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The AAPG/Datapages Combined Publications Database
Showing 1,126 Results. Searched 200,693 documents.
A comparison of Marchenko multiples elimination schemes based on the beyond Neumann solution
Rodrigo S. Santos, Daniel E. Revelo, Reynam C. Pestana, Victor Koehne, Marcelo S. Souza, Diego F. Barrera, Laila D. L. Vergne
International Meeting for Applied Geoscience and Energy (IMAGE)
... on a portion of the Sigsbee2B model (Figure 1). Thus, we used the finite-difference time-domain modeling code (Thorbecke and Draganov, 2011) for computing...
2024
Preliminary modeling of the long-term fate of CO2 following injection into deep geological formations
Brian R. Strazisar, Chen Zhu, Sheila W. Hedges
Environmental Geosciences (DEG)
...-dimensional finite-difference model (Parkhurst and Appelo, 1999). The advection-dispersion-reaction (ADR) equation,was solved, where C...
2006
Forward Modeling of Seismic Data: Part 7. Geophysical Methods
George Mellman, Paul A. Kunzinger
AAPG Special Volumes
... local solutions as in ray methods. Two commonly used wave methods are the Kirkhhoff (Hilterman, 1970) method and the finite difference method (Kelley et...
1992
Abstract: Velocity Model Calibration Effects on Microseismic Locations; #90187 (2014)
J. Akram and D. W. Eaton
Search and Discovery.com
.... In this paper, we use finite-difference synthetic seismograms to assess the importance of seismic anisotropy (weak transverse isotropy, up to 20...
2014
Abstracts: Nodal Galerkin Methods for Numerical Modelling of Linear Elasticity with Absorbing Boundary Conditions; #90173 (2015)
Matt McDonald, Michael Lamoureux, and Gary Margrave
Search and Discovery.com
... time-stepping algorithms are investigated. In the conclusion we compare various implementations of the method to several finite-difference algorithms...
2015
Seismic Models of a Shelf-margin Depositional Sequence: Upper San Andres Formation, Last Chance Canyon, New Mexico
Jan Stafleu , Mark D. Sonnenfeld
Journal of Sedimentary Research (SEPM)
... software (for instance, a cellular approach as in finite-difference models) but also demands a more detailed nowledge of the areal distribution...
1994
Using Mise-à-la-Masse to Delineate the Migration of a Conductive Tracer in Partially Saturated Basalt
Robin E. Nimmer, James L. Osiensky
Environmental Geosciences (DEG)
..., only about 10 L of concentrated tracer solution are known to have migrated away from the injection well for t1 = 0.83d. Finite difference...
2002
The Future Availability of Groundwater in the Texas Hill Country under Drought Conditions
Robert E. Mace, Ali H. Chowdhury, Roberto Anaya, Shao-Chih Ted Way
Bulletin of South Texas Geological Society
... finite-difference ground-water flow model: U.S. Geological Survey Techniques of Water-Resources Investigations, book 6, variously paginated. Muller, D...
2001
Wellbore Heat Transmission: A Simple Solution Technique
A. J. Durrant, R. K. M. Thambynayagam
Indonesian Petroleum Association
... transient heat conduction equation for the temperature distribution around the wellbore was approximated by finite difference equations on a cylindrical...
1984
Groundwater Flow Model of the Presidio and Redford Bolson Aquifers: Preliminary Calibration Results
Shirley C. Wade
GCAGS Transactions
...-difference ground-water flow model: U.S. Geological Survey, Techniques of Water-Resources Investigations, Book 6, Chapter A1, 576 p. Miyamoto...
2008
Seismic Imaging of the Overturned Limb of a Footwall Syncline in the Alberta Foothills of the Canadian Rocky Mountains and Its Impact on Exploration; #30533 (2017)
Andrew C. Newson
Search and Discovery.com
... synthetic seismic shot records were simulated from this model using a finite-difference numerical representation of the wave equation that included P...
2017
Electromagnetic Scanning Drives Innovative Technology and Business Models
Friedrich Roth, Bard Petter Thrane, David Ridyard, Petter Lindhom
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
..., 24(11), 61–64. [4] Maaø, F.A. [2007] Fast finite-difference time-domain modelling for marine-subsurface electromagnetic problems, Geophysics, 72(2...
2008
The calculation of first-arrival P-wave traveltime for attenuating TTI media
Mengxiu Wang, Jingyi Chen, Zhengcong Zhao, Kaiyuan Ji, Shaoying Chang
International Meeting for Applied Geoscience and Energy (IMAGE)
... marching method and finite-difference method can be applied to equation (5a) and (5b) and obtain the realand imaginary-part traveltime successively...
