Joint Turning-Ray and Reflection Tomography for Velocity Model Building in Foothill Areas

2018 ◽  
Author(s):  
Tian Jun ◽  
Peng Gengxin ◽  
Xianhuai Zhu ◽  
Junru Jiao ◽  
Grace (Yan) Yan
Keyword(s):  
Model Building ◽  
Velocity Model ◽  
Velocity Model Building ◽  
Reflection Tomography

Data-domain reflection tomography for initial velocity model building using challenging 3d seismic data

2019 ◽  
Author(s):  
Andrey Bakulin ◽  
Ilya Silvestrov ◽  
Maxim Dmitriev ◽  
Dmitry Neklyudov ◽  
Maxim Protasov ◽  
...  
Keyword(s):  
Seismic Data ◽  
Initial Velocity ◽  
Model Building ◽  
Velocity Model ◽  
3D Seismic ◽  
Velocity Model Building ◽  
Reflection Tomography ◽  
3D Seismic Data

scholarly journals Depth Velocity Model Building beyond Reflection Tomography, a case study, offshore Vietnam

2013 ◽  
Vol 2013 (1) ◽  
pp. 1-5 ◽  
Author(s):  
Yonghe Guo ◽  
Nabil El ◽  
Kady Adzha Nahar ◽  
Zabidi M Dom ◽  
Joe Zhou
Keyword(s):  
Model Building ◽  
Velocity Model ◽  
Velocity Model Building ◽  
Reflection Tomography

Diving‐wave refraction tomography and reflection tomography for velocity model building

2006 ◽  
Author(s):  
Mehmet C. Tanis ◽  
Hemang Shah ◽  
Peter A. Watson ◽  
Mark Harrison ◽  
Sherman Yang ◽  
...  
Keyword(s):  
Model Building ◽  
Velocity Model ◽  
Wave Refraction ◽  
Velocity Model Building ◽  
Refraction Tomography ◽  
Reflection Tomography

Integrated turning-ray and reflection tomography for velocity model building in foothill areas

2018 ◽  
Vol 6 (4) ◽  
pp. SM63-SM70 ◽  
Author(s):  
Tian Jun ◽  
Peng Gengxin ◽  
Junru Jiao ◽  
Grace (Yan) Yan ◽  
Xianhuai Zhu
Keyword(s):  
Model Building ◽  
Synthetic Data ◽  
Velocity Model ◽  
Surface Velocity ◽  
Seismic Exploration ◽  
Surface Model ◽  
Near Surface ◽  
Velocity Model Building ◽  
Tomographic Method ◽  
Reflection Tomography

A special challenge for land seismic exploration is estimating velocities, in part due to complex near-surface structures, and in some instances because of rugose topography over foothills. We have developed an integrated turning-ray and reflection-tomographic method to face this challenge. First, turning-ray tomography is performed to derive a near-surface velocity-depth model. Then, we combine the near-surface model with the initial-subsurface model. Taking the combined model as starting model, we go through a reflection tomographic process to build the model for imaging. During reflection tomography, the near-surface model and subsurface models are jointly updated. Our method has been successfully applied to a 2D complex synthetic data example and a 3D field data example. The results demonstrate that our method derives a very decent model even when there is no reflection information available in a few hundred meters underneath the surface. Joint tomography can lead to geologic plausible models and produce subsurface images with high fidelity.

Velocity model building challenges and solutions in a SE Asian basin: beyond reflection tomography

First Break ◽  
2016 ◽  
Vol 34 (10) ◽  
Author(s):  
Sijmen Gerritsen ◽  
Fabian Ernst ◽  
Chris Field ◽  
Yanti Abdullah ◽  
Dk Nurhayati PH Daud ◽  
...  
Keyword(s):  
Model Building ◽  
Velocity Model ◽  
Velocity Model Building ◽  
Reflection Tomography
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