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The AAPG/Datapages Combined Publications Database
Showing 49,596 Results. Searched 195,364 documents.
An acoustic wave equation with the gradients of velocity and density
Jianyong Bai, Orhan Yilmaz
International Meeting for Applied Geoscience and Energy (IMAGE)
...An acoustic wave equation with the gradients of velocity and density Jianyong Bai, Orhan Yilmaz An acoustic wave equation with the gradients...
2023
Seismic Modeling and Imaging - Making Waves, by Phillip Bording and Larry Lines, #40066
Search and Discovery.com
N/A
Phase-Ray Maslov Summation: A Complete Finite-Frequency Ray Method
Tianfei Zhu
Search and Discovery.com
..., however, exact solutions to the eikonal equation 9 are in general unattainable. Zhu (1988) has shown that equation 9 can be solved by asymptotic expansion...
Unknown
Phase-Ray Maslov Summation: A Complete Finite-Frequency Ray Method
Tianfei Zhu
Search and Discovery.com
..., however, exact solutions to the eikonal equation 9 are in general unattainable. Zhu (1988) has shown that equation 9 can be solved by asymptotic expansion...
Unknown
Finite Difference Modelling: Part III: Time-Step n-Tupling
Lasse Amundsen, Ørjan Pedersen, Martin Landrø
GEO ExPro Magazine
... (see Amundsen and Pedersen (2017) for the general formula). Numerical Example We solve the 2-D acoustic wave equation by using the π 3 4/1 –4/3...
2018
Finite Difference Modeling: Part I: Become Expert in Five Minutes
Lasse Amundsen, Ørjan Pedersen, Martin Landrø
GEO ExPro Magazine
.... It turns out that solving the wave equation, as most other differential equations, can be quite hard, and there is no general method that solves every...
2018
Abstract: Complex-beam Migration: Non-recursive and Recursive Implementations; #90187 (2014)
Tianfei Zhu
Search and Discovery.com
... and WEM is of the same-order approximation as the ray and beam methods to the elastic wave equation in general inhomogeneous earth media (e.g., Ben...
2014
Abstract: Calculation of Amplitude and Velocity in General Anisotropic Media; #90224 (2015)
M. Malehmir and D. R. Schmitt
Search and Discovery.com
... propagation, lets start with general wave equation 1 and plane wave equation 2. 1 ∂ ρ ui = ci jkl ¨ 2 ∂xj ∂ uk ∂ ul + ∂ xl ∂ xk uk = A0 Pk e(−iK(n.r...
2015
Extended Abstract: What is Wave Equation Pre-stack Depth Migration? An Overview
Andrew Long
Petroleum Exploration Society of Australia (PESA)
... daring to investigate the various options for pursuing wave equation depth migration will be exposed to terms such as explicit solutions, implicit...
2004
Abstract: Evaluation of the Potential of Wave Equation Depth Imaging Technologies on Land, by Morgan P.Brown and Joseph H. Higginbotham; #90076 (2008)
Search and Discovery.com
2008
Recent Developments in Marine Acquisition and Data Processing Technology to Improve Imaging through Complex Overburdens
Timothy Bunting, Jerry Kapoor, Nick Moldoveanu, Jeremy Browett
GCAGS Transactions
... in imaging the subsalt reflectors in the SEG Seam model. Imaging Solutions All imaging algorithms solve for the wave equation, but due to computer...
2011
TTI Wave Equation Migration by Phase-Shift Plus Interpolation
Richard A. Bale
Search and Discovery.com
...TTI Wave Equation Migration by Phase-Shift Plus Interpolation Richard A. Bale TTI Wave Equation Migration by Phase-Shift Plus Interpolation Richard...
Unknown
TTI Wave Equation Migration by Phase-Shift Plus Interpolation
Richard A. Bale
Search and Discovery.com
...TTI Wave Equation Migration by Phase-Shift Plus Interpolation Richard A. Bale TTI Wave Equation Migration by Phase-Shift Plus Interpolation Richard...
