Full Waveform Inversion: Land and Shallow Water Challenges

About

10–12 October 2023
Abu Dhabi, UAE

Workshop Description

While FWI has recently made giant strides in deep water subsurface imaging, the technology is lagging significantly for land and shallow water applications. Noise — whether ambient or source related — is clearly an issue, especially for the low frequencies that are so critical for successful implementation. Perhaps more problematic is the need to construct an accurate high-resolution model of the near surface. Depending on the terrain, the near surface can have large velocity contrasts, high anisotropy, high attenuation, significant heterogeneities leading to scattering, and strong multiple generators. A proper model of the near surface might need to be possibly viscoelastic and require a fine computational grid to handle the ultra-low elastic velocities we encounter in the near-surface, which may be a challenge for today’s computer capacity. To make matters worse, the near surface is often ill-sampled by cost effective 3D acquisition designs.

Despite all these hurdles we are starting to see some beneficial FWI applications to land and shallow water surveys. How important are data conditioning, wavelet estimation and the choice of the initial model? Do we have to move to elastic FWI? Can ground roll, mud roll and multiples help rather than hinder the process? Do we need to design our surveys differently? Can we use other complementary data? What do we do with all the scattering noise? What is the role of Machine Learning? Is there room for improvement in acquisition? The goal of this workshop is to review the state-of-the art and investigate the next key steps to address some of these questions.

The workshop focuses on the current challenges of FWI on land and shallow water seismic data and the technological advances and improved workflows that aim to resolve subsurface complexities (both near-surface and deep), and complex structures and their collective impact on FWI. In addition, the workshop will address novel acquisition and processing methods, and the application of machine learning in FWI. Case studies in both land and shallow water regimes will be presented and innovative borehole applications of FWI will also be introduced.

Workshop attendees will have the opportunity to appraise the latest advancements in the application of FWI on land and shallow water surveys and industry progress on the path to elastic FWI. All those interested in applying FWI to seismic data should attend. Managers will recognize the important role of FWI in the future of seismic imaging. Processing geophysicists will gain a broader understanding of both the challenges hindering successful deployment of FWI on land and shallow water data, as well as the latest approaches to resolving these challenges. Similarly, borehole geophysicists will gain insights into the role of FWI in advancing borehole geophysics.

We anticipate broad engagement from both academia and industry, from the Middle East and further afield. Our underlying objective is to facilitate a platform for advancing FWI in land and shallow water surveys within a technical community that shares the common goal of resolving the aforementioned challenges and progressing toward the ultimate goal of elastic FWI.

Technical Committee

Committee Chair: Guillaume Cambois, Abu Dhabi National Oil Company (ADNOC)
Committee Co-Chair: Tariq Al Khalifah, King Abdullah University of Science and Technology (KAUST)

Ahmed Al-Obeidi, Petroleum Development Oman (PDO)
Ahmed Aziz, CGG
Alok Soni, Shell
Anna Glushchenko, SLB
Bin Wang, TGS
Christopher Stork, Land Seismic Noise Specialists
Daniela Donno, CGG
Denes Vigh, SLB
Gary Hampson, DUG
Khalid Al-Adwani, Kuwait Oil Company (KOC)
Mohamed Sedeek Sheneshen, SLB
Moosa Al Jahdhami, Petroleum Development Oman (PDO)
Nizar Chemingui, PGS
Olivier Hermant, CGG
Saud Al Saadi, Saudi Aramco
Sherif Hanafy, King Fahd University of Petroleum and Minerals (KFUPM)
Shotaro Nakayama, INPEX
Wathik Alaaraji, TGS
Xianhuai Zhu, Forland Geophysics

Contact

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

Attend

Registration Fees

Registration fee includes: Coffee breaks (during the conference), Lunches (Tuesday-Thursday)

Early Bird Registration Fee (must be registered and paid before 6 September 2023)
US$1400 (member) | US$1640 (non-member)

Full Registration Fee (begins from 7 September 2023 onwards)
US$1610 (member) | US$1850 (non-member)

Academia Registration Fee
US$650

Student Registration Fee (member)
US$250

Workshop & Seminar Registration Fee
US$1,860 (Member) | US$2100 (Non-member)

Seminar Only Registration Fee
US$300

*Rates are excluding 5% UAE VAT

Cancelation Policy

Written notice received by 6 September 2023 entitles registrants to a full refund of the registration fee minus US$50 for processing. No refunds will be issued after 6 September 2023. Substitutions are permissible with written approval by the event organizers. Notify Anneke de Klerk ([email protected]) immediately to request a substitution.

