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The AAPG/Datapages Combined Publications Database
Showing 8,154 Results. Searched 200,293 documents.
High-End Model Building Techniques for Revealing a Pre-Carbonate Reservoir Offshore East Natuna Basin, Indonesia
Jun Wang, Yonghe Guo, Yitao Chen, Muhammad Nauvall Juliansyah, Nick Crabtree
Indonesian Petroleum Association
... difficulties for conventional raybased reflection travel-time tomography. Figure 3 - Initial velocity and refraction energy penetration analysis (Depth...
2023
Towards Improved Quality and Accuracy of Deeper Target Images on Land Data
Afiq Mokhtar, Riaz Alai, Christopher Lee Slind, Poetri Monalia, Rizki Krishna Pratama
Indonesian Petroleum Association
... advantage of land over marine datasets is its richness in azimuth. Hence an optimal velocity model was obtained through multi-azimuth tomography...
2022
Frequency-Domain Waveform Tomography in the Foothills: Velocity Model Estimation with Synthetic Long-Offset Data
Search and Discovery.com
.... Depth imaging is often necessary, and an accurate estimation of the macro-velocity model is essential. Waveform Tomography (i.e., traveltime...
2013
Tengiz field fault shadows mitigation with combined joint FWI-tomography, Q-tomography, and least-square migration
Tianjiang Li, King Sim Lee, Bin Gong, Kai Yang, Kai Zhang, Assem Bibolova, Zhanibek Katrenov
International Meeting for Applied Geoscience and Energy (IMAGE)
...: Iterative Joint FWI and Tomography Depth model building is an iterative process including refraction tomography for the near-surface velocity...
2022
Abstract: Smart DAS Upholes for Near Surface Model Building and Deep Imaging; #90319 (2018)
Pavel Golikov, Robert Smith, Andrey Bakulin, Mustafa Al-Ali
Search and Discovery.com
... corrections. However, refraction tomography has many limitations and is not always able to provide the desired accuracy. This is especially apparent when...
2018
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)
.... Refraction tomography to build the near surface model. The near surface model is inserted into a smooth velocity model reaching maximum depth. Long...
2022
An Interpreter's Guide to Improvements in Depth Imaging through Model-Based Velocity Estimation and Refinement
Andy Furniss
Petroleum Exploration Society of Australia (PESA)
...) CMP Gathers Depth Gathers Tomography Final Velocity Model Prestack Depth Migration Depth Section Depth Gathers Fig. 1 - A typical workflow used...
1999
Resolving geological complexity with legacy streamer survey: Potiguar 3D offshore Brazil case study
Seet Li Yong, Milos Cvetkovic, Terry Johnson, Boedi Soelistijo, Leon Ge
International Meeting for Applied Geoscience and Energy (IMAGE)
... round. This legacy velocity model workflow was comprised of iterative passes of tomography including manual interpretation of the volcanic geobodies...
2023
An Interpreter's Guide to Improvements in Depth Imaging Through Model-Based Velocity Estimation and Refinement
Andy Furniss
Indonesian Petroleum Association
... a typical tomography workflow to refine the velocity depth model. Figure 10. Typical workflow for refining velocity models by global tomography...
2000
Abstract: To TTI or not to TTI? Semi-Automated 3D Tomographic Velocity Analysis in the Canadian Foothills: A Case History; #90211 (2015)
Sylvestre Charles, David Mitchell, Rob Holt, Jiwu Lin, and John Mathewson
Search and Discovery.com
... metres iso-depth tomography solution. While all three sets of statics improved reflector imaging, the velocity depth models were not good physical...
2015
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)
... (indicated by the green arrow). Tomography alone struggles to accurately delineate lateral velocity changes associated with this channel, whereas DM FWI...
2024
Abstract: Geophysical Ambiguity of Fault Interpretations on 3D Seismic Datasets;
John Solum, Onyekachi Onyeagoro
Search and Discovery.com
... activities. Ambiguity of fault interpretations can be caused by both an inherent “lack of clarity” in fault interpretation associated with limitations...
