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...

Abstract: Tomographic Reflected-Wave FWI Using Time Lag; #90254 (2016)

Geoff Clark, Yilong Qin

Search and Discovery.com

... image quality and building good initial model for conventional FWI. Ray-based refraction/reflection tomography methods are commonly used to obtain long...

A Dynamic Reflection Traveltime Calculation Method

Y. Wang, D.R. Schmitt

CSPG Special Publications

...A Dynamic Reflection Traveltime Calculation Method Y. Wang, D.R. Schmitt 1994 49 50...

Abstract: High-Resolution Seismic Velocity Structure of the Shallow Porcupine Basin From Traveltime Tomography and Waveform Inversion of Long-Streamer Data; #90310 (2017)

Manel Prada, François Lavoué, Brian O'Reilly, Sergei Lebedev, Yanhua Yuan, Clàudia Gras

Search and Discovery.com

...Abstract: High-Resolution Seismic Velocity Structure of the Shallow Porcupine Basin From Traveltime Tomography and Waveform Inversion of Long...

Application of Fullwaveform Tomography to VSP Walkaway Data

Eric Takam Takougang, Youcef Bouzidi

Petroleum Exploration Society of Australia (PESA)

... words: waveform tomography, traveltime tomography, VSP walkaway INTRODUCTION Fullwaveform tomography is a qualitative and quantitative imaging technique...

Abstracts: Improved Near-surface Velocity Models from 2D Waveform Tomography of Vibroseis First-arrival Data; #90173 (2015)

Brendan R. Smithyman and Ronald M. Clowes

Search and Discovery.com

...Abstracts: Improved Near-surface Velocity Models from 2D Waveform Tomography of Vibroseis First-arrival Data; #90173 (2015) Brendan R. Smithyman...

Refraction tomography at the Nova Ni-Cu mine

Ian James, Graeme Hird, Andrew Fitzpatrick

Petroleum Exploration Society of Australia (PESA)

..., A., Tryggvason, A., Wijns, C., Lindqvist, T., Skyttä, P., Koivisto, E., & Montonen, M., 2016, 3D traveltime tomography and reflection imaging for mine planning...

First-Arrival Traveltime Inversion in the CMP Domain: Method and Application

Search and Discovery.com

... reflection profiles: Geophysical Prospecting, 38, 247-266. Stefani, J.P., 1995, Turning-ray tomography: Geophysics, 60, 1917-1929. Zhu, T., Cheadle...

Diving wave tomography: Velocity modelling using first arrival traveltime

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

Geological Society of Malaysia (GSM)

...Diving wave tomography: Velocity modelling using first arrival traveltime Amatul Syafi Abdul Basit, Abdul Rahim Md Arshad, Arulini Permalu Bulletin...

Abstracts: Near-surface Velocity Model Building and Statics in Permafrost Regions; #90173 (2015)

Tianfei Zhu, Yan Yan, and Jon Downton

Search and Discovery.com

... be determined by combining first-arrival tomography with reflection tomography. Introduction Processing and imaging of reflection data from permafrost...

Abstract: Application of a Tomographic Velocity Model to the Prestack Depth Migration of a Buried Valley; #90172 (2014)

Oluwafemi Ogunsuyi, Douglas R. Schmitt

Search and Discovery.com

... of a tomographic velocity model, the reprocessing of the reflection seismic and its corresponding depth migration using velocities derived from the traveltime...

Determination of Velocity Model by Using NIP-Wave Tomographic Inversion: Application to Synthetic and Real Data

A. Hendriyana, R. Sule, Y. Akbar, L.A. Poerwaka, T.A. Sanny, Sardjito, Waluyo, Adriansyah

Indonesian Petroleum Association

...; Deregowski, 1990; Liu, 1997) , traveltime inversion/reflection tomography (Bishop et al., 1985; Farra and Madariaga, 1988) and combination among both of them...

Application of Advanced Depth Imaging Technology in Shallow Water Offshore Indonesia

Michael Gidding, Suyang Chen, Steven Wiseman, Moch Asrori, Richard Bolton

Indonesian Petroleum Association

... accumulation. A significant improvement in imaging of the critical zone of interest was achieved through a process of iterative reflection tomography...

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)

... difference method has better resolution than ray tracing method especially on deeper part of subsurface model. Keywords: Reflection, traveltime, forward...

Frequency-Domain Waveform Tomography in the Foothills: Velocity Model Estimation with Synthetic Long-Offset Data

Search and Discovery.com

.... Depth imaging is often necessary, and an accurate estimation of the macro-velocity model is essential. Waveform Tomography (i.e., traveltime...

Key Technologies for Processing of Seismic Data in Gas Cloud Area

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Abstract: To TTI or not to TTI? Semi-Automated 3D Tomographic Velocity Analysis in the Canadian Foothills: A Case History; #90211 (2015)

Sylvestre Charles, David Mitchell, Rob Holt, Jiwu Lin, and John Mathewson

Search and Discovery.com

... but this may introduce an error on the original near surface velocity layer. Furthermore, in a global reflection tomography scheme, the near surface...

Key Technologies for Processing of Seismic Data in Gas Cloud Area, Bohai Bay Basin, #42093 (2017).

Xia Tongxing, Ming Jun, Liu Lei, Zhou Xuefeng, Liu Hongxing, Liu Xuetong

Search and Discovery.com

... attenuated traveltime tomography. Then, model-driven Q compensation is realized directly during depth migration. Conventional reflection tomography...

Joint inversion of first-arrivals with full waveform inversion: improving the near-surface model for depth imaging the Marcellus shale of Bradford County, PA

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High-Resolution Anisotropic Earth Model Building on Conventional Seismic Data Using Full-Waveform Inversion: an Offshore Australia Case Study

Bee Jik Lim, Denes Vigh, Stephen Alwon, Saeeda Hydal, Martin Bayly, Chris Manuel, Dimitri Chagalov, Gary Hampson, Dimitri Bevc

Indonesian Petroleum Association

..., the initial starting model was derived from a smooth version of a reflection traveltime tomography velocity field derived from a depth migration workflow...

Gas hydrates characterization in the southern Hikurangi margin using full waveform inversion

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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

... process carried out simultaneously between the gravity, magnetotelluric, and Traveltime Tomography methods so that all methods are correlated with each...

High-End Model Building Techniques for Revealing a Pre-Carbonate Reservoir Offshore East Natuna Basin, Indonesia

Jun Wang, Yonghe Guo, Yitao Chen, Muhammad Nauvall Juliansyah, Nick Crabtree

Indonesian Petroleum Association

... difficulties for conventional raybased reflection travel-time tomography. Figure 3 - Initial velocity and refraction energy penetration analysis (Depth...

An Interpreter's Guide to Improvements in Depth Imaging through Model-Based Velocity Estimation and Refinement

Andy Furniss

Petroleum Exploration Society of Australia (PESA)

... how the error in traveltime at reflection point A is the result of an accumulation of errors, X.1ti, within each layer where the ray has travelled...

An Interpreter's Guide to Improvements in Depth Imaging Through Model-Based Velocity Estimation and Refinement

Andy Furniss

Indonesian Petroleum Association

... is determined and used as input to tomography. Figure 12. Schematic showing how the error in traveltime at reflection point A is the result of an accumulation...