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

... with a 7000 meter aperture. The travel times were obtained by solving the eikonal equation using finite differences. The geophysical modelling supports...

Multi-Resolution Simulation for Efficient Pressure & Stress Calculation in Large-Scale CO2 Storage Using Pseudosteady State Pressure as Spatial Coordinate

Kazuyuki Terada, Akhil Datta-Gupta, Michael J. King

Carbon Capture, Utilization and Storage (CCUS)

... for the spatial discretization. The DTOF is an arrival time of pressure front propagating from a well that is governed by the Eikonal equation (Eq. 1...

Two-dimensional seismic refraction tomography of a buried bedrock valley at Hallsands beach, Devon, United Kingdom

Eric B. Avalos, David H. Malone, Eric W. Peterson, William P. Anderson, and Roland W. Gehrels

Environmental Geosciences (DEG)

.... T., and A. Quintus-Bosz, 1993, Wavepath eikonal traveltime inversion: Theory: Geophysics, v. 58, p. 1314–1323, doi:10.1190/1.1443514. Tsai, C. C., R. D...

Rapid Refracturing Candidate Selection in Shale Reservoirs Using Drainage Volume and Instantaneous Recovery Ratio

Changdong Yang, Xu Xue, Jixiang Huang, Akhil Datta-Gupta, Michael J. King

Unconventional Resources Technology Conference (URTEC)

... the asymptotic (high frequency) limit of the diffusivity equation for the impulse pressure solution and requires solution of the Eikonal equation...

The application of a new machine-learning paradigm based on pretraining and fine-tuning, StorSeismic, on field seismic data

Randy Harsuko, Tariq Alkhalifah

International Meeting for Applied Geoscience and Energy (IMAGE)

... as the input. To prepare the labels, we calculate numerically the first arrivals using an eikonal solver (https://github.com/scikit-fmm/scikitfmm...

Using Reflected Phases to Improve Depth Resolution of Microseismic Source Locations from Single-Well Observations

James Rutledge, Nobukazu Soma

Unconventional Resources Technology Conference (URTEC)

... TiCAL by ray-tracing through the 7-layer velocity model. The ray-tracing calculation was done by a 2nd-order solution of the eikonal equation based...

Kronecker neural networks for the win: Overcoming spectral bias for PINN-based wavefield computation

Umair bin Waheed

International Meeting for Applied Geoscience and Energy (IMAGE)

... inversion (FWI). One of the popular approaches is to solve for the wavefields in the frequency domain by using the Helmholtz equation. However, Helmholtz...

Reservoir Description by Interferometric Imaging of VSP Data in Transition Zones

Thomas Radford, Martin Karrenbach, Ferry Yustiana, Willi Brianno, Dhea Wachju

Indonesian Petroleum Association

... was applied to the VSP data (similar to He et al., 2007). , , , This equation describes the imaging operation M(p) in the frequency...

Simultaneous Joint Inversion of Seismic, Magnetotelluric and Gravity in a Sub-Volcanic Reservoir

Muhammad Irsyad Hibatullah, Maulana hutama Rahma Putra, Firman Syaifuddin Akbar, Dwa Desa Warnana, Fahrenzy Yona Aisha

Indonesian Petroleum Association

... on the Faust equation (1) (Faust, 1951) and Density parameters using the Gardner equation (2) (Gardner, Gardner and Gregory, 1974...

Quantification of Connectivity in Images

Yaokun Wu, Siddharth Misra

Unconventional Resources Technology Conference (URTEC)

... to boundary value problems of the Eikonal equation given by (Sethian 1996): 𝐹(𝑥)|∇𝑇(𝑥)| = 1 URTeC 2937 6 where 𝐹 is the travel speed as a function...

Modeling Unconventional Reservoirs Using a Graph Network Model

Zhenyu Guo, Sathish Sankaran

Unconventional Resources Technology Conference (URTEC)

..., this approach was extended to allow multiwell interference (Iino et al., 2020). By solving the Eikonal equations, FMM produces diffusive time of time...

Reduced Physics-Based Simulation for Unconventional Production Forecasting … A 1D Approach

Stein Krogstad, Miguel A. Jakymec, Amir Kianinejad, Dryonis Pertuso, Sebastien Matringe, Andreas Brostrom, Jakob Torben, Olav Møyner, Knut-Andreas Lie

Unconventional Resources Technology Conference (URTEC)

... by solving the Eikonal equation for the DTOF on the full 3D model using a fast-marching algorithm. The DTOF solution is then used as a coordinate...

Monitoring Sea-floor Instability Caused by the Presence of Gas Hydrate Using Ocean Acoustical and Geophysical Techniques in the Northern Gulf of Mexico

Erika Geresi, Ross Chapman, Tom McGee, Bob Woolsey

AAPG Special Volumes

... field is handled theoretically. Typically, the traveltime is known analytically by solving the eikonal (ray) equation directly or by ray tracing...

Physics-Informed Machine Learning Approach for Closed-Loop Reservoir Management Using RGNet

Zhenyu Guo, Sathish Sankaran

Unconventional Resources Technology Conference (URTEC)

...., 2020). Traditionally, DTOF can be obtained by solving the Eikonal equation for a 3D model using fast-marching techniques. However, RGNet does...

High-precision seismic imaging for complex deep structures in the hydrocarbon exploration using a coherent-stacking-based least-squares migration

Jidong Yang, Jianping Huang, Tengfei Lin, Zhenchun Li, and Liang Chen

AAPG Bulletin

... the traveltime by tracing rays (Julian and Gubbins, 1977; Keho and Beydoun, 1988) or solving the eikonal equation using the finite-difference algorithm...

Simultaneous Inversion for Microseismic Event Location and Velocity Model in Vaca Muerta Formation

Zhishuai Zhang, Jing Du, Fuchun Gao

Unconventional Resources Technology Conference (URTEC)

... predicted using these predetermined velocity models. The forward modeling was conducted by solving the Eikonal equation for the first arrivals, which...

Predicting Waterflood Behavior by Simulating Earth Models with No or Limited Dynamic Data: From Model Ranking to Simulating a Billion-Cell Model

Joseph Hovadik, David Larue

AAPG Special Volumes

... (1996). The method is used to solve the eikonal equation that describes the traveltime of a propagating front:where t(x, y, z) is the traveltime, and v...

Assessing and processing three-dimensional photogrammetry, sedimentology, and geophysical data to build high-fidelity reservoir models based on carbonate outcrop analogues

Ahmad Ramdani, Pankaj Khanna, Gaurav Siddharth Gairola, Sherif Hanafy, and Volker Vahrenkamp

AAPG Bulletin

... traveltime from the velocity model using finite difference approximation of the eikonal equation. The forward-calculated first arrival...

AAPG/SEG International Conference and Exhibition; - Abstracts, #90255 (2017).

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