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The AAPG/Datapages Combined Publications Database

Showing 73,276 Results. Searched 200,691 documents.

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Wave Modeling and Hydrodynamics

J. Ian Collins

Special Publications of SEPM

... is ware namely gT2 L Mathematically continuity 72 I boundary condition w function of depth and period follows 4 T the problem of linear wave...

1987

Chalk porosity and sonic velocity versus burial depth: Influence of fluid pressure, hydrocarbons, and mineralogy

Ida L. Fabricius, Lars Gommesen, Anette Krogsboll, Dan Olsen

AAPG Bulletin

...). The modeled porosity and velocity-depth trends are thus stress controlled and seem to be related, as would be expected from the almost linear observed...

2008

Time Depth Conversion of a Prospect With Near-Surface Velocity Anomalies Using Stacking Velocites and PSDM Velocities: A Comparison

Tan Boon Hua, Lothar Schulte

Indonesian Petroleum Association

...Time Depth Conversion of a Prospect With Near-Surface Velocity Anomalies Using Stacking Velocites and PSDM Velocities: A Comparison Tan Boon Hua...

2011

Seismic Imaging in Anisotropic Media. or... "A Better Way to Moveout and Migrate Long Offset Data"

Rolf Klotz, Martin Bayly, Sue Downie, Swee Leng

Indonesian Petroleum Association

... reflection angles are retained in processing for studies such as amplitude variation with offset (AVO) and depth conversion velocity analysis. Anisotropic...

2000

Abstract: AVAZ Inversion for Fracture Orientation and Intensity: a Physical Modeling Study; #90187 (2014)

Faranak Mahmoudian and Gary F. Margrave

Search and Discovery.com

... (Crampin, 1981). Using P-wave NMO velocity variation with azimuth (VVAZ), fracture orientation is considered to be in the direction of the fast P-wave...

2014

VTI anisotropic stiffness tensor logging: A case study

Kristoffer Walker, Alexei Bolshakov, Gama Firdaus, Tim Fischer, Luca Duranti, Luisa Crousse, Mason Edwards

International Meeting for Applied Geoscience and Energy (IMAGE)

... a workflow is provided for obtaining Thomsen VTI parameters (ϵ, γ, and δ) as a function of depth. First, highresolution sonic log processing reduces thin...

2024

Near-Shore Ripples: Some Hydraulic Relationships

A. S. Trenhaile

Journal of Sedimentary Research (SEPM)

... well explained of the ripple parameters investigated, although velocity was shown to be related to water depth and wave height. BAGNOLD, R. A., 1946...

1973

Design and Calibration of a Photo-extinction Settling Tube for Grain Size Analysis

Asahiko Taira , Peter A. Scholle

Journal of Sedimentary Research (SEPM)

... particle in a given depositional environment is usually controlled by its settling velocity, this being a function of its volume, density, and shape...

1977

Inversion of Magnetotelluric (MT) Data with Enhanced Structural Fidelity, #42333 (2018).

Federico Golfre Andreasi, Simone Re, Federico Ceci, Luca Masnaghetti

Search and Discovery.com

... took the velocity model that was used to generate the seismic traces (Figure 1a) and we mapped the velocity into the resistivity using the values...

2018

The Seismic and Geological Definition of a Reef

R. A. Maxwell, W. Thomsen, F. Wilson

Oklahoma City Geological Society

... VELOCITY CURVES FROM DYNAMIC PLOTS Figure 7. INTERVAL VELOCITY COMPARISON End_Page 270------------------------ Figure 8. DEPTH SECTION Figure 9...

1973

DAS dispersion image analysis for landslide monitoring

Steve Cole, Paul Clarkson, Martin Karrenbach, Victor Yartsev

International Meeting for Applied Geoscience and Energy (IMAGE)

.... The surface waves exhibit dispersion, where their frequency content changes as a function of velocity. Lower frequencies penetrate to greater depths...

2022

Integration of Vertical Seismic, Surface Seismic, and Well-log Data at the Mallik 2L-38 Gas-hydrate Research Well, Mackenzie Delta, Canada

M. W. Lee, T. S. Collett, W. F. Agena

AAPG Special Volumes

... sediments in the depth interval 600900 m (19682953 ft) is estimated to be approximately 65 using equation 4, with the interval velocity of 2100 m...

2009

Abstract: Prestack Depth Migration with the Gabor Transform; #90211 (2015)

Yongwang Ma and Gary Margrave

Search and Discovery.com

... migration algorithm using the Gabor transform with application to the Marmousi acoustic dataset. The imaging results show a very promising depth imaging...

2015

Discharge-Sediment Dynamics of the Lower Mississippi River

Joann Mossa

GCAGS Transactions

... between discharge and the sediment characteristics and their downstream variations in the lower Mississippi River were examined using a linear least...

1988

A Review of Petrophysics of Cooper Basin Reservoirs in South Australia

Chris Porter

Petroleum Exploration Society of Australia (PESA)

.../ Eromanga sequence Vsh is not a linear function of GR response. In fact, under the heading 'Cation exchange capacity' Morton stated: However, as Figure 11...

1990

Dynamics of Bedforms in the Lower Mississippi River

David J. Harbor

Journal of Sedimentary Research (SEPM)

..., whereas others are more rounded and symmetrical. Despite the great depth and velocity (Table 1), all of the bedforms plot in the dune field using...

1998

High-resolution seismic reservoir monitoring with multitask and transfer learning

Ahmed M. Ahmed, Ilya Tsvankin, Yanhua Liu

International Meeting for Applied Geoscience and Energy (IMAGE)

... features of the network include adjustments to accommodate larger models and optimization of the activation function [Gaussian Error Linear Unit (GELU...

2024

Kriging-based surrogate models for convergence acceleration of Markov chains: An example of magnetotellurics-dix joint inversion

Alejandro Quiaro, Mauricio D. Sacchi

International Meeting for Applied Geoscience and Energy (IMAGE)

... function depending on lithologic variations. In this petrophysical relationship, the assumption is that the velocity is a function of depth and lithology...

2024

Abstract: Depth Conversion Methodology using a Stochastic Velocity Model for the McMurray Formation; #90171 (2013)

Darren Hinks, Tom Cox, Stephanie Schmidt, Dale Vanhooren, and Sergei Filin

Search and Discovery.com

...Abstract: Depth Conversion Methodology using a Stochastic Velocity Model for the McMurray Formation; #90171 (2013) Darren Hinks, Tom Cox, Stephanie...

2013

Loss of Capacity, Not Competence, As the Fundamental Process Governing Deposition from Turbidity Currents

Richard N. Hiscott

Journal of Sedimentary Research (SEPM)

... initial suspended load to coincide with the onset of deposition from a turbidity current with a specified shear velocity and flow depth. Simulated...

1994

Seismic Signature of CO2 Flooding in Tuscaloosa Sandstone; #40942 (2012)

Avinash Mohapatra, Chandra S. Rai, Carl Sondergeld, and Trevor L. Richards

Search and Discovery.com

... velocity measurements as a function of effective pressure showed Biot effective pressure coefficient (n) is approximately equal to 1.0 and independent...

2012

Hydromechanical Principles of Sediment Structure Formation

L.I. Briggs, G. V. Middleton

Special Publications of SEPM

... OF SEDIMENT FORMATION diffusion or exchange of momentum 3 1000 It is found experimentally that when the velocity or depth is large...

1960

Computer Modeling of the Evolution of Fluvial Systems

Mark R. Vining

GCAGS Transactions

... by minor groundwater interaction. Flow depth and velocity are calculated from discharge and bed roughness using the von Karman frictional flow equation...

1998

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