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The AAPG/Datapages Combined Publications Database
Showing 33,130 Results. Searched 200,357 documents.
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user
Search and Discovery.com
..., high resolution migration velocity estimation and imaging is introduced. The methodology for objective, data driven determination of the velocity...
Unknown
Improved Structural Imaging of the Karama Seismic Survey Using Anisotropy Kirchhoff and Beam Depth Migration
Zbigniew Ostapiuk, Bee Jik Lim, Martin Bayly
Indonesian Petroleum Association
... performed in this case to produce an optimized final tilted anisotropic velocity model. During the velocity model updates, the updated model was constantly...
2012
Monument Butte 3DReprocessing case study in Uinta Basin
Mitch Preston, Xinxiang Li, Seth Berman, Phillip Keith, Christopher Egger, Josef Heim, Nebojsa Pralica, David Brookes, James Beck
International Meeting for Applied Geoscience and Energy (IMAGE)
...Monument Butte 3DReprocessing case study in Uinta Basin Mitch Preston, Xinxiang Li, Seth Berman, Phillip Keith, Christopher Egger, Josef Heim...
2022
Overview of Exploration Geophysics: Recent Breakthroughs and Challenging New Problems: Hydrocarbons
B. S. Flowers
AAPG Special Volumes
... of the velocity-structure problem from the Michigan basin (Fig. 1) typifies the special case of near-surface "sonic lenses." Highly irregular deposits...
1976
Key Technologies for Processing of Seismic Data in Gas Cloud Area, Bohai Bay Basin, #42093 (2017).
Xia Tongxing, Ming Jun, Liu Lei, Zhou Xuefeng, Liu Hongxing, Liu Xuetong
Search and Discovery.com
... is realized directly during depth migration. Conventional reflection tomography can’t build an accurate velocity model, where lateral variation of velocity...
2017
Resolving geological complexity with legacy streamer survey, part 2: Application of DM FWI to sub-optimally acquired data
Nebojsa Pralica, Milos Cvetkovic, Seet Li Yong, Daniel Davies, Jon Rogers
International Meeting for Applied Geoscience and Energy (IMAGE)
... be derived while varying the maximum offsets of the data, with all other parameters held constant. Figure 2 illustrates the results, showing velocity...
2024
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)
... case: The study area features a complex folded structure, causing lateral velocity contrasts that are difficult to handle with conventional tomography...
2023
Elastic full-waveform inversion using OBN data acquisition
Denes Vigh, James Xu, Xin Cheng, Bing Bai
International Meeting for Applied Geoscience and Energy (IMAGE)
... velocity. The inversion was compared to the acoustic FWI result and shows that better velocity model and migration image can be derived with elastic FWI...
2022
Practical solutions for reflection-driven FWI and application to Gulf of Mexico datasets
Max Liu, Ren-douard Plessix, Yi Yang, Jeffrey Vander Hurst, Na Shan, Rob Schelstrate, Colin Perkins, Vanessa Goh
International Meeting for Applied Geoscience and Energy (IMAGE)
... impedance imprints in velocity updates. Phase-only objective functions with a velocity-impedance parameterization mitigate some of these challenges. After...
2022
EXTENDED ABSTRACT: From Isotropic to Tilted Transverse Isotropic Pre-Stack Depth Migration
Nicolas Chazalnoel
GCAGS Transactions
... residue move-out correction during the post-migration stage. While this assumption is generally valid for flat layered sediment and velocity profile...
2011
Methane migration mechanisms for the Green Canyon Block 955 gas hydrate reservoir, northern Gulf of Mexico
Li Wei, Ann Cook, and Kehua You
AAPG Bulletin
...Methane migration mechanisms for the Green Canyon Block 955 gas hydrate reservoir, northern Gulf of Mexico Li Wei, Ann Cook, and Kehua You 2022 1005...
2022
Case History: Big Bend Gulf of Mexico Exploration Success Through Integrated G&G Technology
Search and Discovery.com
N/A
Reflection or Refraction?
