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The AAPG/Datapages Combined Publications Database
Showing 17,696 Results. Searched 200,357 documents.
ABSTRACT: A Comparison of AVO Behavior after Prestack Time Migration, Prestack Depth Migration, and Prestack Imaging, by James Allen, Carolyn Peddy, Anat Canning, Glen Denyer; #91020 (1995).
Search and Discovery.com
1995
Unconventional Play Fracture Characterization Through Orthorhombic Depth Model Building
Guy Hilburn, Amit Pendharkar, William Keller, René Mott, Jorge Peinado, Austin Jumper, Victor Kriechbaum
Unconventional Resources Technology Conference (URTEC)
... velocity function to attempt to correctly position events vertically, and an azimuthal correction may be applied to the final image gathers...
2018
Calibration of PS Shear Wave Anisotropy in a Mississippi Lime Play, North-Central Oklahoma
Scott Singleton, Shihong Chi, Lisa Sanford, Paul Constance
Unconventional Resources Technology Conference (URTEC)
... interpolation to repair these losses), and non-HTI effects such as local shear velocity perturbations and/or weathering zone variations. One point...
2016
Tackling data challenges in land FWI: A case study
Victor Lopez, Yun Dong Guo, QingYang Li, Bin Yu, Changhua Zhang
International Meeting for Applied Geoscience and Energy (IMAGE)
... significant improvements to the velocity and seismic imaging were achieved. 4. Reflection Tomography. The initial velocity model was created using well...
2023
Streamlining subsurface insights: Single extrapolation for holistic Green's function generation
Hongwei Liu
International Meeting for Applied Geoscience and Energy (IMAGE)
... regions, poses a challenge when using offset domain common image gathers (ODCIGs) generated through traditional ray-based Kirchhoff prestack depth migration...
2024
Full-waveform inversion and FWI imaging for land data
James Sheng, Cristina Reta-Tang, Faqi Liu, Alfredo Vzquez Cant, Alejandro Cabrales Vargas
International Meeting for Applied Geoscience and Energy (IMAGE)
... are derived using focusing analysis (Cai, et al., 2009). The velocity and anisotropy models are the starting point for DMFWI. We apply the DMFWI...
2022
Improving the image below complex overburden geology with FWI and Q-tomography: A case study at Etame license area, offshore Gabon
Richard Huang, Chong Chung, Benjamin Cole, Ivan Berranger, Ika Novianti, Paul Ware
International Meeting for Applied Geoscience and Energy (IMAGE)
..., and S. Greenwood, 2019, High resolution velocity and impedance estimation using refraction and reflection FWI: The Fortuna region, offshore Equatorial Guinea...
2022
Machine learning-based residual moveout picking
Farhad Bazargani, Wenjun Zhang, Anu Chandran, Zaifeng Liu, Harry Rynja
International Meeting for Applied Geoscience and Energy (IMAGE)
... common image point gathers: 68th Annual International Meeting, SEG, Expanded Abstracts, 1218–1221, doi: https://doi.org/ 10.1190/1.1820113. Yuan, P., W. Hu...
2022
Abstract: Converted-wave Time Imaging Nuts and Bolts; #90187 (2014)
Shaowu Wang, Thomas Hollis, and Wayne Nowry
Search and Discovery.com
... there are more velocity fields to be updated and it is more complicated to form gathers for velocity analysis prior to PS PSTM. A AAPG Search and Discovery...
2014
Are Key Technological Changes of the Last Three Years Enough to Warrant Reprocessing? Interpolation and AVO Inversion for the Nisku at Brazeau; #41556 (2015)
Lee Hunt, Scott Reynolds, Mark Hadley, Scott Hadley, Jon Downton, Bashir Durrani
Search and Discovery.com
... the veracity of AVO Inversion products. Of particular interest is the fact that Pelletier and Gunderson’s analysis was performed on CDP gathers rather than image...
2015
Incorporation of Geology, Wells, and Rock Physics into Anisotropy Estimation for Seismic Depth Imaging Enables True Earth Model, #40828 (2011)
Huyen Bui, Peck-Hwa David Ng, Jenny Zhou, Chih-Wen Kue, Mart Smith
Search and Discovery.com
... into correct depth as well as to flatten the common image-point (CIP) gathers. Subsequently, we performed local well tomography to upscale into 3D at the well...
