Since mid-January, vibration trucks have been driving around the 500 km² Greenstore area to collect data on the many layers of the subsoil down to a depth of approximately 3,000 metres. The trucks are now on their way back to France.
To carry out the survey, the project has been in close and direct dialogue with 3,000 landowners. Furthermore, all residents in the area have been affected by the survey in one way or another, whether by seeing geophones at the roadside, holding up behind a vibration truck in traffic, or hearing and feeling the vibrations from them.
“We have generally been received surprisingly well and have encountered openness and curiosity from residents and landowners both in towns and in the countryside. We would like to extend a huge thank you to everyone for their excellent cooperation,” says Henrik Busk, Head of Exploration at Harbour Energy and responsible for the survey.
Geophones have been placed at 160,000 points across the area, and the vibration trucks have collectively covered nearly 6,000 kilometres since they first set out on their routes on 17 January.
“Let me give a special mention to the large-scale farmers who have made their fields and surrounding roads available. We have had a really good dialogue with them. They have shown great understanding and flexibility towards the project, and it is my clear impression that they have a sincere desire to help the green transition along,” says Henrik Busk.
Next steps
All geophones have been collected and their data downloaded, and now the computers take over. The enormous dataset will be processed and analysed by international specialists, which will take a couple of months. The end result will be a detailed, three-dimensional image of the subsurface.
The next step in the work programme to be carried out by Harbour Energy is a test drilling to be conducted over the summer. Initial activities are now underway on a private field near Fårup.
The purpose of the drilling is to retrieve core samples and take measurements of the subsoil’s many layers down to a depth of over three kilometres. The results of the test drilling, together with the results of the seismic survey, will form the basis for the decision on whether Harbour Energy should apply to the Danish Energy Agency for a licence to establish a geological CO2 storage site.
