Accelerated Kirchhoff depth migration on CPU-GPU heterogeneous computing systems

Yujin Liu, Hongwei Liu, Yi He, Fuhao Qin, Yue Du

International Meeting for Applied Geoscience and Energy (IMAGE)

... tracing or by Eikonal equation solver. Figure 1 illustrates how the downgoing and the upgoing rays are traced through an interval velocity function 7(3...

Seismic dataset-specific machine learning framework based on pretraining and fine-tuning

Tariq Alkhalifah, Randy Harsuko

International Meeting for Applied Geoscience and Energy (IMAGE)

... the synthetic, we numerically solve the eikonal equation to obtain the first arrivals, and assign the time sample index for the first arrival at each offset...

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...

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...

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...

Seismic fault proximity to production

Jesse Lomask, Toby Burrough, Allison Gilmore, Michael Pyrcz

International Meeting for Applied Geoscience and Energy (IMAGE)

...) as initial zero distance nodes. We also used a fast marching Eikonal solver (Adalsteinsson & Sethian, 1999). The resulting volume contains the distances along...

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...

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...

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...

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...

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...

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

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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...

Sparse ocean-bottom node seismic interferometry and inversion: A Gulf of Mexico study

Ivan Lim Chen Ning, Justin Tan, Ranjan Dash

International Meeting for Applied Geoscience and Energy (IMAGE)

...://doi.org/10.1190/ geo2014-0558.1. de Ridder, S., and J. Dellinger, 2011, Ambient seismic noise eikonal tomography for near-surface imaging at Valhall...

PSDM Enhances Reef Interpretation in Jatiluhur Block, West Java

Jopie I. Adhidjaja, Andrew J. Davidoff, Ika Ratna Novianti

Indonesian Petroleum Association

.... It has been found to produce higher quality depth images than the conventional Eikonal algorithm. Options for ray tracing selection include maximum...

Time-Lapse Imaging of a Hydraulic Stimulation Using 4-D Vertical Seismic Profiles and Fiber Optics in the Midland Basin

Robert Meek, Kevin Woller, Mark George, Robert Hull, Hector Bello, Jed Wagner

Unconventional Resources Technology Conference (URTEC)

... migration. The depth migration used an isotropic eikonal traveltime solution calculated from a single velocity function derived from the zero-offset direct...

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...

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...

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...