What is Horizontal Resolution?

L. R. Denham, R. E. Sheriff

Indonesian Petroleum Association

... horizontal and vertical – are often not strictly valid, particularly in f-k migration; and in the finite difference method two series expansions are truncated...

Image - Rays and the Treatment of Inhomogeneity in Migration

L. Hatton

Southeast Asia Petroleum Exploration Society (SEAPEX)

... Research Project. The basic methods introduced by Claerbout (1976) involve finite-difference solutions to a modified form of the scalar wave equation...

Seismic Migration: Part 7. Geophysical Methods

Ken Larner, David Hale

AAPG Special Volumes

... of the curves, one curve for each sample point in the output migrated section. Finite difference migration numerically integrates the wave equation...

GPU-based 3D anisotropic elastic modeling using mimetic finite differences

Harpreet Singh, Jeffrey Shragge, Ilya Tsvankin, Fatmir Hoxha

International Meeting for Applied Geoscience and Energy (IMAGE)

... remains challenging. Finite-difference (FD) implementations using centered Taylorseries coefficients on single staggered grids suffer from reduced...

Building high-resolution models and synthetic seismic data to evaluate interpretation scenarios

Tiago Santos Cabral, Rodrigo Lopes Fernandes, Daina Popic Bendoraitis, Josair Estrela Gonalves Junior, Luiz Alberto Santos

International Meeting for Applied Geoscience and Energy (IMAGE)

... inspired by poststack inversion to build high-resolution models that, combined with finite-difference modeling, can be used to evaluate interpretation...

Acoustic/elastic wavefield injection and reconstruction from ocean-bottom data for elastic RTM

Bingkai Han, Weijian Mao, Xiao-Bi Xie

International Meeting for Applied Geoscience and Energy (IMAGE)

... and/or elastic domains causally or anticausally in time. We use the MacCormack finite-difference (FD) as the wave propagator, the collocated-grid...

Consideration to Data Driven Solutions for the Acquisition of New Marine 3D Seismic Data

Julie Willmore, Brad Torry, Henrik Roende, Chris Egger, Adriana Thames

GCAGS Transactions

... study was conducted using 3D ray based modelling (NORSAR™) with unrestricted offsets and azimuths and 2D finite difference modelling of various cable...

Abstract: Understanding the Regional Hydrodynamics in the Normal and Sub-hydrostatic Regimes of the Canadian Rockies Foreland Basin, Alberta; #90172 (2014)

Abhijit Mukherjee, Steven Lyster, Sheila Stewart, Benjamin J. Rostron

Search and Discovery.com

... mapped and discretized in a 3-D finite difference grid cumulatively using >106 data points (Figure 1a, b). Data for groundwater head (n = 70600...

2-D and 3-D Prestack Depth Migration for Complex Geologic Structures Offshore Indonesia

M. Murphy, R. Ottolini, R. Estill, E. Lumadyo, M. Mathias

Indonesian Petroleum Association

... proprietary 3-D prestack depth migration application (KZMIG). KZMIG uses a dynamic ray tracing method rather than the Vidale finite-difference method to compute...

Abstracts: Microseismic Event Models from Finite-differencing with Corrections; #90173 (2015)

Peter M. Manning

Search and Discovery.com

... Peter M Manning* CREWES project, University of Calgary [email protected] Summary Finite-difference elastic modeling is suggested as a means...

History of Hydrocarbon Generation in the Tembungo Field, Offshore Northwest Sabah

Mohammad Jamaal Hoesni, Mohd Nasir Che Mood

Geological Society of Malaysia (GSM)

... generation and migration has been studied using a two-dimensional finite difference basin modelling approach. Backstripping exercises suggest that high...

Abstracts: Getting Better Shear-wave Data over Heavy Oil: Rational for Buried Acquisition; #90173 (2015)

Rob Kendall and Richard A. Bale

Search and Discovery.com

... and PS images from the Marmousi-2 dataset, which is an elastic finite difference modelled dataset with no absorption. As seen in Figure 1...

