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The AAPG/Datapages Combined Publications Database
Showing 47 Results. Searched 188,450 documents.
Abstract: Estimation of the Quality Factor with Tomography Using the Complex Eikonal Equation; #90255 (2017)
Tatiana Espinosa, Carlos Piedrahita Escobar
Search and Discovery.com
...Abstract: Estimation of the Quality Factor with Tomography Using the Complex Eikonal Equation; #90255 (2017) Tatiana Espinosa, Carlos Piedrahita...
2017
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
... to demonstrate the effect of this algorithm. A numerical error analysis with a simple example The 2-D Eikonal equation, governing the traveltimes from...
2014
Abstract: Regular Grids Travel Time Calculation A Practical Huygens Wavefront Expansion Approach; #90187 (2014)
Zhengsheng Yao, Mike Galbraith, and Randy Kolesar
Search and Discovery.com
... difference approximations to the equations that are equivalent to the Eikonal equation with a fixed time interval. Mapping traveltime from wavefront...
2014
Phase-Ray Maslov Summation: A Complete Finite-Frequency Ray Method
Tianfei Zhu
Search and Discovery.com
... unable to account for the inhomogeneity scattering effects. Based on a phase eikonal equation, on the other hand, the phase-ray method is capable...
Unknown
Phase-Ray Maslov Summation: A Complete Finite-Frequency Ray Method
Tianfei Zhu
Search and Discovery.com
... unable to account for the inhomogeneity scattering effects. Based on a phase eikonal equation, on the other hand, the phase-ray method is capable...
Unknown
Flow Simulation of Complex Fracture Systems With Unstructured Grids Using the Fast Marching Method
Changdong Yang, Xu Xue, Michael J. King, Akhil Datta-Gupta
Unconventional Resources Technology Conference (URTEC)
... and with larger cells far from the fractures. Next, the Eikonal equation, which governs the transient pressure propagation process, is solved on the basis...
2017
Application of VTI PSDM for imaging carbonate structures
Seyed Yaser Moussavi Alashloo, Deva Ghosh, Yasir Bashir, Amir Babasafari
Geological Society of Malaysia (GSM)
... transverse isotropy (VTI) wave equation. A fast marching finite difference approach is used as our eikonal solver since it is fast and stable...
2018
Abstract: Scanning Anisotropy Parameters in Inhomogeneous Media, by Tariq A. Alkhalifah; #90105 (2010)
Search and Discovery.com
2010
Abstract: Computing Gridded Traveltimes from the Random Locations of Three Known Points; #90211 (2015)
John Bancroft and Xiang Du
Search and Discovery.com
... the traveltime as an expanding wavefront using an Eikonal equation approach. They may also be computed from raypaths that spr ead across the grid...
2015
Abstract: Influence of Error in Estimating Anisotropic Parameters on VTI Depth Imaging; #90255 (2017)
S. Y. Moussavi Alashloo, D. P. Ghosh, W. Y. Wan Ismail
Search and Discovery.com
... such as sparse data acquisition, erroneous data with low signal to noise ratio, etc. In this study, a fast marching eikonal solver is employed...
2017
Abstracts: General Anisotropic Travel Times A Purpose Built Solution; #90173 (2015)
R. Phillip Bording
Search and Discovery.com
... to travel times. Introduction The eikonal equation is a non-linear partial differential equation, which has many applications in geophysical modeling...
2015
Abstract: Determining Induced Microseismic Event Position and Origin Time, by Abdullah AlRamadhan; #90105 (2010)
Search and Discovery.com
2010
Obtaining Low Frequencies for Full Waveform Inversion by Using Augmented Physics
Eldad Haber, Eran Treister, Elliot Holtham
Petroleum Exploration Society of Australia (PESA)
... equation we obtain the Eikonal equation for high frequencies This equation models the first arrivals of the waves. Since the travel time...
2016
Fast Marching Method Based Rapid Simulation Accounting for Gravity
Tsubasa Onishi, Atsushi Iino, Hye Young Jung, Akhil Datta-Gupta
Unconventional Resources Technology Conference (URTEC)
... in the fracture planes. The DTOF is first obtained by solving the Eikonal equation using the FMM assuming that gravity segregation is negligible...
