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The AAPG/Datapages Combined Publications Database
Showing 20,858 Results. Searched 200,616 documents.
Longshore Drift: Trapped in an Expected Universe
J.A.G. Cooper, O.H. Pilkey
Journal of Sedimentary Research (SEPM)
..., S.B., 2002, Process-response modeling of wave-dominated coastal systems: simulating evolution and stratigraphy on geological timescales: Journal...
2004
Nonlinear LS-RTM based on the seismic scale separation and full-wavefield multiparameter FWI
ystein Korsmo, Yang Yang, Nizar Chemingui, Andrey Pankov, Antonio Castiello
International Meeting for Applied Geoscience and Energy (IMAGE)
... acoustic wavefield to update the velocity and reflectivity models, our solution utilizes an alternative formulation of the wave-equation, based...
2022
Endolithic Infestation of Carbonate Substrates Below the Sediment-Water Interface
Jeffrey A. May , Ronald D. Perkins
Journal of Sedimentary Research (SEPM)
... the sediment-water interface was that of spherical, hemispherical, or flattened discoid forms believed to be growth variants of the same organism, herein...
1979
Determination of Cementation Exponent (M): Chapter II
George B. Asquith
AAPG Special Volumes
...: Nugent (1984): [EQUATION] The author has found that the Nugent (1984) formula works well in carbonates with vuggy and fossilmoldic porosity...
1985
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
... or two-way, travel time can be computed from: , (2) The equation (2) is known as the double square root (DSR) equation and defines the traveltime...
2014
Abstract: Seismic Source Wavelet Estimation and Sparse-spike Deconvolution; #90174 (2014)
Zhengsheng Yao and Mike Galbraith
Search and Discovery.com
... of great interest in current research (e.g. Dondurur, 2010). Solving equation (1) without knowing both r and h is categorized as blind deconvolution...
2014
Poisson binomial-based random undersampling scheme for near-surface compressive sensing
Sayan Mukherjee, Yunyue Elita
International Meeting for Applied Geoscience and Energy (IMAGE)
.... We present a segmented Poisson Binomial undersampling scheme. Our approach is motivated by the fundamentals of surface wave propagation in the near...
2022
Optimized transparent boundary conditions for wave propagation
G. Roncoroni, B. Arntsen, E. Forte, M. Pipan
International Meeting for Applied Geoscience and Energy (IMAGE)
... insight into ongoing physical processes. Computing the wave equation in gradients, extend our capabilities to accommodate mutual parameter variations...
2024
A Compartmentalized Carbonate Reservoir in the Nesson Zone of the Mississippian Mission Canyon Formation, Williston Basin, North Dakota: A Case Study from Glass Bluff Field
Jo Ann Locklin, Jeffrey N. Damp
Williston Basin Symposium
... fragments). Origin of Pisoids and Laminated Crusts Shinn (1986, p. 29) described laminated crusts and spherical pisoids...
1995
Origin of Recent Insular Phosphate Rock on a Coral Cay--Raine Island, Northern Great Barrier Reef, Australia
Julian C. Baker , , John S. Jell , Jennifer L.F. Hacker , Kim A. Baublys
Journal of Sedimentary Research (SEPM)
... consists of calcareous sand and rubble that has accumulated on the reef flat since 4780 (± 190) ka as a result of wave action at or near present-day sea...
1998
The Great Salt Lake - an Overview
Robert E. Cohenour
Utah Geological Association
.... The brine weight of 76 lb/ft3 (1217 kg/m3) operating in conjunction with wave action is a forceful agent of erosion. Currents The distribution...
1987
Plotting Equation for Gaussian Percentiles and a Spreadsheet Program for Generating Probability Plots: REPLY
James H. Balsillie, Joseph F. Donoghue, Kenji M. Butler, Jennifer L. Koch
Journal of Sedimentary Research (SEPM)
...Plotting Equation for Gaussian Percentiles and a Spreadsheet Program for Generating Probability Plots: REPLY James H. Balsillie, Joseph F. Donoghue...
2003
Abstract: On Choosing Differential Operators; #90171 (2013)
John C. Bancroft
Search and Discovery.com
... filters to reduce aliasing, finite difference solutions to the wave equation, or wavelet correction when modelling with diffractions or migrating...