Aleksandr Nikitin, Nikolay Amelin, Sergei Pokrovskii, Andrey Lekomtsev
GEO ExPro Magazine
... a refracted wavebased velocity model can be a better, more stable and reliable alternative for signal enhancement data processing, migration procedures...
2017
Turning high resolution FWI model into pseudo-reflectivity: A case study using sparse OBN
Bing Bai, Yao Yu, Ruoyu Gu, Shenghong Tai, Denes Vigh
International Meeting for Applied Geoscience and Energy (IMAGE)
... in the inverted velocity model. The migration image is usually considered as normal reflectivity of the subsurface, however, a pseudoreflectivity can...
2022
Geological Input Valuable in Seismic Velocity Analysis, by Supratik Sarkar; #41118 (2013).
Search and Discovery.com
2013
Anisotropic Multi-Azimuthal Velocity Model Building and Depth Imaging on Tulip 3D Coil Shooting Survey
Michele Buia, Suyang Chen, Olga Zdraveva, Swee Leng Ng, Martin Bayly, Michelle Tham
Indonesian Petroleum Association
... azimuth sectors for migration velocity © IPA, 2012 - 35th Annual Convention Proceedings, 2011 analysis and azimuthal tomography velocity model...
2011
Porosity Reduction in Sandstone by Quartz Overgrowth: DISCUSSION
Jeffrey S. Hanor
AAPG Bulletin
...., Geochemistry of hydrothermal ore deposits: New York, John Wiley, p. 137-172. Hanor, J. S., 1988, Origin and migration of subsurface sedimentary brines: SEPM...
1988
A Southern North Sea Multi-Survey preSDM using Hybrid Gridded Tomography, #41592 (2015).
Ian Jones, Emma Evans, Darren Judd, Alan Campbell, Steve Elam
Search and Discovery.com
... and the layer pick itself. In this case the model above the soft-constraint pick can change. Velocity Model Building and Pre-Stack Depth Migration...
2015
Extended Abstract: Advances and Challenges in Seismic Data Processing and Imaging for Geologically Complex Areas
Ruben D. Martinez
GCAGS Transactions
... accurate velocity models for migration but also be able to account for velocity anisotropy, in this case, TTI (tilted transverse isotropy). The estimation...
2012
ABSTRACT: Geologically Constrained Pre-stack Depth Imaging over the Greater Burgan Oilfield, by Zahran, Wael A.; Mukherjee, Pradip K.; Al-Ghareeb, Aisha Y.; Cunnell, Chris; Saleh, Tamer; Abdel-Wahab, Hossam M.; #90141 (2012)
Search and Discovery.com
2012
Three-Dimensional Quantitative Characterization of Pore Throat Space of Low and Ultra Low Permeability Sandstone Reservoir in Bohai Bay Basin by Combined Constant Velocity Mercury Injection and X-CT
Search and Discovery.com
N/A
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
... be wrong at zero offset because the most important parameter that can cause the wrong depth is the vertical seismic velocity used in migration. To create...
2011
Wave equation traveltime Kirchhoff with real data applications
Hu Jin, Vladimir Bashkardin, Petr Jilek, Chandan Kumar, Han Liu, John Etgen, Madhav Vyas, Ganyuan Xia
International Meeting for Applied Geoscience and Energy (IMAGE)
... high-resolution models. However, migration gathers are still needed for verifying the quality of the velocity model and for performing post-migration...
2023
Seismic Modeling and Expression of Common Fold-Thrust Belt Structures
Search and Discovery.com
N/A
Pore Pressure and Elastic Moduli Estimation Considerations for a Simplified Geomechanical Model for Unconventional Plays. A case study in the Vaca Muerta Formation
Sergio Cuervo, Ezequiel Lombardo
Unconventional Resources Technology Conference (URTEC)
... to be performed prior to the estimation of the effective stress. If, as in our case effective stress to velocity relationship is altered...
2017