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Denmark: PGS starts 2D regional rejuvenation for Denmark CCS storage screening

03 Jun 2024

Photo - see caption

A new PGS reprocessing project for Denmark will provide a regional screening product for carbon storage sites in Norwegian-Danish Basin aquifers.

Following a successful feasibility study, PGS is about to kick off a large Denmark 2D CCS reprocessing project covering up to 50,000 line km.  

A proven processing and imaging sequence has been developed based on PGS’ successful 2023 reprocessing of seven seismic sections from three 2D surveys over the Inez and Hanstholm fields. This feasibility study carried out in cooperation with GEUS, demonstrated the improvement possible using modern reprocessed 2D seismic data. It also showed that such data is relevant for screening carbon storage potential.  

This state-of-the-art 2D processing and imaging sequence, from pre-processing, through to tomography and final VTI Kirchhoff PSDM, illuminates potential CCS structures. 

Norwegian-Danish Basin Aquifer Options 

The anticipated main CO2 storage targets are Triassic Bunter Sandstone in the Skagerrak-Gassum Formation and mid-Jurassic Haldager Formation. Aquifer potential in the Oligocene-Miocene is expected in a favorable 800 – 3 000 m depth range. The area has marine shale seal lithology, with a regional chalk seal. Zechstein salt movement-induced structures are seen, with inter-salt mini basins and turtle structures. Trap structures have been identified in NordiCCS (Hanstholm) and other publications.

Sónia Pereira, Vice President of Europe Sales says 'This 2D reprocessing project will provide the industry with the necessary subsurface images for screening the Danish offshore and near offshore coast for CO2 storage in saline aquifers. If you are attending the upcoming Danish CCS conference on 4 June come to talk to us about the project, we will be showcasing the data.'

Photo - see caption
The 2D feasibility study over identified CCS structures shows the uplift value in reprocessing legacy 2D seismic to evaluate regional CCS potential. This seismic line shows subsurface salt-induced structure and is close to the Inez-1 well which was used in the velocity model building.

Find Out More

Contact to see the results of the feasibility study or to discuss prefunding opportunities for the 2024 reprocessing project. 

Original announcement link

Source: PGS

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