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The AAPG/Datapages Combined Publications Database
Showing 17,709 Results. Searched 200,663 documents.
NMO Application in VTI Media: Effective and Intrinsic Eta (Geophysics Paper 6)
Joel Starr, Maz Farouki
Geological Society of Malaysia (GSM)
... was performed on the same data using equation (5). Figure 1 shows a stack of the TAPSTM gathers generated from the velocity analysis using the Alkhalifah equation...
2008
Abstract: Static Corrections Via Raypath Interferometry: Recent Field Experience; #90224 (2015)
David C. Henley
Search and Discovery.com
... of velocity, the RT traces are then sorted by velocity and surface location to form ‘common-raypath-parameter’ gathers (comparable to commonoffset...
2015
Abstract: Improved PSDM Imaging Workflow by Integrating Near Surface and Well Velocities; #90319 (2018)
Duryodhan Epili, Hani Alzharani, Adam J. Fox, Luke LaFreniere
Search and Discovery.com
... are not adequate for building the shallow part of the velocity model, we use continuous azimuth-angle gathers instead. The resulting velocity model is seamed...
2018
ABSTRACT Pore Pressure Prediction Based on High Resolution Velocity Inversion in Carbonate Rocks Offshore Sirte Basin - Libya, #90104 (2010)
Gruenwald Robert M.; Buitrago Javier; Dessay Jack; Huffman Alan; Moreno Carlos; Gonzalez Munoz Jose Maria
Search and Discovery.com
...., Houston, TX. ResidualTM velocity analysis was employed to refine the input gathers and velocity field for pressure prediction in Cretaceous...
2010
Shallow Velocity Model Building Considerations for Prestack Depth Migration in Unconventionals
Mike Perz, Josef Heim, Candace Bruins
Unconventional Resources Technology Conference (URTEC)
... field constructed using deep interval velocity information extracted from a seismic survey in the area. A set of synthetic reflection horizons...
2019
GeoMind: An intelligent earth model building tool
Saleh Al Saleh, Ewenet Gashawbeza, Mustafa Marzooq, Hussam Banaja, Husain Al Shakhs, Jianwu Jiao
International Meeting for Applied Geoscience and Energy (IMAGE)
... of the model contains the primary wave velocity (Vp), secondary wave velocity (Vs) and density. 3. Simulating the seismic response of each GANNs model using...
2022
Imaging Complex Structures in Colombia Full Wave Equation Migration Approach
Hector A. Alfonso, Luis E. Rojas, Weizhong Wang, Jie Zhang, Oz Yilmaz
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... time migration of shot gathers, equivalently from the floating datum, using a range of constant velocities. Next, we combined the constant-velocity...
2008
Improve automatic migrated gather processing with feature engineering and 4D convolutional neural networks
Wen Pan, Harry Rynja, Ramakrishna Dandu, Zaifeng Liu, Shuzhen Ye, Antonio De Lilla, Jay Chen, Jeremy Vila
International Meeting for Applied Geoscience and Energy (IMAGE)
... International Inc. Summary Post-processing of migrated common image gathers is an essential step before residual moveout picking for pore pressure analysis...
2024
2D Survey Earth Model Building and Depth Imaging Using 3D Grid-Based Tomography Technology
Eric Pearson, Suyang Chen
Indonesian Petroleum Association
... was performed with a standard Kirchhoff migration algorithm to provide depth migrated common image point gathers for picking the residual moveout...
2012
Complex Model Building using Objective Construction of Curve Ray Time Migration Moveout with Geologic Constraints, #41596 (2015).
Kerry Stinson, Shlomo Levy, Edward Crase, Wai-Kin Chan
Search and Discovery.com
...)). The efficacy of the derived imaging velocity is seen also from the common offset migration gathers (Figure 5) which are quite flat. A second run...
2015
Abstract: Application of Surface-wave Modeling and Inversion in Cordova Embayment of Northeastern British Columbia; #90187 (2014)
Antoun Salama, Niranjan Banik, Mona Cowman, Kevin Roberts, Anna Glushchenko, Mark Egan, Alfonso Gonzalez, Eric von Lunen, and Jennifer Leslie-Panek
Search and Discovery.com
... We applied a newly developed surface-wave analysis, modeling, and inversion method to create a near-surface shear-wave velocity model using pulse data...
2014
Abstract: Towards an Optimal Workflow for Azimuthal AVO; #90171 (2013)
David Gray and Shangxu Wang
Search and Discovery.com
.... Clair, C., 2008, Wide azimuth imaging and azimuthal velocity analysis using offset vector tile prestack migration, First Break, 26, 9, 103-107. http...
