SEG | DGS Workshop: Challenges & New Advances in Velocity Model Building

9-11 March 2021 I Al Khobar, Saudi Arabia

Call for Abstracts deadline extended to 2 November 2020!


9-11 March 2021
Al Khobar, Saudi Arabia

Due to the ongoing global health concerns of the COVID-19 virus, the ‘SEG | DGS Workshop: Challenges & New Advances in Velocity Model Building’ is rescheduled to 9 –11 March 2021. We appreciate your continued support and understanding. Please do not hesitate to email Anneke de Klerk for any further questions.

Velocity model building is the most important and critical element in seismic data imaging. The demands of exploring more complex new frontiers in particular will not be fulfilled without accurate velocity models. Understanding the fundamentals, and then challenging the approximations of seismic velocity estimations, limitations and pitfalls in practical applications, are the main keys of building the most accurate integrated velocity model. This approach, which exploits the relationship between the refraction, reflection, surface waves and non-seismic data, considers the wave propagation which is based on strong simplified assumptions. Accurate velocities are the main challenge for improving seismic data and depth prediction. For example, near-surface irregularities require accurate velocity models for proper imaging of the deep subsurface. Moreover, high-resolution velocities are also desirable for wave-equation based migration algorithms required for subsalt imaging.

The workshop is designed to provide insights for geoscientists to better understand the principles and limitations of both current and emerging technologies involved in velocity model building. As a result, participants should ideally understand how contemporary velocity estimation methods work, and what approximations are involved in obtaining computationally tractable solutions.

Organizing Committee

  • Committee Chair: Abdulaziz Saad, Saudi Aramco
  • Committee Co-Chairs:
    • Fons ten Kroode, Shell
    • Moosa Jahdhami, Petroleum Development Oman

Committee Members

  • Abdulatif Al Shuhail, KFUPM
  • Abdulaziz Mansour, DGS
  • Denes Vigh, Schlumberger
  • Eric Verschuur, Delft
  • Gerard Schuster, KAUST
  • John Etgen, BP
  • Jose Edgardo Vargas, ADNOC
  • Kamel Belaid, BGP
  • Khaled Delaijan, Saudi Aramco
  • Patrice Guillaume, CGG
  • Raya Al Kalbani, PDO
  • Tristram Burley, ION


Anneke de Klerk
SEG Middle East
Telephone: +97143712710
Email: [email protected]


This workshop will be of significant interest to:

  • Geoscientists
  • Engineers
  • Research institutes & academia

Workshop Format

The format of the workshop will feature presentations by invited key experts who will share their experiences. The workshop will provide a unique opportunity for open and extended discussions among the participants.

Six sessions (3 days). We will aim for one keynote speaker per session with a closing session at the end of the workshop to serve as the outlook going forward. The oral presentations are comprised of 20-minute talks followed by 5 minutes of Q&A. After each session, a 30-minute discussion session is planned. The objective of this session is to allow participants to discuss in detail and learn from each other what has worked for them and debate the issues and challenges facing them during their daily workflows. Session chairs will also serve as discussion leaders during the 30 minutes.

Poster Presentations are welcome to give ample time to the delegates to discuss the poster topic with the author(s). Posters will be in displayed in the workshop room available for viewing during coffee breaks and afternoon free time following each session.

Useful Information on Transport/Transfers

Please find below suggested options:

  • You can download the Uber or Careem app on your phone. Both options are affordable and easy to use within Al Khobar.
  • Alternatively, you can book a taxi from your hotel directly from the concierge.

*all transportation cost to be handled by the attendees

Please note, from the King Fahd International Airport to Al Khobar, the local taxi from airport is approximately - SAR 115 (US$31)

Visa Information

Saudi Arabia has introduced an easy-to-use online portal for tourist visa application. This portal is now available for several countries who can apply for e-service. Visit the website to see if your country is on the list.

Can't find your country on the list? We will provide more information as it becomes available.

Call for Abstracts

Submission deadline: 2 November 2020

Submit your abstract to [email protected]

This workshop will aim to address the following topics:

  • Role of Acquisition
  • Near surface 
  • Non-Seismic methods
  • Borehole seismic
  • Wave Equation Tomography
  • Waveform inversion
  • Anisotropic velocities
  • Time and depth imaging
  • Calibration, Depth Conversion and Validation
  • Uncertainty and validation
  • Big Data and Machine Learning
  • Case studies

Abstract Format

Max two page abstract + one figure, single column

Abstracts should include sufficient details for the committee to judge the quality of the submitted work. Abstracts should be a minimum of one page, text plus one figure, with a maximum of two pages. Abstracts should be on 8.5 x 11 inch paper size, text in Roman font, and include both text and figures.

Title should be one or two lines, at the top of the page, in bold font, and size 12 point. Authors should be listed in Roman italic font, size 10 point, and located just below the title. All text must stay 1-inch clear of the margins of the page. Submissions should be in Adobe Acrobat PDF format.

Sponsorship Opportunities

To maximize exposure and visibility for our partners, we offer an array of unique sponsorship opportunities designed to suit a range of budgets with specific target audiences for optimum return on investment. For a list of sponsorship opportunities and an application form for sponsorship, contact us at [email protected].

Submit abstract

Important Dates

Call for Abstracts closes:
2 November 2020

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