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The AAPG/Datapages Combined Publications Database

Showing 20,858 Results. Searched 200,616 documents.

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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, DEPOKŽ 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

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