2022
Sparse OBN acquisition in shallow water at CCS Sleipner field: The role of multiples in FWI
Sandrine David, Eddie Cho, Graeme Stock, Fons ten Kroode, M.A.H Zuberi
International Meeting for Applied Geoscience and Energy (IMAGE)
..., through acoustic finite difference modelling with an absorbing free surface condition. The synthetic data was subsequently used in an FWI sequence (up...
2024
Subsalt imaging using elastic FWI: A case study from Walker Ridge, Gulf of Mexico
Chirag Parekh, Andrew Stephenson, Juan Perdomo, Claudia Flores, Christopher McMorland, Matt Vander Griend, Austin Boles, Andrew Fuhrmann
International Meeting for Applied Geoscience and Energy (IMAGE)
..., doi: https://doi.org/10.1190/tle40050342.1. Regone, C. J., 2007, Using 3D finite-difference modeling to design wide-azimuth surveys for improved subsalt...
2024
Abstract: High-resolution Automatic Microseismic Source Detections; #90187 (2014)
Stephen K. Chiu, Ulrich Zimmer, and Michael Davidson
Search and Discovery.com
... observational wells with two sources close to each other. The spatial separation between the two sources is 100 ft. A finite-difference modeling using...
2014
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
... . 2 2 This boundary problem is approximated with a 4th order finite difference scheme in space and 2nd order factorization scheme in time (Kalitkin...
2014
Abstract: Tomography of a Velocity Modeland Location of Microseismic Events with P, Sv and Sh Waves; #90224 (2015)
Malgorzata Chmiel and Thomas Bardainne
Search and Discovery.com
...). Relative detection and location To detect and localize microseismic events we use a relative migration-based approach which involves three steps...
2015
Shallow Velocity Model Building Considerations for Prestack Depth Migration in Unconventionals
Mike Perz, Josef Heim, Candace Bruins
Unconventional Resources Technology Conference (URTEC)
... was observed in the single-layer delay-time case. Figure 1. Reference (“ideal”) velocity model used in finite-difference modeling. Shallow velocity model...
2019
The Influence of Formation Dip Angle on Buoyancy-Induced Gas Migration During Coal Seam Gas Production
Mohammad Sedaghat, Des Owen, Philip Hayes, James Underschultz, Suzanne Hurter, Andrew Garnett
Unconventional Resources Technology Conference (URTEC)
... the amount of the fluid exchange at the fracture-matrix interface (Gilman and Kazemi, 1983). A finite difference method (Mitchell and Griffiths, 1980...
2021
Petroleum System in the Khmer Trough, Cambodia
Akihiko Okui, Akinori Imayoshi, Kohsuke Tsuji
Indonesian Petroleum Association
... for Integration of Generation, Migration and Accumulation)" is a finite difference code developed by the Technology Research Center of Japan National Oil...
1997
Three-Dimensional Depth Imaging of Seismic Data to Help Delineate Petroleum Reservoirs in the Williston Basin
Alvin K. Benson
Williston Basin Symposium
.... 242-259; Jakubowicz and Levin, 1983, p. 34-56; Gibson et al., 1983, p. 1-33). For depth imaging using finite difference...
1995
Ground water hydrology and geochemistry in the Eutaw aquifer. Sumter County, Alabama: Implications for monitoring hazardous waste disposal facilities.
Rona J.Donahoe
Alabama Geological Society
... Alabama using a three-dimensional finite difference hydraulic model described by Trescott (1975). One ofthe primary purposes ofthis study...
1990
Computation of phase velocity direction using normalized wavefields
Kwangjin Yoon, Jungkyun Hyun
International Meeting for Applied Geoscience and Energy (IMAGE)
... the fly using wavefields at 3 continuous time steps ui-1, ui and ui+1 in the finite difference method. Figure 3 shows the computation of Poyn...
2024
Simultaneous waveform inversion of seismic-while-drilling data for P-wave velocity, density, and source parameters
Jinji Li, Scott Keating, Nasser Kazemi, Roman Shor, Kristopher A. Innanen
International Meeting for Applied Geoscience and Energy (IMAGE)
...-receiver pair, 𝑺 is the finite-difference modeling operator, and 𝒇 is the source term. Here 𝜙(𝒙) includes the summation over frequencies, but we do...
2022