2013
Delineating Thin-Bed Tight Gas Sand Reservoir with Prestack Joint PP/PS Inversion, #41363 (2014)
Zhiwen Deng, Ming Qiang, Shuanghu Shi, Xiaofeng Liang, Yang Zhu, Yijun Zhou, Qingjia Tong
Search and Discovery.com
... domain such that common conversion points are updated at each iteration of velocity analysis. Thus, mapping to PP and PS time scales is trivial...
2014
Abstract: Angle Gathers for Gaussian Beam Depth Migration; #90211 (2015)
Samuel Gray
Search and Discovery.com
... Migration Samuel Gray* Veritas DGC Inc, Calgary, Alberta, Canada Sam [email protected] Abstract Migrated common-image-gathers (CIG’s) are of central...
2015
Reservoir Description by Interferometric Imaging of VSP Data in Transition Zones
Thomas Radford, Martin Karrenbach, Ferry Yustiana, Willi Brianno, Dhea Wachju
Indonesian Petroleum Association
... aspects, we focused on the value of information obtained by using advanced processing flows, such as a 3D depth-tied velocity model construction using...
2013
An automatic velocity picking method based on object detection
Ce Bian, Weifeng Geng, Ping Yang, Pengyuan Sun, Guiren Xue, Haikun Lin
International Meeting for Applied Geoscience and Energy (IMAGE)
..., and the energy heap at the specific position of the point to be picked up in the velocity spectrum is detected as an object. Through the trained model...
2022
Appendix A: Considerations for Optimum 3-D Survey Design, Acquisition and Processing
R. Malcolm Lansley
AAPG Special Volumes
... true common reflection point gathers and eliminates the dip dependence of the stacking velocities. It is, however, very sensitive to changes in both...
2011
The Application of PSDM VTI Method to Generate a Velocity Model That Can Solve the Mistacking Problem
Aulia Ahmad Nafis, Hasan Nurudin, Ikhsan Hanurogo, Bagus Sapto M, Ahmad Zaenudin
Indonesian Petroleum Association
... image using a seismic method, it needs a velocity model that is able to define appropriately the velocity of wave propagation in the subsurface...
2018
Advances in Depth Imaging Technology: Rock Physics Guided Migration of Seismic Data in 3D
Nader C. Dutta, Sherman Yang, Jianchun Dai
Indonesian Petroleum Association
... the pore pressure state. This is the basis of pore pressure analysis using velocity data in this approach. This is Step 6. In the present workflow, we...
2012
Abstract: Supervirtual S-wave Refraction Interferometry for Converted Wave Statics and Near-Surface S-wave Velocity Model Building; #90224 (2015)
Kristof De Meersman and Yoones Vaezi
Search and Discovery.com
... arrivals could be picked on the supervirtual gathers and were subsequently inverted for a near-surface S-wave velocity structure which can be used...
2015
Integrated Workflow for the Reservoir Properties Prediction using the Ultra-Far Seismic Data, Mansoura Area, Onshore Nile Delta, Egypt, #42325 (2019).
Walaa Fathy, Asghar Shams,
Search and Discovery.com
.... A proper rock physics analysis using well logs in the area of study showed good potential to link the elastic properties to the reservoir properties...
2019
Abstract: Constrained 3D VTI Full Waveform Inversion of Wide Azimuth Data from the Red Sea, Saudi Arabia; #90254 (2016)
Young Seo Kim, Constantine Tsingas
Search and Discovery.com
...-azimuth gathers. The 3D common azimuth-angle image gathers were computed by using vector fields computed by optical flow methodology and the inverted...
2016
High-Resolution Model Building in a Full-Azimuth Nodal Survey in the GOM
Sandip Chattopadhyay, Gary Rodriguez, Tefera Eshete, Guy Hilburn, TGS
GEO ExPro Magazine
... to was the starting velocity model for the project. The velocity anisotropy. Therefore, common image gathers (CIGs) model was converted to the depth...
2016
Application of Full Waveform Inversion to Resolve an Eroded Shallow Carbonate Platform, North Madura, East Java, Indonesia
David Cavalin, Nurrul Ismail, Tom Paten, Kola Agbebi, Dave Lim
Indonesian Petroleum Association
... reflection tomography techniques provide long to mid wavelength velocity updates but generally fail in updating shallow water environments while giving...
2019
Fault Shadow Issues and Resolution in Model and Real Data
Andrew J. Davidoff, Ika Ratna Novianti
Indonesian Petroleum Association
.... A model has been built using a simple velocity field with a high-angle normal fault. A variety of different types of ray tracing experiments were...
2002