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The AAPG/Datapages Combined Publications Database
Showing 28,831 Results. Searched 196,763 documents.
3-D AVO Analysis and Modeling Applied to Fracture Detection in Coalbed Methane Reservoirs
Antonio C.B. Ramos, T.L. Davis
Rocky Mountain Association of Geologists
... the 3-D volume confirms model predictions. Areas of large AVO intercepts indicate low velocity coals, possibly related to zones of stress relief. Areas...
1997
Changes in Flow Direction at a Point Caused by Obstacles During Passage of a Density Current
Stephen A. Morris,, Jan Alexander
Journal of Sedimentary Research (SEPM)
... in the region of observed flow thickening because of an increased particle flux to the bed caused by velocity reduction. The upflow limit of the influence...
2003
Sand Fountains in the Surf Zone
Benno M. Brenninkmeyer
Special Publications of SEPM
... sediment distribution is bimodal depths h von Karman s grains K constant u flow velocity and u viscous shear stress This equation can be used...
1987
DL-fused elastic FWI: Application to marine streamer data
Pavel Plotnitskii, Oleg Ovcharenko, Vladimir Kazei, Daniel Peter, Tariq Alkhalifah
International Meeting for Applied Geoscience and Energy (IMAGE)
... marine and land data (Ovcharenko et al., 2021b,c). Alternative deep learning approach is to infer velocity models directly from the seismic data(e.g....
2022
Bed-Load Transport in a Chain of River Segments
William F. Tanner
Oklahoma City Geological Society
... 0.07 at the mouth. The ratio of Q to q therefore falls in the range 6,000 to 18,000. The long-term average velocity of water flow in the main channel...
1976
Deep compressed learning for 3D seismic inversion
Maayan Gelboim, Amir Adler, Yen Sun, Mauricio Araya-Polo
International Meeting for Applied Geoscience and Energy (IMAGE)
... ร depth), with variable thickness velocity layers, including random salt geometries in 40% of the models. All models were generated using the Gempy...
2023
Sumpal Fractured Basement Field, Structural Attribute Analysis and Interpretation Case Study, Workflow Management and New Insights from Pre-Stack Depth Migrated Data and Azimuthal Stacks
Yan Darmadi, John Hughes, Sugiharto Danudjaja, Rita Achdiat
Indonesian Petroleum Association
... velocity processing was not incorporated owing to the absence of a coherent basal reflector to propagate the seismic energy through the basement medium...
2014
Seismic Stratigraphy and Global Changes of Sea Level: Part 6. Stratigraphic Interpretation of Seismic Reflection Patterns in Depositional Sequences: Section 2. Application of Seismic Reflection Configuration to Stratigraphic Interpretation
R. M. Mitchum Jr., P. R. Vail , J. B. Sangree
AAPG Special Volumes
... data. Seismic facies units are groups of seismic reflections whose parameters (configuration, amplitude, continuity, frequency, and interval velocity...
1977
Reef Development on a Mid-Oceanic Island: Reflection Profiling Studies of the 500-Meter Shelf South of Oahu
Arthur E. Gregory III , Loren W. Kroenke
AAPG Bulletin
...., 1939, Tables of the velocity of sound in pure water and sea water for use in echo-sounding and sound ranging: London, Admiralty Hydrography Dept., 52 p...
1982
Modeling consolidated sandstones with dispersed clay
J. Gallop, L. Vernik, F. Contreras, J.-G. Restrepo, S. Blanco, G. Alvarez
International Meeting for Applied Geoscience and Energy (IMAGE)
... framework. Figure 1 is an example, with the solid fraction of dry clay (๐ฃ ๐๐ ) as the independent variable. The right side of this graph...
2023
Aspects of Seismic Resolution: Chapter 1
R. E. Sheriff
AAPG Special Volumes
..., and uncertainties imposed by velocity, stacking, and two-dimensional assumptions. Denham, L. R., and R. E. Sheriff, 1980, What is horizontal resolution...
1985
A Unified Leak-off and Flow-back Model for Fractured Reservoirs
Dylan Copeland
Unconventional Resources Technology Conference (URTEC)
...ted as the maximum value for the spatial variable . Appropriate boundary conditions must be specified at both ends of the leakoff lines for the equation to h...
2014
A 3D Seismic Interpretation - Flounder Field, Gippsland Basin
A. J. Young, R. R. Coenraads
Petroleum Exploration Society of Australia (PESA)
...-of-reservoir reflector could be mapped directly. This reflector is usually weak and is extremely variable in character, due to the lack of impedance contrast...
