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The AAPG/Datapages Combined Publications Database

Showing 20,829 Results. Searched 200,357 documents.

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Abstracts: Converted Wave Processing in the EOM Domain; #90173 (2015)

Thais A. Guirigay and John B. Bancroft

Search and Discovery.com

... wave. The processing methods start with the DSR equation (1) or (3), with the appropriate P and S velocities for each leg of the ray path...

2015

3D-9C seismic survey for direct S-wave processing and interpretation

Rui Zhang, Zhiwen Deng, Yuanyuan Yue, Yan Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

...3D-9C seismic survey for direct S-wave processing and interpretation Rui Zhang, Zhiwen Deng, Yuanyuan Yue, Yan Wang 3D-9C seismic survey for direct...

2022

Abstract: The Phase Shift Time Stepping Equation and the Marmousi Data Set; #90171 (2013)

Ben D. Wards, Gary F. Margrave, and Michael P. Lamoureux

Search and Discovery.com

... that does not use finite differences. An analytical solution to the acoustic wave equation (Etgen, 1989; Tal-Ezer, 1986) is computed exactly...

2013

The Attenuation Effects of Surface-Wave Propagations on Rockmass Using SASW Method

Suharsono, Abdul Rahim Samsudin

Geological Society of Malaysia (GSM)

... wave propagation in the grounds leads to the following equation for estimating the values of coefficient a: 21tfD a=- vR (4) where VR...

2003

Abstract: The Application of Extreme Attributes of PS Converted Wave; #90171 (2013)

Xiucheng. Wei, Xiang-Yang Li, Tiansheng Chen, and Lihua Jia

Search and Discovery.com

... attributes of PS-wave are not studied as much as for P-wave. Using the empirical Gardner equation describing the relationship between density and P...

2013

New numerical schemes for time-domain seismic wave modeling in viscoelastic media

Bing Zhou, Moosoo Won, Chao Jin

International Meeting for Applied Geoscience and Energy (IMAGE)

...r the 1st-order or 2nd-order wave equation, e.g. basing on equations (5), (6), (8), (9) and (10), one obtains the two versions of wave equatio...

2022

Near-surface modeling by surface wave tomography inversion in oil and gas exploration

Wen Peng, Le Li, Zhonglin Cao, Guangying Wang, Pengfei Duan, Heng Zhang

International Meeting for Applied Geoscience and Energy (IMAGE)

... the ray path and travel time of the single frequency surface wave component, a tomographic inversion equation can be established to obtain a nearsurface...

2024

Characteristics of Velocity-Porosity Relationships in the Baturaja Limestone Reservoir: A Case Study in the South Sumatra Basin

Muhamad Noor Ali

Indonesian Petroleum Association

... equation. Modeling obviously requires prior knowledge of velocities and densities. Shear wave velocities (S-wave) are much more difficult to obtain...

2002

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

Computation of phase velocity direction using normalized wavefields

Kwangjin Yoon, Jungkyun Hyun

International Meeting for Applied Geoscience and Energy (IMAGE)

...le computation of seismic wave propagation direction using equation 1 in a homogeneous isotropic media. The wave propagation direction can be stabiliz...

2024

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)

... the demonstration that the converted wave cannot physically triplicate. Incidentally, the case where Equation 42 is zero yields anisotropy values...

2023

Effect of Artificial Sea-Grass on Wave Energy and Near-Shore Sand Transport

Christopher J. Wayne

GCAGS Transactions

... the average wave energy per unit area of wave (E). Energy density can be found by measuring wave heights and substituting into the following equation: E...

1974

Spherical-Wave Computational AVO Modelling in Elastic and Anelastic Isotropic Two-Layer Media; #41564 (2015)

Arnim B. Haase, Charles P. Ursenbach

Search and Discovery.com

..., in the anelastic situation velocities are complex and must be recomputed for every frequency point, according to Equation 4. The P-wave quality...

2015

Full Waveform Acoustic Logging: Part 7. Geophysical Methods

C. H. Cheng

AAPG Special Volumes

... versus offset studies, and elastic wave equation migrations, among many other uses. The FWAL is also commonly used to identify and characterize fractures...

1992

Pyseis: A high-performance, user-friendly Python package for GPU-accelerated seismic modeling and subsurface imaging

Stuart Farris, Guillaume Barnier, Ettore Biondi, Robert Clapp

International Meeting for Applied Geoscience and Energy (IMAGE)

... the power of low-level CUDA and C++ for computation, and provides a user-friendly Python interface for wave-equation modeling and inversion...

2023

Finite Difference Modelling: Part IV

Lasse Amundsen, Ørjan Pedersen, Martin Landrø

GEO ExPro Magazine

... the discussion that was started in GEO ExPro Vol. 15, No. 2. The finite difference method applied to the acoustic wave equation gives beautiful wave...

2019

Borehole tube wave generation by an incident P-wave at a fluid-filled fracture

Abdullah Alsawidan

International Meeting for Applied Geoscience and Energy (IMAGE)

... We define the change in fracture width in equation 1 when a compressional wave with a stress pulse 𝜎! (𝑡) impinges on the fracture wall as (Ionov, 2...

2022

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

... (a) a plane wavefront and (b) circular wave from a point source propagating through a grid model. Numerically solving this equation produces first arrival...

2014

Abstract: Complex-beam Migration: Non-recursive and Recursive Implementations; #90187 (2014)

Tianfei Zhu

Search and Discovery.com

... variations are large. We show that the new method is a true-amplitude extension of the phase-shift wave-equation migration method into media...

2014

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)

...Wave equation traveltime Kirchhoff with real data applications Hu Jin, Vladimir Bashkardin, Petr Jilek, Chandan Kumar, Han Liu, John Etgen, Madhav...

2023

ABSTRACT: Elastic Wave Velocity Model Analyses for Gas-Hydrate Bearing Sediments; #90061 (2006)

Dong Wang and Xiuming Wang

Search and Discovery.com

...ABSTRACT: Elastic Wave Velocity Model Analyses for Gas-Hydrate Bearing Sediments; #90061 (2006) Dong Wang and Xiuming Wang Elastic Wave Velocity...

2006

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