on migrated offset gathers, we can substantially improve a 15-survey merge that has an antiquated processing flow...
2020
Gaining Insight into Formation Anisotropy Using Full Azimuth Imaging and Analysis Tools
Duane Dopkin, Anat Canning, Philip Neri
Indonesian Petroleum Association
... azimuth (AVAZ) analysis. AVAZ requires ‘flattened’ gathers. The preferred approach creates full azimuth angle gathers in depth, using a rich...
2012
Abstract: Simplified Processing of Converted Wave Data; #90224 (2015)
John C. Bancroft and Thais Guirigay
Search and Discovery.com
... to these gathers based on the converted wave geometry.) The converted reflection data in these gathers tend to be hyperbolic and velocity analysis...
2015
Impact of Velocity Field on AVA Analysis; #42363 (2019)
Ritesh Kumar Sharma, Satinder Chopra
Search and Discovery.com
... obtained using (a) seismic, and (b) well-driven velocity, overlain on two offset-gathers. A segment of the velocity field around the location of the gathers...
2019
Application of phase stabilization Q migration in comprehensive evaluation and identification of tight-reservoir
Yi Bao, Hai-Bo Zhao, Xu Liu, Xiao-Wei Guan, Xin-Yue Song, Cheng Wang, Zai-Jin Zhang
International Meeting for Applied Geoscience and Energy (IMAGE)
... reflection point) CRP gathers. The spatial distribution of gas-bearing sand bodies is clearly identified by applying a machine learning-based facies...
2024
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
Prestack Depth Migration for "Easy" Unconventional Plays?, #41056 (2012)
Morgan Brown
Search and Discovery.com
..., reflector dip and/or velocity variation render the conversion of surface offset or surface source/receiver azimuth to true reflection angle ambiguous...
2012
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
A decoupled orthotropic anisotropy modeling method and its application
Wang Lei, Liang Jiandong, Xuan Ruiqing, Li Daoshan, Zhu Jinping, Hao Xiaoguang
International Meeting for Applied Geoscience and Energy (IMAGE)
... are updated through the residual curvature analysis of the azimuthal CIP gathers, and the ellipse fitting is used to drive the updating of the orthotropic...
2023
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
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
Abstract: Robust Methods of Multistep Velocity Analysis, by S. Katz; #91009 (1991)
Search and Discovery.com
1991
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
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
Computation of phase velocity direction using normalized wavefields
Kwangjin Yoon, Jungkyun Hyun
International Meeting for Applied Geoscience and Energy (IMAGE)
... Amplitudes of acoustic RTMs appear larger than elastic RTMs at large reflection angles. Second, we generate RTM angle gathers with the 2D BPTTI veloci...
2024
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
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
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