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The AAPG/Datapages Combined Publications Database
Showing 5,455 Results. Searched 200,357 documents.
Hydrodynamic influences on sedimentology and geomorphology of nearshore parts of carbonate ramps: Holocene, NE Yucatán Shelf, Mexico
Thomas C. Neal, Christian M. Appendini, Eugene C. Rankey
Journal of Sedimentary Research (SEPM)
... with the same geomorphology, but different forcings, were run: a waves-only model (no tides or currents), a tide-only model (no waves or currents...
2021
A Practical Review of Migration Issues and Solutions; #40723 (2011)
Ian F. Jones
Search and Discovery.com
..., a confusing plethora of different techniques is available in the industry today, for both the model building and migration phases of a project. Here...
2011
Physical Processes in the Ocean
R. H. Fleming, Roger Revelle
Special Publications of SEPM
... between moving water layers of different velocity are due to the turbulent exchange of particles between the layers. This ex- / Io (: C,- e 'r / o...
1955
Reconstruction of the Subsurface Reflected Wavefield on a Dense Grid from Multisensor Streamer Data
M. Vassallo, K. Eggenberger, D.J. van Manen, P. Watterson, A. Raskopin, A. Özbek
Indonesian Petroleum Association
... are assumed to be linear, and consequently, low-frequency information is extrapolated to high frequencies where aliasing is present. This is the approach...
2013
Abstract: Generalized Frames for Gabor Operators in Seismic Imaging; #90172 (2014)
Michael P. Lamoureux, Gary F. Margrave, Peter C. Gibson
Search and Discovery.com
..., a complex geological region is broken up into small regions of nearly constant velocity, and the wavefield is propagated through each region separately...
2014
FWI derived reflectivity gathers in angle domain
Hu Jin, Simon Luo, Qingqing Liao, Xukai Shen, Ganyuan Xia, Madhav Vyas
International Meeting for Applied Geoscience and Energy (IMAGE)
... stages, FWI uses lower frequencies to obtain low-wavelength components of velocity model to match data kinematically then uses higher frequencies to match...
2024
Modeling of scattering losses using energy transport
Manuel Alejandro Jaimes Caballero, Roel Snieder
International Meeting for Applied Geoscience and Energy (IMAGE)
... a decay in the propagating waves, with the decay time defined by Z Q 1 (s) te f f = ds, (1) path v(s) where v(s) is the medium velocity. This decay must...
2022
Lithologic Prediction from Seismic Attributes in the Balcon Field, Colombia
J. E. Calderon
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... (velocity and acoustic impedance) to changes in rock porosity and lithology. A rock physics analysis was pursued in an effort to understand the relationship...
2004
Weighted stacking of up-and down-going RTM images using peak signal-to-noise ratio analysis
Sérgio Luiz E. F. da Silva, Ammir Karsou, Paulo H. B. Alves, Roger M. Moreira, Jorge Lopez, Marco Cetale
International Meeting for Applied Geoscience and Energy (IMAGE)
...) wavefields separately. Although up-going and downgoing waves illuminate the subsurface in different ways, the resulting seismic images should be equivalent...
2024
Abstract: Inversion Approach to Calculate Instantaneous Frequency; #90174 (2014)
Jiajun Han and Mirko van der Baan
Search and Discovery.com
... the instantaneous spectrum. The signal in Figure 1 is the sum of two chirp signals with different frequencies and amplitudes. After EMD, two chirp...
2014
Clastic TidalitesA Partial Retrospective View
George D. Klein
Special Publications of SEPM
... velocity of 50 cmls dunes with an average threshold velocity of 45 cml of 50 crn/s, dunes with an average threshold velocity of 45 em/ s, and sand waves...
1998
Physical Processes in the Ocean: Part 2: Relation of Oceanography to Sedimentation: PART 1
R. H. Fleming, Roger Revelle
AAPG Special Volumes
... of the frictional stresses between moving water layers of different velocity are due to the turbulent exchange of particles between the layers. This exchange...
1939
Bering Sea Velocity-amplitude Anomalies: Exploring the Distribution of Natural Gas and Gas-hydrate Indicators
Ginger A. Barth, David W. Scholl, and Jonathan R. Childs
AAPG Special Volumes
...Bering Sea Velocity-amplitude Anomalies: Exploring the Distribution of Natural Gas and Gas-hydrate Indicators Ginger A. Barth, David W. Scholl...