Unknown
Constrained tomography for improved presalt elastic full-waveform inversion
Yaofeng He, Xu Li, Young Ho Cha, Partha Routh, Inma Dura-Gomez, Carey Marcinkovich
International Meeting for Applied Geoscience and Energy (IMAGE)
... showed a slower velocity trend than the initial velocity; b) depth misties were present in the pre-salt region. A first attempt using tomography without...
2022
Seismic first arrival tomography for top salt velocity update: A case study in the Santos Basin, Brazil
Paulo H. B. Alves, Marco Cetale, Roger M. Moreira, Sérgio L. E. F. da Silva, Jorge Lopez
International Meeting for Applied Geoscience and Energy (IMAGE)
... alleviate depth-velocity ambiguity compared to conventional two-way time tomography. Conversely, Zelt and Barton (1998) underscore the importance...
2024
Abstract: Multi-layer Tomography and its Application for Improved Depth Imaging, by Patrice Guillaume, Steve Hollingworth, Xiaoming Zhang, Anthony Prescott, Richard Jupp, Gilles Lambaré, and Owen Pape; #90160 (2012)
Search and Discovery.com
2012
Recent Applications of Turning
Search and Discovery.com
N/A
Eikonal equation-based adjoint-state characteristic reflection traveltime tomography: Method and application in real dataset
Jianming Zhang, Liangguo Dong, Jianhua Wang, Yilin Wang, Chao Huang
International Meeting for Applied Geoscience and Energy (IMAGE)
... in advance. The inaccurate reflector depth leads to incorrect velocity inversion owing to the inherent velocity-depth coupling. To solve...
2023
What Can Multiscale 3D Imaging Do for Energy Geoscience?
Kevin G. Taylor, Lin Ma
GEO ExPro Magazine
... Tomography (CT), micro-Xray CT, nano-X-ray CT, Focussed Ion Beam Scanning Electron Microscopy (FIB-SEM) and Transmission Electron Microscopy (TEM...
2021
CMP domain near-surface velocity model building based on deep learning
Yihao Wang
International Meeting for Applied Geoscience and Energy (IMAGE)
.... This local modeling method solves the limitations of traditional deep learning velocity model building methods in undulating topography and complex...
2022
Abstract: Full-Waveform Inversion of Field Data in the Foothills: Results and Challenges with Long-Offset Seismic; #90172 (2014)
Andrew J. Brenders, R. Gerhard Pratt, Sylvestre Charles
Search and Discovery.com
...-frequency sensors, could potentially yield accurate, high-resolution velocity models when processed by Waveform Tomography (traveltime tomography followed...
2014
Minimizing Depth Uncertainties Through Effective Seismic Processing Strategies in a Complex Geological Setting - Unlocking Deeper Potentials Offshore Indonesia
M Afiq B Mokhtar, Riaz Alai, Yonghe Guo, Pongga Wardaya, Jun Wang, Rizki Krishna Pratama, Haryono Haryanto
Indonesian Petroleum Association
... subsurface. Often, due to time and cost limitations, interpretations are done either on vintage seismic sections in time domain or on depth converted...
2018
Abstract: Rock Physics guided Earth model building and Sub-salt angle gather tomography for imaging and pore pressure; #90254 (2016)
Bhaskar Deo, Mohamed F. Doheim, Mahmoud Ahmed, Abdallah Ibrahim, Hany Hussein, Christoph Koeninger, Yousry Ibrahim, Hatem Ewida
Search and Discovery.com
... salt which helps us overcome the ray limitations of the Kirchhoff ray tracing based tomography. We are able to produce a velocity with improves...
2016
Simultaneous Joint Inversion of Seismic, Magnetotelluric and Gravity in a Sub-Volcanic Reservoir
Muhammad Irsyad Hibatullah, Maulana hutama Rahma Putra, Firman Syaifuddin Akbar, Dwa Desa Warnana, Fahrenzy Yona Aisha
Indonesian Petroleum Association
... a high degree of ambiguity and non-uniqueness. ● ● ● Traveltime tomography has the advantage of for imaging the basalt layer or high velocity zone...
2019
Geologically Constrained Seismic Imaging in Andean Thrust Belts, #42530 (2020).
Rob Vestrum,
Search and Discovery.com
... reflection tomography, GEOPHYSICS 64: 1546-1552. 4000 4000 5000 6000 7000 3000 depth Correcting for the lateral velocity variation across...
2020