2013
Abstract: On Choosing Differential Operators; #90171 (2013)
John C. Bancroft
Search and Discovery.com
... filters to reduce aliasing, finite difference solutions to the wave equation, or wavelet correction when modelling with diffractions or migrating...
2013
Unconventional Carbonate Reservoir Characterization Using Sonic Velocity and Characterization of Pore Architecture: An Example From the Mid-Continent Mississippian Limestone; #50979 (2014)
Beth Vanden Berg, G. Michael Grammer, Gregor Eberli, Ralf Weger
Search and Discovery.com
...-, and fifth-order scale. Acoustic response (compressional and shear wave) for a sub-set of samples from the Mississippian Limestone varies from 6500...
2014
Filter Or Conveyor? Establishing Relationships Between Clinoform Rollover Trajectory, Sedimentary Process Regime, and Grain Character Within Intrashelf Clinothems, Offshore New Jersey, U.S.A.
Grace I.E. Cosgrove, David M. Hodgson, Miquel Poyatos-Moré, Nigel P. Mountney, William D. McCaffrey
Journal of Sedimentary Research (SEPM)
... dominated by rounded, highly spherical very fine- and fine-grained sands, associated with wave reworking landward of the clinoform rollover; ii) minimal...
2018
Anisotropic PP and PSv Prestack Depth Migration of 4C (OBC) Seismic Data, Offshore Trinidad
Tony Johns
Search and Discovery.com
... growth fault. Details of the P- and PSv-wave processing of this dataset through anisotropic prestack time migration were previously described (Johns et...
Unknown
Anisotropic PP and PSv Prestack Depth Migration of 4C (OBC) Seismic Data, Offshore Trinidad
Tony Johns
Search and Discovery.com
... growth fault. Details of the P- and PSv-wave processing of this dataset through anisotropic prestack time migration were previously described (Johns et...
Unknown
A frequency-dependent fluid prediction method based on a novel fluid indicator incorporating anisotropic effect and squirt flow
Tianjun Lan, Zhaoyun Zong
International Meeting for Applied Geoscience and Energy (IMAGE)
..., during seismic wave propagation, pore fluids can experience wave-induced fluid flow, resulting in squirt flow. In order to address these issues, starting...
2023
Image - Rays and the Treatment of Inhomogeneity in Migration
L. Hatton
Southeast Asia Petroleum Exploration Society (SEAPEX)
... in the treatment of inhomogeneity in wave-equation migration processes. A further object is to present some heuristic rules, using image-ray tracing, to enable...
1980
Well Log Data Conditioning Using a Rock Physics Modeling Approach: Examples From the Banyu Urip Field, Cepu KKS, East Java Basin
Shiyu Xu, Soman Chacko
Indonesian Petroleum Association
... Urip wellseismic ties. For instance, our rock physics model gave a much better prediction of measured S-wave logs (and hence Vp/Vs) when assuming 100...
2008
Prediction of Fracture Porosity from Well Log Data by Artificial Neural Network, Case Study: Carbonate Reservoir, DEPOK Field
Okok Wijaya, Pebrian Tunggal P, Ahmat Dafit Hasim, Depta Mahardika, Sungkono, Bagus Jaya S
Indonesian Petroleum Association
... plot analysis shows the relationship between log data and fracture porosity log. From the result, it can be seen that density and p-wave velocity have...
2015
First-Arrival Traveltime Inversion in the CMP Domain: Method and Application
Search and Discovery.com
... in CMP domain from the 2D seismic data. Method First-Arrival Traveltime Description The first-arrival can be considered as a refracted wave arrival...
2013
Abstract: Automatic Time Picking and Velocity Determination on Full-Waveform Sonic Logs; #90171 (2013)
Lejia Han, Joe Wong, John C. Bancroft, and Robert R. Stewart
Search and Discovery.com
... processing. P-wave seismograms were acquired by a full-waveform sonic logging tool with a monopole source in the University of Calgary test well. The logging...
2013
Abstract: Applicability of TTI RTM to Structured Land Datasets; #90172 (2014)
Charles Ursenbach, Yan Yan
Search and Discovery.com
... as dictated by the wave equation. Other methods involve approximations to the wave equation, such as ray tracing or directional propagation, and thus may...
2014