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The AAPG/Datapages Combined Publications Database
Showing 2,249 Results. Searched 200,357 documents.
Model-Based, 2-D Seismic Definition of Subthrust Structure in the Uranium Peak Area, Northwest Colorado
George C. Robertson, Dirk W. McDermott, Rex L. Tang
Rocky Mountain Association of Geologists
... p t h migration software o n a N E C SX3 supercomputer. Several iterative velocity models and migration passes were run. Prestack depth migration...
1995
High-resolution imaging using Gaussian beam point-spread-function deconvolution
Jidong Yang, Jianping Huang, Hejun Zhu, George McMechan
International Meeting for Applied Geoscience and Energy (IMAGE)
.... Depth (km) 5 4 3 2 1 0 Figure 2: Migration velocity model for the land survey built by ray-based tomography. Figure 3: The PSFs for the land survey...
2023
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
... the updated velocity model. The image domain QC is based on an efficient implementation of Beam Pre-Stack Depth Migration (BPSDM) (Sherwood et al., 2009...
2019
Abstract: Parallel Implementation of Pre-stack Least-squares Migration for Distributed Systems; #90171 (2013)
Sam T. Kaplan
Search and Discovery.com
..., Canada [email protected] Summary Least-squares wave-equation pre-stack depth migration is a computationally expensive algorithm, requiring repeated...
2013
U-net based primary alignment
Ricard Durall, Ammar Ghanim, Norman Ettrich
International Meeting for Applied Geoscience and Energy (IMAGE)
..., prestack migration and demultiple processes. This is particularly essential for amplitude versus offset (AVO) studies, as flat gathers are necessary...
2023
Abstract: Simple Wavefield Modelling to Evaluate the Low Frequency Artifacts in Reverse-Time Migration; #90224 (2015)
John C. Bancroft
Search and Discovery.com
... migration with the phase shift method, Geophysics, Vol. 43, 1342 – 1351. Khaniani, H., Bancroft, J. C., and Von Lumen, E., 2013, Iterative...
2015
Southwest Palawan, Philippines: A Case Study in Seismic Imaging and Interpretation of Complex Structures
Philip M. Rimando, Geronimo A. Manuel, Raymundo A. Reyes, Jr.
Southeast Asia Petroleum Exploration Society (SEAPEX)
... process. The pre-stack depth migration routine utilized in this study was itself iterative or recursive. The seismic section obtained from each iteration...
1994
Abstracts: Implicit Preconditioning for Least-squares Nonstationary Phase Shift; #90173 (2015)
Marcus R. Wilson and Robert J. Ferguson
Search and Discovery.com
... migration with the phase-shift method: Geophysics, 43, 1342-1351. Margrave, G.F., and Ferguson, R. J., 1999, Prestack depth migration by symmetric...
2015
Structural Interpretation and Modeling of Seismic Data from the Moran and Paua Area, PNG Foldbelt
S. Lingrey
Papua New Guinea (PNG) Petroleum Convention Proceedings
...) interpretation of Toro Formation reflections in the stack data, 5) inverse modeling of Toro Formation reflection segments (depth migration), 6...
2000
4D image velocity scan to improve the 4D quantitative interpretation
Mohamed Hatab, Colin MacBeth
International Meeting for Applied Geoscience and Energy (IMAGE)
... Kirchhoff pre-stack depth migration in a 50m x 50m grid. After migrating with all model percentages, the output PreSDM image gathers for each migration...
2022
Abstract: Least Squares Pre-Stack Time Migration for Imaging and Reconstruction of Converted Waves; #90224 (2015)
Aaron Stanton
Search and Discovery.com
... parallelizable. The speed of this algorithm also makes it possible to perform iterative velocity analysis. In the case of least squares migration the forward...
2015
Seismic in Understanding a Geological Model: Exploration in the UK Southern North Sea Rotliegend Transition Zone, by Hubert J. M. Dejong, Richard Knight, Ray McClenaghan, Franek Mrozek, #40114 (2004).
