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The AAPG/Datapages Combined Publications Database
Showing 33,130 Results. Searched 200,357 documents.
Determination of Velocity Model by Using NIP-Wave Tomographic Inversion: Application to Synthetic and Real Data
A. Hendriyana, R. Sule, Y. Akbar, L.A. Poerwaka, T.A. Sanny, Sardjito, Waluyo, Adriansyah
Indonesian Petroleum Association
... heterogeneous and appropriate for ray tracing. The velocity is used as first approximation of velocity field for pre-stack depth migration and updates...
2009
Washed-out Ripples: Their Equilibrium Dimensions, Migration Rate, and Relation to Suspended-Sediment Concentration in Very Fine Sand: REPLY
Jaco H. Baas , Herman De Koning
Journal of Sedimentary Research (SEPM)
... or Rouse number, ws = particle settling velocity, ß = coefficient relating eddy diffusion coefficients for water and sediment, = Von Karman constant...
1996
Abstract: Prestack Depth Migration with the Gabor Transform; #90211 (2015)
Yongwang Ma and Gary Margrave
Search and Discovery.com
... migration (phase shift with constant velocity) in laterally homogeneous media. If the lateral velocity structures in a slab are not extremely...
2015
Seismic imaging uncertainty using deep learning predicted Greens functions
Han Liu, Anar Yusifov, Muhong Zhou, Linda Hodgson
International Meeting for Applied Geoscience and Energy (IMAGE)
... a novel method of producing ensembles of seismic images from ensembles of velocity models using a deep learning neural network. First, the neural networks...
2022
DEPTH CONVERSION, Jeremy J. Zimmerman, Search and Discovery Article #40023, 2001
Search and Discovery.com
N/A
Scale Modeling of Bed Forms: Abstract
John B. Southard, Lawrence A. Boguchwal
Dallas Geological Society
... d, mean flow velocity U, fluid density p and viscosity μ, sediment size D and density ps, and gravity g), dimensional analysis provides four model...
1977
Scale Modeling of Bed Forms: Abstract
John B. Southard, Lawrence A. Boguchwal
CSPG Special Publications
... d, mean flow velocity U, fluid density p and viscosity μ, sediment size D and density ps, and gravity g), dimensional analysis provides four model...
1977
Abstract: Case Studies: Full-waveform Inversion and FWI Imaging for Land Data; #91204 (2023)
Cristina Reta-Tang, James Sheng, Faqi Liu, Alfredo Cantu, Alejandro Vargas
Search and Discovery.com
...Abstract: Case Studies: Full-waveform Inversion and FWI Imaging for Land Data; #91204 (2023) Cristina Reta-Tang, James Sheng, Faqi Liu, Alfredo Cantu...
2023
Quantitative Models for the Influence of Salt-Associated Thermal Anomalies on Hydrocarbon Generation, Northern Gulf of Mexico Continental Margin
I. Lerche , A. Lowrie
GCAGS Transactions
... Sigsbee Escarpment can then be inferred. Possible migration rates of the UM-P Sigsbee Escarpment to its present position yield: For constant movement...
1992
Evaluation of Eustasy, Subsidence, and Sediment Input as Controls on Depositional Sequence Geometries and the Synchroneity of Sequence Boundaries: Chapter 13: Recent Developments in Siliciclastic Sequence Stratigraphy
David T. Lawrence
AAPG Special Volumes
... models are summarized in Table 2. Case 1 (Figure 3) is a model of stratigraphy in a subsiding basin with constant sea level. Subsidence rates increase...
1993
Abstract: Tomographic Reflected-Wave FWI Using Time Lag; #90254 (2016)
Geoff Clark, Yilong Qin
Search and Discovery.com
...-wavelength velocity model. However, ray theory does not properly describe wave propagation in the case of complex heterogeneities such as a low...
2016
Full Waveform Inversion on Bekapai Field: A Game-Changer Technology for Our Seismic Imaging Workflows
Magali Beele, Clement Fleury, Claudio Strobbia, Muhammad-Thurisina Choliq, Jacques Bonnafe, Gilles Vallon
Indonesian Petroleum Association
... traces. CGG provides the initial velocity model obtained by merging the OBC fast-track pre-stack depth migration (PSDM) velocity model...
