Aibel has handed over the second and final module to be installed on the Heidrun platform off Norway as part of Wintershall Dea’s subsea tie-back of the under-development Dvalin gas field.

The local contractor earlier this month delivered the 3500-tonne M40 gas processing module from its Haugesund yard in western Norway ready for sailaway to the field in the Norwegian Sea, after delivering the 400-tonne H25 injection module last year.

Handover of the modules completes the construction phase of the project, with installation work set to be completed on the platform in September 2020 ahead of planned start-up the following month.

Aibel has also cleared the area on the platform for installation of the modules, which will handle gas and condensate output from Dvalin, and is carrying out integration work.

The yard has used around 3.5 million man hours on the construction work without any serious incidents, while adopting a so-called One Team approach involving close collaboration between the contractor and Heidrun operator Equinor.

“I hope the collaboration in this project can become an example of how the supplier and customer can work together to ensure that the industry remains competitive and well equipped for the future,” Aibel chief executive Mads Andersen said.

A subsea template has earlier been installed by TechnipFMC at Dvalin, with development drilling using semi-submersible Transocean Arctic to be carried out this summer.

Wintershall Dea, together with partners Petoro and Edison, are developing Dvalin at an estimated cost of Nkr10.6 billion ($1.2 billion), based on the latest estimate issued in Norway’s state budget.

Gas from Dvalin will be partially processed on Heidrun and then transported in a new pipeline connected to the Polarled route for onward export to the onshore Nyhamna terminal before being further processed and then shipped to UK and European markets.

Field Development

Aibel delivers Dvalin module