Searcher, Equatorial Guinea government collaborate on offshore seismic reprocessing

The modernized legacy data will be available to bidders for next month’s offshore licensing round.
April 2, 2026
2 min read

Key highlights:

  • Searcher Seismic has completed a seismic reprocessing project in Equatorial Guinea, utilizing PSDM and FWI techniques to produce high-resolution data, significantly improving geological imaging ahead of the EG Ronda 2026 licensing round.
  • Subsea7 has secured a contract from Noble Energy for subsea installation on the Aseng gas project, involving the deployment of flowlines, umbilicals and subsea structures in challenging 800-m depths, with offshore activities set to commence soon.

Searcher Seismic has completed a seismic reprocessing project in Equatorial Guinea, in partnership with the government’s Ministry of Mines and Hydrocarbons.

The program applied modern broadband pre-stack depth migration (PSDM) and full waveform inversion (FWI) techniques to legacy datasets to create 7,337 km of high-resolution data over prospective offshore basins.

Improved imaging of complex geological structures should help provide clearer insights into hydrocarbon systems and potential reservoirs, Searcher said, ahead of the opening this month of the EG Ronda 2026 licensing round.

“As the first project of its kind in this region, the clarity and resolution now available will fundamentally change how companies approach Equatorial Guinea’s offshore exploration,” said Alan Hopping, Searcher’s managing director.

Subsea7, Noble Energy ink subsea installation contract

In the same region, Subsea7 secured a contract by Noble Energy EG Ltd. (a Chevron company) for the subsea installation scope on the Aseng gas monetisation project. 

The offshore Equatorial Guinea project entails a single-well tieback connecting Aseng Field to the existing Alen platform.

Subsea7 will handle the transport and installation of about 19 km of rigid production flowline and 20 km of umbilicals, along with associated subsea structures and tie-ins in water depths of 800 m.

Project management and engineering has started. This work is being managed from Subsea7’s Paris office, with additional support from teams in Lisbon and Equatorial Guinea.

Offshore activities are expected to begin this year.

Subsea7 reported that the contract is worth between $150 million and $300 million.

Pelotas Basin fast-track data available this summer

Searcher has also issued final data for Phase 1 and fast-track data for Phase 2 of its collaborative Pelotas Basin project offshore South America with Shearwater Geoservices. 

This provides the first detailed and comprehensive view into the subsurface architecture of the deepwater region, the company reported.

The next phase of fast-track data should be available in July.

About the Author

Jeremy Beckman

Editor, Europe

Jeremy Beckman has been Editor Europe, Offshore since 1992. Prior to joining Offshore he was a freelance journalist for eight years, working for a variety of electronics, computing and scientific journals in the UK. He regularly writes news columns on trends and events both in the NW Europe offshore region and globally. He also writes features on developments and technology in exploration and production.

Sign up for our eNewsletters
Get the latest news and updates