2014
Role of Hydraulic Sorting in the Origin of Fluvial Placers
Rudy Slingerland
Journal of Sedimentary Research (SEPM)
... = concentration of suspended load, w0 = constant terminal settling velocity, U* = friction velocity, and k0 = Von Karman constant. For any elevation...
1984
Accurate Depth Conversions Reduce Risk
Larry C. Luton, Corine Prieto
GCAGS Transactions
..., as the velocity required to best image data in the stacking and/or migration processing sequence. A long acquisition streamer or cable length is necessary to obtain...
2000
Abstract: Common Reflection Angle Pre-Stack Depth Migration as Data Enhancement Method for 3D Sparse Land Seismic Data, Case Study from Saudi Arabia; #90319 (2018)
Asaad E. Alzawwad, Krzysztof K. Sliz, Luke LaFreniere
Search and Discovery.com
...Abstract: Common Reflection Angle Pre-Stack Depth Migration as Data Enhancement Method for 3D Sparse Land Seismic Data, Case Study from Saudi Arabia...
2018
High-frequency FWI velocity model building for hydrocarbon delineation
Lianping Zhang, Souvik Sengupta, Chirag Parekh, Robert Eliott-Lockhart
International Meeting for Applied Geoscience and Energy (IMAGE)
... in the model building workflow to derive a detailed velocity model which is favorable to resolve these challenges. Summary We present a case study from offshore...
2022
Fines Migration during Coal Bed Methane Production: Mathematical and Laboratory Modelling, Field Cases
Abolfazl Hashemi, Bryant Dang-Le, Cuong Nguyen, Grace Loi, Nastaran Khazali
Australian Petroleum Production & Exploration Association (APPEA) Journal
...Fines Migration during Coal Bed Methane Production: Mathematical and Laboratory Modelling, Field Cases Abolfazl Hashemi, Bryant Dang-Le, Cuong Nguyen...
2023
Stratigraphic Velocity Interpretation: National Petroleum Reserve--Alaska: Chapter 12
E. W. Peikert
AAPG Special Volumes
..._Page 218------------------------ with the highest velocity contrast -- shale and sand, in this particular case. Thus, the seismic amplitudes can...
1985
Gabor Depth Migration using a New Adaptive Partitioning Algorithm
Yongwang Ma
Search and Discovery.com
... created by the algorithm. Gabor Depth Migration Example The Marmousi velocity section used in Gabor depth imaging in this paper is shown in Figure 3...
Unknown
Gabor Depth Migration using a New Adaptive Partitioning Algorithm
Yongwang Ma
Search and Discovery.com
... created by the algorithm. Gabor Depth Migration Example The Marmousi velocity section used in Gabor depth imaging in this paper is shown in Figure 3...
Unknown
Sedimentologic and Physical Oceanographic Evidence of a Shelf Edge Counter Current Off Guinea Bissau, Guinea and Sierra Leone
David W. McGrail
Journal of Sedimentary Research (SEPM)
...]/[vx]i + [v]/[vy]j + [v]/[vz]k) a differential operator = (wk) the constant angular velocity of the system i, j, k = unit vectors in the rotating frame...
1977
ABSTRACT: Influence of Salt Geometry and Salt-Sediment Interaction on Seismic Imaging, by Bui, Huyen; Jamieson, George; Snyder, Fred; Herbert, Sharlene; Becker, David; Smith, Martiris; #90135 (2011)
Search and Discovery.com
2011
Seismic Migration Interpolation using Time-Shift Imaging Condition
Mark Ng
Search and Discovery.com
... variable space and time lag imaging methods, have been used for depthfocusing analysis (DFA) for migration velocity analysis (MacKay and Abma, 1992...
Unknown
Seismic Migration Interpolation using Time-Shift Imaging Condition
Mark Ng
Search and Discovery.com
... variable space and time lag imaging methods, have been used for depthfocusing analysis (DFA) for migration velocity analysis (MacKay and Abma, 1992...
Unknown
Seismic Time to Depth Conversion and Uncertainty Analysis for Horizon Prediction in a Proposed Well-Site of Sungai Gelam Field, Jambi Subbasin
Muhamad Wildan P., Imam Muda Gunawan, Andry Pujiriyanto, Sudarmaji
Indonesian Petroleum Association
... depending on the purpose and the availability of existing data sources. In seismic data, processing in the form of migration also involves velocity modeling...
2013