First EAGE/SBGf Workshop on Marine Seismic Acquisition
21-22 May 2025 | Rio de Janeiro, Brazil
Meet our Keynote Speakers
Madjid Berraki
Leading Advisor Geophysical Acquisition
Equinor
PhD in Mechanical Engineering from Institut Francais du Petrole in 2004. Hold various positions in CGG from R&D Specialist in Marine Seismic Sources to Project Leader in Marine Seismic Acquisition and Processing. Joined Equinor in 2014 as a Principal Geophysicist working mainly on the Grane/Snorre PRM fields and following up various other processing projects. Currently Leading Advisor in Geophysical Acquisition in Equinor.
Julien Large
Product Champion
Sercel
Julien Large is the Product Champion for Sercel’s Marine Seismic Source business line, responsible for overseeing the 'Marine Source' segment since 2017. In this role, he is involved in defining product development strategies, guiding technology, managing expert teams, and ensuring the financial performance of product lines. Julien also played a key role in the strategy and development of the Bluepulse and TPS product lines and participated in the LISS acquisition. Previously, he worked for over 10 years as a Project Manager in the Oil & Gas, Nuclear Power, and Cryogenics sectors. He holds an Engineering degree from CNAM, Paris and completed the Mastering Business Excellence programme at CEDEP.
Jorge Lopez
Manager Brazil Subsurface Technology
Shell
Jorge Lopez is a geophysicist with 28 years of experience working for Shell in many technical and managerial capacities, including assignments in R&D, Exploration, EOR, and Reservoir Monitoring, applied to reservoirs onshore and in deep water. He is credited with opening new fields of geophysical technology, evidenced by multiple patents, awards, and well-cited publications. He has been in Shell Brasil since 2019, leading the Subsurface Technology group, tasked with investing the ANP R&D obligation in a diverse portfolio of projects to improve upstream efficiency and enable the Energy Transition.
Chris Walker
Chief Geophysicist
BGP Offshore
Dr. Chris Walker received his BSc degree in quantum physics (1972) from the New University of Ulster, N. Ireland and his PhD (1977) in marine geophysics from Durham University, UK. With more than 45 years of oil industry experience in marine survey and source design, marine field operations, data processing and R&D, since 2002 his primary focus has been on establishing ocean bottom surveys as the primary industry technique for both development and exploration.
Marc Rocke
TGS
Marc is the Geophysics lead for the Operations division at TGS which delivers towed-streamer, OBN, and Hi-Res 3D surveys globally. Marc received formal training in Petroleum Geoscience, however he has spent the last 20 years of his career in data processing and acquisition geophysics roles for OBN and towed-streamer.
Peter Hanssen
Equinor
Dr. Peter Hanssen studied physics and geophysics at the Technical University of Berlin, where he obtained an MSc in neural networks for seismic inversion. After working at the GFZ Potsdam he started his PhD on sub-basalt imaging at the University of Edinburgh while based at the Edinburgh Anisotropy Project. Peter continued his work on seismic imaging of the Atlantic Margin at the British Geological Survey, before moving to Norsk Hydro's research centre in Bergen, Norway, where he worked on sub-salt imaging using additional gravity data from AUVs. He began research into passive seismic exploration using surface waves from microseisms, before overseeing the development of the “Deep Blue” electromagnetic system as a team leader at Statoil. Peter was the Task Manager for geophysical instrumentation and acquisition and led the work on more environmentally friendly seismic sources such as the BASS marine vibrator. He is now the head of geophysical research department at Equinor, and automation for environmental-friendlier geophysical acquisitions is his passion.
Diego Chagas
Petrobras
Diego is a master geophysicist at Petrobras with a degree in Physics from the State University of Rio de Janeiro (UERJ). With 20 years of experience in the petroleum industry, he was the creator and coordinator of the Geophysics Acquisition Operations Center. Today, he works as Reservoir Manager of Libra Asset, has an MBA in business management from FGV and is also a member of the SBGf’s board.
Jose Jorge Brum
Petrobras
Jose Jorge began his career at Petrobras in the ES-26 land seismic crew, where he worked from 2007 to 2009. He then joined the technical team of seismic acquisition based in Rio de Janeiro, working on both land and marine acquisition.
He started his managerial career in 2012 as a Coordinator and was a Sector Manager from 2020 to 2025. Since 2025 he is the manager of Geophysical Acquisition. He has led strategic projects and significantly contributed to the technological and operational advancement of the company.Jose Jorge has a keen interest in various aspects of Geophysics, including marine data acquisition, source and receiver technologies, and project management methodologies such as Agile methods among others. His expertise spans a wide range of techniques in geophysical data acquisition and processing, focusing on reducing costs, minimizing environmental impacts, and integrating new technologies.
Outside of his professional environment, Jose Jorge has a great interest in music, astronomy and, most importantly, in Flamengo.