Unknown
Abstract: Regular Grids Travel Time Calculation Fast Marching with an Adaptive Stencils Approach; #90187 (2014)
Zhengsheng Yao, Mike Galbraith, and Randy Kolesar
Search and Discovery.com
... itself is a linear approximation and the wavefront is, in general, not a plane wave, especially near the source, a high order scheme in such a case...
2014
Exact kinematic behavior of the P-SV converted wave in a vertical transversely isotropic medium
Guillaume Cambois
International Meeting for Applied Geoscience and Energy (IMAGE)
..., but not a solution to Equation 19 (unless both terms are 0, which only occurs when Equations 14 or 15 hold). Therefore, the general solution to Equation 19 can only...
2023
Wave equation traveltime Kirchhoff with real data applications
Hu Jin, Vladimir Bashkardin, Petr Jilek, Chandan Kumar, Han Liu, John Etgen, Madhav Vyas, Ganyuan Xia
International Meeting for Applied Geoscience and Energy (IMAGE)
... improves the traveltime calculation by propagating lowfrequency wavefields using finite-difference solutions of the wave equation (Jin and Etgen, 2020...
2023
Abstract: Multi-Scale 2D Acoustic Full Waveform Inversion with High Frequency Impulsive Source; #90187 (2014)
Vladimir N. Zubov, Michael P. Lamoureux, and Gary F. Margrave
Search and Discovery.com
... and adjoint problem solutions A forward wave propagation boundary problem (equation 1) is formulated for the acoustic equation using a positive...
2014
Viscoelastic anisotropic seismic wave modeling using recursive convolution method and curvilinear collocated finite difference method for different boundaries
Chao Jin, Bing Zhou
International Meeting for Applied Geoscience and Energy (IMAGE)
..., UAE Summary We proposed a generalized viscoelastic anisotropic wave equation based on the General Maxwell Body, which can accommodate various medium...
2023
A Practical Review of Migration Issues and Solutions; #40723 (2011)
Ian F. Jones
Search and Discovery.com
..., both of which are numerical solutions to the wave equation. These two categories are the integral methods (including Kirchhoff and beam techniques...
2011
Damped least squares-based deterministic PP wave and SH-SH wave joint inversion method
Ying Lin, Guangzhi Zhang, Baoli Wang, Siyuan Chen, Minmin Huang
International Meeting for Applied Geoscience and Energy (IMAGE)
... coefficients in the multi-wave case is analyzed based on the approximation equation of PP wave and SH-SH wave, and the incidence angle range of the joint...
2023
Evaluation of Wave-Generated Longshore Current Velocities and Sand Transport Rates on Beaches
Paul D. Komar
Special Publications of SEPM
... interact with the wave surf to produce a longshore transport of sand A simple equation has been found with which this longshore current velocity can...
1987
The Developing Role of Analysis in the Design of Floating Production Systems
D. B. Melver, D. Cash
Indonesian Petroleum Association
... been modified to calculate these long period and mean wave forces. This is discussed in more detail later. Strip theory programs have not, in general...
1985
Waste Disposal in Saline Aquifers Affected by Geothermal Heating: ABSTRACT
H. R. Henry, F. A. Kohout
AAPG Bulletin
..., and the heat diffusion equation are solved simultaneously on a high-speed digital computer. Obtaining theoretical solutions comparable to the model data...
1971
Estimation of Natural Gas Reserves
P. McDonald Biddison
AAPG Special Volumes
..., for air 53.34 [EQUATION (1)] [EQUATION (2)] Consider a column of gas of 1 square foot cross-sectional area. At a depth L where the pressure is P...
1935
Seismic Migration: Part 7. Geophysical Methods
Ken Larner, David Hale
AAPG Special Volumes
... it is done. All of the many methods of doing migration are founded on solutions to the scalar wave equation, a partial differential equation that models how...
1992