Workshop 1

Seismic Marine Sources: State of the Art

Sunday 4 June 2023 | Room Stolz 2



  • Christopher Walker (BGP Offshore)
  • Edward Hager (Shearwater GeoServices)
  • Luca de Vincenzi (OCRE Geosciences Services)
  • Nicolas Tellier (Sercel)
  • Xander Campman (Shell)



A new focus within marine sources is yet drawing ever-increasing expectations in the industry to meet key evolutions in offshore seismic acquisition. The environmental impact of sources requires due assessment and mitigation measures, lower frequencies are more than ever expected, and the final application steadily transitions from hydrocarbons to new energies. This workshop intends to draw a state of the art of existing and expected solutions to address at best a changing environment.

Sub-Topics that will be covered in the workshop:

  • Seismic marine sources: historical review and current state
  • Low-frequency sources
  • Low amplitude sources (Marine Vibrators, time distributed sources)
  • Understanding & mitigating the environmental impact of marine sources
  • Source array design & geometry
  • Source specificities for the energy transition
  • 4D, autonomous sources and steering


Participant Profile

The target participants include (but not limited to):

  • Geoscientists
  • Acquisition specialists
  • Exploration managers
  • Researchers who have an interest in new advancements on marine seismic sources and their applications
  • Onboard client representatives


Workshop Programme

09:30Introduction: historical review and current state of seismic marine sources – L. de Vincenzi (OCRE Geoscience Services)
Part 1: Low-frequency sources
09:45Achieving the best of low and high frequencies with broadband marine seismic sources – J. Large (Sercel)
10:00Improved low frequency output from seismic airguns by firing at shallow depths – M. Landro (NTNU)
10:15Extending low frequencies with a conventional airgun array using frequency locking – S. Rentsch (Shearwater)
10:30Low frequency source (SLO) campaign in Egypt – X. Campman (Shell)
11:05Coffee Break
Part 2: Low amplitude sources (Marine Vibrators, time distributed impulsive sources)
11:25BASS marine vibrator from idea to realisation – Melbø (SW)
11:40Marine vibrator field test in East Malaysia – T. Singh (Petronas)
11:553D UHR latest technology for sea bottom investigation – D. Taliana (Fugro Italy)
12:10Lunch Break
Part 3: Understanding & mitigating the environmental impact of marine sources
13:25Equipment, methods and solutions that reduce disturbance during seismic surveys – S. Ronen (Sercel)
13:40Evolving challenges of addressing potential impacts of underwater sound – D. Hedgeland (BP)
13:55E-source: a new future – E. Hager (Shearwater)
14:10Low-impact source test, including environmental assessment and underwater sound monitoring – X. Campman (Shell)
14:45Coffee Break
Part 4: Innovation
15:05Innovation in survey design – P. Dehlie (AKER-BP)
15:20Geophysical application for mineral investigation – A. Citlali Ramirez (TGS)
15:35The role of sustainable and autonomous seismic sources – T. Manning (BP)
15:50Real-time quality assurance in simultaneously operating marine vibrators – D. Roy (APS, Xander)
16:20Open topic / Panel
17:00End of the Workshop