Abstract: Imaging Oblique Reflectors with Prestack Migration; #90174 (2014)

John C. Bancroft, Thais Guirigay, and Helen Isaac

Search and Discovery.com

...., 1987, Cascaded migrations: Improving the accuracy of finite difference migration, Geophysics, Vol. 52 p. 618 – 643. Rothman, D. H., Levin, S.A....

Abstract: Time Domain Least-squares Prestack Migration; #90172 (2014)

Ricardo C. Rebollo, Mauricio D. Sacchi

Search and Discovery.com

... with the finite difference method from the reflectivity model in Figure 1a. Figure 2a is the PSTM image obtained by standard pre-stack time domain Kirchhoff...

ABSTRACT: Reservoir Performance Prediction Methods Based on Fractal Geostatistics, by A. S. Emanuel, R. A. Behrens, T. A. Hewett, and G. K. Alameda; #91030 (2010)

Search and Discovery.com

Advanced Methods to Build Complex Earth Models for Seismic Modeling

Search and Discovery.com

Modeling of Electromagnetic Response on Rugged Seafloor by Using Finite-Difference Method

Search and Discovery.com

A stable TTI acoustic wave equation

Linbin Zhang, Edose Ohen

International Meeting for Applied Geoscience and Energy (IMAGE)

...) The finite difference method is used to compute the spatial partial derivatives in (18) and (19). For example, 𝜕𝑃 𝜕𝑥 = 𝑃(𝑥+∆𝑥)−𝑃(𝑥−∆𝑥) 2...

Groundwater Modeling

Uriel Oko

Special Publications of SEPM

..., were developed by W. C. Walton in 1989 (Walton, 1989b) and are distributed by Lewis Publishers, Inc. These programs solve large sets of finite difference...

Marchenko-based internal multiple attenuation feasibility analysis for a thin-layered media in ultra-shallow water OBN from offshore Middle East

Frederico Xavier de Melo, Suyang Chen, Luis Salinas, Shotaro Nakayama, Nozomi Yamamoto

International Meeting for Applied Geoscience and Energy (IMAGE)

... synthetic data through finite-difference modeling. The seismic modeling adopted in this study starts from a 2D finite-difference synthetic simulation...

Implementation aspects of elastic FWI and its application to sparse OBN surveys

Cosmin Macesanu, Faqi Liu, Yi Huang, Hao Hu, Carlos Calderón

International Meeting for Applied Geoscience and Energy (IMAGE)

... manifested as a change in velocity in a direction perpendicular to the interface. This effect is proportional to the finite difference (FD) grid size...

Abstract: Seismic Imaging near and within the Basement Offshore Malaysia; Including Comparisons of Imaging Algorithms (Geophysics Paper 19)

Nabil El Kady, M. Shah Sulaiman, Zabidi M Dom, Tang Wai Hoong, Lee Mei Lu, Pavel Vasilyev, Martin Bayly

Geological Society of Malaysia (GSM)

... Finite Difference model was constructed with similar reflector geometry and velocities. This model produced a similar event on the raw model gathers...

Abstracts: Seismic Wave Propagation and Imaging in Heterogenous Media; #90173 (2015)

Yijian Meng, Emmanuel Bongajum, and Bernd Milkereit

Search and Discovery.com

..., the effect of anisotropy due to heterogeneities in elastic rock properties has been examined using 2-D finite difference elastic wave modeling...

Simulation of Light Hydrocarbon Migration in a Stacked Petroleum Reservoir at Teapot Dome, Wyoming, with Pressurization During Carbon Dioxide Sequestration

Ronald W. Klusman

AAPG Special Volumes

.... The term z is commonly represented by x in finite-difference notation, but the diagram is turned vertically to represent buoyant migration of gas...

Abstract: Simultaneous P-P and P-S Waveform Inversion Algorithm Using Pre-Stack Time Imaging Method ; #90187 (2014)

Hassan Khaniani, John C. Bancroft, and Eric von Lunen

Search and Discovery.com

... a forward modeling and a depth migration. The forward modeling engine, which is usually based on a finite difference solution of the elastic wave equation...