2011
The Barque Structure Offshore New Zealand: Improving the Seismic Image Using Prestack Depth Migration; #41516 (2015)
Jim Montalbetti, Jeff Beckett, Graham Hodgkiss
Search and Discovery.com
... imaging was a technology to estimate the near water bottom interval velocity of the sediments using geomechanical principles. The results showed...
2015
Abstract: Removing Blended Sources Interference Using Stolt Operator; #90224 (2015)
Amr Ibrahim
Search and Discovery.com
...) 1000 2000 3000 Figure 6 Real data common receiver gather. (a) Pseudodeblended gather. (a) Stolt model for one velocity estimated using p = 1, q = 1...
2015
TAU Migration and Velocity Analysis
Search and Discovery.com
N/A
Deep learning velocity model building using an ensemble regression approach
Stuart Farris, Guillaume Barnier, Robert Clapp
International Meeting for Applied Geoscience and Energy (IMAGE)
... training label/feature pairs, training a CNN to map from a set of shot gathers to a velocity model, and using the trained CNN to make an ensemble...
2022
Seismic-Based Volcano Identification and Characterization in HD Oilfield, Tarim Basin; #10747 (2015)
Yaonan Li, Guizhong Wang, Desheng Sun, Hongmei Zhang, Zhen Zou, Lin Yu, Sheng Cao
Search and Discovery.com
... deconvolution based on shot-receiver gathers. The major processing steps have been monitored using the geophysical and geological QC method during...
2015
Elastic FWI application to a land data set in the Middle East
Anna Sedova, Olivier Leblanc, Thibaut Allemand, Gilles Lambar, Stphane Pellerin, Daniela Donno
International Meeting for Applied Geoscience and Energy (IMAGE)
... and imaging. Characterizing this part of the velocity model is necessary for accurate imaging of deeper structures. Reflection-based tomography...
2022
Velocity model building for pressure and converted wave imaging using surface-DAS data: A North Sea case study
M. ElAttar, H. Malak, A. Cooke, O. Lewis, C. Thorgersen
International Meeting for Applied Geoscience and Energy (IMAGE)
... model in the deeper section and to update the shear velocity model. The workflow is a combination of common-image-point (CIP) tomography Fourth...
2024
Enhance near-surface velocity tomogram using land-streamer data
Sherif M. Hanafy
International Meeting for Applied Geoscience and Energy (IMAGE)
...Enhance near-surface velocity tomogram using land-streamer data Sherif M. Hanafy Enhance near-surface velocity tomogram using land-streamer data...
2022
Abstract: Wavefront Picking for 3D Tomography and Full-Waveform Inversion; #90319 (2018)
Abdullah A. Theyab
Search and Discovery.com
... gathers. The objective of our work is to compute a smooth initial velocity model for multiscale fullwaveform inversion (FWI). Using interactive software...
2018
Prediction and removal of internal multiples using an improved CFP approach
Zhiheng Jiang, Yongqiang Yao, Pengzhi Zhang
International Meeting for Applied Geoscience and Energy (IMAGE)
... by point for the reflection interface where the internal multiples appear and obtain the CFP gathers, and then we predict the internal multiples...
2022
Resolving complex velocity and gas absorption features with full-waveform inversion in the Taranaki Basin, New Zealand
Yuelian Gong, Dominic Fell, Robert Hunn, Richard Bisley, Alexander Karvelas, Bee Jik Lim
Petroleum Exploration Society of Australia (PESA)
..., hindering the velocity model building of deeper structures if using the conventional raybased common image point (CIP) tomography method (Xie et al., 2018...
2019
Seismic Foldout: Revealing a Promising New Play Concept in the Salar Basin, Offshore Canada
Yermek Balabekov, Susana Tierrablanca, Sriram Arasanipalai, Nizar Chemingui, PGS
GEO ExPro Magazine
... RELIABLE EARTH PROPERTIES Using a wave equation parameterised in terms of velocity and reflectivity removes the need for a density assumption...
2023
Shear-wave value for seismic imaging: Lupin 9C Seismic 3D Survey, Midland Basin, West Texas
Hermes Malcotti, Ranjan Dash, James Davenport, Gary Murphy, James DiSiena, James Gaiser
International Meeting for Applied Geoscience and Energy (IMAGE)
... velocity and anisotropy model estimation for depth migration, and the azimuthal polarization analysis to provide inversion ready depth gathers along...
2022
East Coast Canada: So How Difficult Could a 3D PreSDM Be?
Ali Karagül
Search and Discovery.com
... needed at VMB stage… 3D PreSDM To meet deadline commitments, our Velocity Model Building was started using the original, processed gathers while the data...
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