2019
Rapid Simulation Accounting For Well Interference in Unconventional Reservoirs Using Fast Marching Method
Atsushi Iino, Hye Young Jung, Tsubasa Onishi, Akhil Datta-Gupta
Unconventional Resources Technology Conference (URTEC)
... for heterogeneous reservoirs and hydraulically fractured wells. The DTOF can be efficiently computed by solving the Eikonal equation using the Fast Marching...
2020
Abstract: Inference of 2D and 3D Locally Varying Anisotropy Fields; #90187 (2014)
Maksuda Lillah and Jeff Boisvert
Search and Discovery.com
... of initial positio is set 0; T (0 ) 0 The FMM, although highly consistent and accurate in solving the Eikonal equation (3), suffer from numerical...
2014
Rapid Field-Scale Well Spacing Optimization in Tight and Shale Oil Reservoirs Using Fast Marching Method
Atsushi Iino, Tsubasa Onishi, Feyi Olalotiti-Lawal, Akhil Datta-Gupta
Unconventional Resources Technology Conference (URTEC)
...) computed as solution to the Eikonal equation using the FMM. Multiphase production rates are then computed for each well by utilizing the DTOF as spatial...
2018
Amplitude and Bandwidth Recovery Beneath Gas Zones Using Kirchhoff Prestack Depth Q-Migration
Jonathan Liu, Peter Traynin, J. M. Reilly
Indonesian Petroleum Association
... traveltime methods (ray tracing or eikonal solver) in an acoustic medium. The second term in equation (2) permits migration to compensate for amplitude loss...
2007
Abstract: Near Surface Anomalies and Solutions; #90211 (2015)
Todd Mojesky, David LeMeur, and Ali Karagul
Search and Discovery.com
... (of the first arrivals in this case) with the generated model. A finite-difference Eikonal solver allows fast and accurate estimations of first...
2015
Rapid Compositional Simulation and History Matching of Shale Oil Reservoirs Using the Fast Marching Method
Atsushi Iino, Aditya Vyas, Jixiang Huang, Akhil Datta-Gupta, Yusuke Fujita, Sathish Sankaran
Unconventional Resources Technology Conference (URTEC)
... frequency asymptotic solution of the diffusivity equation in heterogeneous and fractured reservoirs. The high frequency solution leads to the Eikonal...
2017
A Novel Approach for Production Transient Analysis of Shale Gas/Oil Reservoirs
Changdong Yang, Vishal Sharma, Akhil Datta-Gupta, Michael J. King
Unconventional Resources Technology Conference (URTEC)
... of the diffusivity equation for the impulse pressure solution. The formulation requires the solution of the Eikonal equation for the Diffusive Time of Flight...
2015
Rapid Modeling of Injection and Production Phases of Hydraulically Fractured Shale Wells Using the Fast Marching Method
Jaeyoung Park, Atsushi Iino, Akhil Datta-Gupta, Jackson Bi, Sathish Sankaran
Unconventional Resources Technology Conference (URTEC)
... on a high frequency asymptotic solution which transforms the diffusivity equation to the Eikonal equation (Vasco, Keers, and Karasaki 2000, Vasco...
2019
Traveltime Computations for Locating the Source of Micro Seismic Events and for Forming Gridded Traveltime Maps
John C. Bancroft
Search and Discovery.com
... solution to the eikonal equation. This method assumes plane waves and produces significant errors when the radius of curvature of the wavefront...
Unknown
Traveltime Computations for Locating the Source of Micro Seismic Events and for Forming Gridded Traveltime Maps
John C. Bancroft
Search and Discovery.com
... solution to the eikonal equation. This method assumes plane waves and produces significant errors when the radius of curvature of the wavefront...
Unknown
Abstract: Application of Acoustic Waveform Tomography to Marine Seismic Reflection Data Contaminated with Strong Guided Waves; #90187 (2014)
Rajesh Vayavur and Andrew. J. Calvert
Search and Discovery.com
... first arrival tomography code of Aldridge and Oldenburg (1993), which is based on a finite difference solution of the eikonal equation to derive...
2014