2009
Abstract: A Comparison of Standard Migration with EOM for Hussar Data; #90174 (2014)
Thais A. Guirigay, John C. Bancroft, and J. Helen Isaac
Search and Discovery.com
... plot and therefore improve the resolution of velocity analysis over conventional common midpoint gathers. Introduction Migration is one of the most...
2014
Depositional Environment of the St. Peter Sandstone Deduced by Textural Analysis
E. J. Amaral, W. A. Pryor
Journal of Sedimentary Research (SEPM)
...., v. 6. No. 1, 228 p. DAPPLES, E. C., 1955, General lithofacies relationships of St. Peter Sandstone and Simpson Group: Amer. Assoc. Petroleum...
1977
Geometry of Shelf Sandstone Bodies in the Shannon Sandstone of Southeastern Montana
George W. Shurr
Special Publications of SEPM
... waves wind driven cur related to submarine 1976 There is no pre currents Folger importance of these and indeed different sources may affect...
1984
Brittleness modeling selects optimum stimulation zone in shaly source rocks in the Whangai Formation, New Zealand
Claudio Rabe, Raul Correa Rechden Filho, Jesus Pastor Salazar, Fernando Della Pasqua, Giovanni Chaves Stael, and Luiz Antonio Pierantoni Gamboa
AAPG Bulletin
... evaluated four different definitions of the brittleness index for the Rakauroa Member, the only member drilled in the three study wells. A Python-based...
2021
A Novel Approach to Determine Gas Velocity Profile in Entire Knudsen Number Regime for Nanoporous Shale with Various Pore Geometries
Yu Pang, Dian Fan, Shengnan Chen
Unconventional Resources Technology Conference (URTEC)
..., but they cannot predict the gas velocity profile in the nanochannel or nanopore because the they consist of different flow mechanisms. Figure 1. Gas...
2020
Time-lapse attenuation variations during CO2 injection using DAS VSP data from the CaMI Field Research Station, Alberta, Canada
Yichuan Wang, Donald C. Lawton
International Meeting for Applied Geoscience and Energy (IMAGE)
... sequestration, it is useful to measure time-lapse variations of seismic attenuation. Seismic attenuation directly connects to different petrophysical parameters...
2022
Cyclicity, Tectonics and Coal: Some Aspects of Fluvial Sedimentology in the Brazeau-Paskapoo Formations, Coal Valley Area, Alberta, Canada
J. Ross McLean, Tomasz Jerzykiewicz
Dallas Geological Society
... in the Western Interior of North America; Geol. Assoc. Canada Spec. Paper 13, p. 427-440. Stott, D. F., 1963, The Cretaceous Alberta Group and equivalent...
1977
Cyclicity, Tectonics and Coal: Some Aspects of Fluvial Sedimentology in the Brazeau-Paskapoo Formations, Coal Valley Area, Alberta, Canada
J. Ross McLean, Tomasz Jerzykiewicz
CSPG Special Publications
... in the Western Interior of North America; Geol. Assoc. Canada Spec. Paper 13, p. 427-440. Stott, D. F., 1963, The Cretaceous Alberta Group and equivalent...
1977
Integrating transitional-flow signatures into hybrid event beds: implications for hybrid-flow evolution on a submarine lobe fringe
Piotr Łapcik, Jaco H. Baas
Journal of Sedimentary Research (SEPM)
... fringe and distal fringe of a submarine fan (Silurian Aberystwyth Grits Group and Borth Mudstone Formation, West Wales, U.K.), transitional-flow...
2024
Cyclostratigraphy and Chronology of the Albian Stage (Piobbico Core, Italy)
Alessandro Grippo, Alfred G. Fischer, Linda A. Hinnov, Timothy D. Herbert, Isabella Premoli Silva
Special Publications of SEPM
...). The group in the 30–60 cm bracket corresponds to the stratigraphic bundle, identified by de Boer (1982), Herbert and Fischer (1986), and Park and Herbert...
2004
Lithological and paleocommunity variation on a Mississippian (Tournaisian) carbonate ramp, Montana, USA
Garett M. Brown
PALAIOS
... in bioturbation intensity observed in the lower Madison Group. Different burrowing structures are preserved in hard, muddy, or sandy substrates (Taylor et al. 2003...
2021
Traveltime Computations for Locating the Source of Micro Seismic Events and for Forming Gridded Traveltime Maps
John C. Bancroft
Search and Discovery.com
... of the fraccing process. The velocity is assumed to be constant between the source and receiver locations. In a similar application, unstable geological...
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