Search and Discovery.com
2004
Prestack Depth Migration for "Easy" Unconventional Plays?, #41056 (2012)
Morgan Brown
Search and Discovery.com
...Prestack Depth Migration for "Easy" Unconventional Plays?, #41056 (2012) Morgan Brown Prestack Depth Migration for "Easy" Unconventional Plays...
2012
New Integrated Workflows for Improved Pore Pressure Prediction and Seismic Imaging, #41705 (2015).
Marek Kacewicz, Sankar Muhuri, Weihong Fei
Search and Discovery.com
... to compute velocities. In pre-stack depth migration such velocities typically lead to a better seismic image. This presentation introduces new geologically...
2015
Prewell and postwell predictions of oil and gas columns using an iterative Monte Carlo technique with three-dimensional petroleum systems modeling
Are Tømmerås, Øyvind Sylta, Matthias C. Daszinnies, and Davide Mencaroni
AAPG Bulletin
...Prewell and postwell predictions of oil and gas columns using an iterative Monte Carlo technique with three-dimensional petroleum systems modeling...
2018
Sparsity and Continuity Enhancing Seismic Imaging, #41532 (2015).
Peyman P. Moghaddam, Felix Herrmann, and Chris Stolk
Search and Discovery.com
... of image (3500 m depth) for the offsets from 4.3 to 7.2 km. For this example, we used a two-way wave-equation reverse-time migration and modeling (Symes...
2015
Extended Abstract: Source Body Migration, an Approximate Inversion Method for Full Tensor Gravity Gradiometer Data
James Brewster, John Mims
GCAGS Transactions
... density source bodies to the gravity gradient observations. This is done by the iterative application of potential field migration, a 3D imaging method...
2016
Application of time-adaptive FWI on onshore data in Bohai Bay Basin
Wan Xuejuan, Luo Wenshan, Wang Yongming, Gong Ting, Li Daoshan, Chen Yuansheng
International Meeting for Applied Geoscience and Energy (IMAGE)
... depth migration section and gathers after the joint use of TA-FWI and LS-FWI. The accuracy of velocity inversion further improves, and the signal-to-noise...
2024
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
High-precision seismic imaging for complex deep structures in the hydrocarbon exploration using a coherent-stacking-based least-squares migration
Jidong Yang, Jianping Huang, Tengfei Lin, Zhenchun Li, and Liang Chen
AAPG Bulletin
... and Zhu, 2018), and anisotropy correction (Zhang et al., 2011), help RTM to be a powerful depth migration in production. Because both ray-based and wave...
2024
Probabilistic Hydrocarbon Migration Modeling in the Utsira High Area, Norwegian North Sea
Search and Discovery.com
N/A
Abstract: Better Imaging of the Subsurface using Primaries and Multiples: A Synthetic Example
Abdul Rahim Md Arshad, Deva Ghosh
Geological Society of Malaysia (GSM)
... migration after demultiple, a synthetic line mimicking a seismic line in the Malay Basin was imaged by simultaneously migrating the primaries...
2017
Abstract: Basin Modeling Route to Seismic Inversion, by Marek Kacewicz; #90066 (2007)
Search and Discovery.com
2007
Integrated Full Waveform Inversion and Dip Constrained Tomography for Complex Carbonate Imaging - Case Study from Indonesia
Yonghe Guo, Jun Wang, Pongga Wardaya, Riaz Alai, M Afiq B Mokhtar, Rizki Krishna Pratama, Haryono Haryanto
Indonesian Petroleum Association
...-stack Depth Migration (PSDM) with FWI was employed to solve the image problem by using refraction and reflection energy. Refraction energy is widely...
2018
Latest imaging advancements in Suriname shallow waters
Jing Yang, Zhihua Sun, Zhihua Su, Bei Hu, Nicolas Chazalnoel
International Meeting for Applied Geoscience and Energy (IMAGE)
...) 60 Hz FWI Image of raw data. Depth slice at 60 m of: (g) Kirchhoff migration of data after demultiple with post-migration footprint removal, (h) 60 Hz...
2023