Who should attend?

The workshop will be of interest to academia, industry professionals, geophysicists, and individuals interested in seismic, processing, acquisition, AI and ML specialists, and geotechnical engineers.

Workshop Overview and Format

The format of the workshop will feature presentations by invited key experts in their fields who will share their experiences. The workshop will serve as a unique opportunity to have open and extended discussions among the participants.

Workshop Venue

Sofitel, Abu Dhabi Corniche

Each Sofitel draws inspiration from local culture and tradition while celebrating innovation and the French art de vivre to offer a one-of-a-kind, luxurious hotel experience. At the Sofitel, Abu Dhabi, stroll along the Corniche seafront as the sun goes down over the beautiful Arabian Gulf, or gaze out at the city skyline from our jazz bar. Dine on fine French, Mediterranean and Middle Eastern cuisine in our restaurants. Housing/Reservations details will be available shortly.

Housing/Reservations

Rooms have been negotiated for the following rate at Sofitel, Abu Dhabi Corniche, UAE. Attendees are requested to contact the hotel directly to reserve your accommodation. Kindly note the rooms are subject to availability and no rooms have been blocked.

Superior Room – Single Occupancy: AED 425 ++ (includes breakfast, and Wi-Fi) (approx. US$ 116)
Superior Room – Double Occupancy: AED 475 ++ (includes breakfast, and Wi-Fi) (approx. US$ 130)

*Subject to 10% service charge, 6% tourism fee, 4% municipality fee and 5% VAT and AED 15 Municipality Room fee/room/night.

For Reservations, please complete the hotel booking form under important documents and email it to [email protected] or [email protected]. To view more details on the hotel, click here.

Technical Program

Keynote Speakers

Öz Yilmaz, GeoTomo LLC
Alok Soni, Shell
Daniele Colombo, Saudi Aramco
Denes Vigh, SLB
Nizar Chemingui, PGS
Matthieu Retailleau, CGG
Rodney Johnston, BP

Technical Sessions

Land case studies
Full wavefield utilization
Borehole applications
Novel methods
Novel methods: Machine learning
Shallow water case studies
Near surface complexities
Deep subsurface complexities
Elastic inversion

Pre-workshop Seminar

A Decade of Advancement in FWI

Date: 9 October 2023
Duration: 8 hours
Instructor: Denes Vigh, SLB
Intended Audience: Entry to Advance
Location: Abu Dhabi, UAE

Seminar Overview

The seminar targets FWI developments from its early developments to its present-day applications. It will also address the evaluation of objective functions from Least Squared (LS) to the recent Enhanced Template Matching (ETM), Time Lag (TL), Optimal Transport (OT), and dynamic matching.

It will shed light on acquisition and the frequency content of the data and its impact on the FWI workflow. Land, shallow water, and deep water will to be covered with real field data examples. The other intriguing feature is the 4D implementation of FWI. A summary of this will be presented during the course. Last but not least, improved physics will be discussed in terms of elastic FWI especially when it is a must to employ elastic propagation to ensure a successful FWI project.

Seminar Outline

Introduction to FWI
Land FWI basics and preconditioning
High-Res Land FWI
Shallow water workflows
MP FWI
Diving wave penetration or and illumination
Gradient optimization and line search
4D FWI approaches
Deep water with different acquisitions
Elastic experience

Registration Rates

Workshop & Seminar Registration Fee
US$1,860 (Member) | US$2100 (Non-member)

Seminar-only Registration Fee
US$300

*Rates are excluding 5% UAE VAT

Speaker Biography

Denes Vigh has an MS in Geophysics. He was group leader for Hungarian Exploration Co. (1983-1987), project manager for CGG (1987-1991), supervisor and remote center manager for Schlumberger Geco-Prakla (1991-997), VP of Geophysical Services at Paradigm Geophysical (1997-2001), and VP Operations at STAAG Imaging L.P. (2001-2008). After the WesternGeco acquisition of STAAG Imaging L.P., Denes Vigh joined WesternGeco in 2008 and first managing and later advising the FWI/RTM group within SLB.

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 benefits, please refer to the form located under ‘Important Documents’ or contact us at [email protected].