1985
Chapter 12: Microseismic Monitoring in Early Haynesville Development
Peter M. Duncan, William B. Barker, Leo Eisner, Peter G. Smith, Kevin Smith, Sherilyn Williams-Stroud
AAPG Special Volumes
... of hydraulic fracture treatments from permanent arrays through a calibrated velocity model: Submitted to Geophysical Prospecting. Early development...
2013
Seismic Facies Analysis of Delta-Plain Coals from Camrose, Alberta, and Lacustrine Coals from Pictou Coalfield, Nova Scotia
D. C. Lawton
AAPG Bulletin
... coals and lacustrine sediments. Basinal margin facies contain a greater abundance of variable clastic sediments and are recognized by discontinuous...
1985
Robust localized adaptive waveform inversion: A new regularization for Gabor deconvolution
Peng Yong, Romain Brossier, Ludovic Mtivier
International Meeting for Applied Geoscience and Energy (IMAGE)
... a localized adaptive waveform inversion method (LAWI) to tackle the cycle-skipping issue in velocity reconstruction by waveform inversion. In LAWI, the Gabor...
2022
Accurate simulations of pure P-waves in attenuating transversely isotropic media
Qiang Mao, Jianping Huang, Xinru Mu
International Meeting for Applied Geoscience and Energy (IMAGE)
... to the variable-order fractional Laplacians. Numerical examples demonstrate that our new wave equation has higher accuracy than the previous pure-viscoacoustic VTI...
2023
Investigation of Possible Shallow Gas Accumulations Associated with Pockmarks on the Otago Slope Southeast of New Zealand
Jasper Hoffmann, Andrew Gorman, Gareth Crutchley
Petroleum Exploration Society of Australia (PESA)
... and bathymetry data collection is underway. High-density velocity analysis and amplitude variations with offset (AVO) will be assessed around the bright...
2018
Fluid Mechanics
Jeffrey S. Hanor
Special Publications of SEPM
... have chosen here simply to start with the most general form of Darcy's law, a form which can be used to analyze flow in variable density fluid...
1988
Depositional Processes and Fluid Mechanics of Upper Jurassic Conglomerate Accumulations, British North Sea
L. G. Kessler II, Kit Moorhouse
CSPG Special Publications
... = velocity of the rigid plug v = unit weight of the debris (debris density ร gravity) ฯ* = velocity variable (from Johnson, 1970, p. 507, graph 14-7B...
1984
Deposit Structure and Processes of Sand Deposition from Decelerating Sediment Suspensions
Esther J. Sumner, Lawrence A. Amy, Peter J. Talling
Journal of Sedimentary Research (SEPM)
..., W.D., 1999, Velocity structure, turbulence and fluid stresses in experimental gravity currents: Journal of Geophysical Research, v. 104, p. 5381โ5391...
2008
Seismic interpretation of mass-transport deposits within the upper Oligocene Frio Formation, south Texas Gulf Coast
Osareni Ogiesoba, Ursula Hammes
AAPG Bulletin
... are composed of acoustic-impedance materials that are lower than those of the undeformed shallow Frio and are underlain by low-velocity, overpressured, shale...
2012
Premigration attenuation analysis and mapping to image domain by weighted migrations
Yonghe Sun, Chunling Wu, Mark Fan, Zhemin Tan
International Meeting for Applied Geoscience and Energy (IMAGE)
... be quantified by a Q-factor and can be incorporated into a complex velocity representation 1 ๐ ๐ ๐ฃ ๐ (๐) = ๐ฃ(๐0 ) โ [1 + ln ( ) + ], (1) ๐๐ ๐0 2...
2022
3D Seismic Definition of Fault Geometries and Interference as Structural Controls on Oil Fields in the Upia Area, Llanos Basin, Colombia
M G de Freitas
Asociaciรณn Colombiana de Geรณlogos y Geofisicos del Petrรณleo (ACGGP)
... in the area were used for stratigraphic and velocity controls over the study area. The majority of these wells contains high quality velocity data (VSPs...
2000
Transformation of Weight Frequency and Number Frequency Data in Size Distribution Studies of Clastic Sediments
Basanta K. Sahu
Journal of Sedimentary Research (SEPM)
... remains suspended or is deposited. Therefore, the terminal velocity of the particles is the most important variable for studies concerning transportation...
1964