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The AAPG/Datapages Combined Publications Database

Showing 63 Results. Searched 195,354 documents.

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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

Application of finite difference eikonal solver for traveltime computation in forward modeling and migration

Amir Mustaqim Majdi, Seyed Yaser Moussavi Alashloo, Nik Nur Anis Amalina Nik Mohd Hassan, Abdul Rahim Md Arshad, Abdul Halim Abdul Latiff

Geological Society of Malaysia (GSM)

... be computed by solving wave equation of the ray path or the eikonal wave equation. Accurate method of computing traveltimes will give a significant impact...

2021

Eikonal equation-based adjoint-state characteristic reflection traveltime tomography: Method and application in real dataset

Jianming Zhang, Liangguo Dong, Jianhua Wang, Yilin Wang, Chao Huang

International Meeting for Applied Geoscience and Energy (IMAGE)

...Eikonal equation-based adjoint-state characteristic reflection traveltime tomography: Method and application in real dataset Jianming Zhang, Liangguo...

2023

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

Data selection for velocity model estimation using a circular shot OBN survey

Felipe T. Costa, Sergio L. E. F. da Silva, Ammir A. Karsou, Felipe Capuzzo, Roger M. Moreira, Jorge Lopez, Marco Cetale

International Meeting for Applied Geoscience and Energy (IMAGE)

... construction and eikonal equation in automatic pre-stack data selection can improve the velocity model estimation in full waveform inversion (FWI...

2023

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: 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

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

New Rapid Solutions for Production Analysis From Multi Transverse Fracture Wells

Ismail S. Mohamed, Venkata Bala Krishnateja Chavali, Michael J. King

Unconventional Resources Technology Conference (URTEC)

... the solution of the Eikonal equation to relate the drainage volume of the well to a fracture half length (Bansal and King 2020), combined...

2023

Diving wave tomography: Velocity modelling using first arrival traveltime

Amatul Syafi Abdul Basit, Abdul Rahim Md Arshad, Arulini Permalu

Geological Society of Malaysia (GSM)

... field can be done either by ray tracing or by computing the numerical solutions of the eikonal equation. In ray tracing, raypath trajectory can...

2022

Rapid Simulation of Unconventional Reservoirs Using Multi-Domain Multi-Resolution Discretization Based on the Diffusive Time of Flight

Hongquan Chen, Kazuyuki Terada, Ao Li, Akhil Datta-Gupta

Unconventional Resources Technology Conference (URTEC)

... contours, efficient and robust DTOF calculation is a prerequisite for our applications. Historically, Eikonal equation, the governing equation of DTOF...

2022

The emergence and impact of scientific machine learning in geophysical exploration

Umair bin Waheed

International Meeting for Applied Geoscience and Energy (IMAGE)

... as a forward solver for the eikonal equation and the wave equation. For example, Waheed et al. (2020) and Smith et al. (2020) showed how PINNs could be used...

2023

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

Well Performance and Completion Efficiency Assessment in the Delaware Basin using the Diffusive Time of Flight

Jaeyoung Park, Yuxing Ben, Vivek Muralidharan

Unconventional Resources Technology Conference (URTEC)

... (after Iino et al. (2017)) The high-frequency asymptotic solution leads to the diffusivity equation and to the Eikonal equation (Vasco et al. 2000...

2021

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

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