Dvalin Module Lift Completed

Tuesday, August 6, 2019

The 3,500-metric-ton Dvalin module has been lifted aboard the Heidrun platform in the Norwegian Sea.

The three-hour operation on August 3 follows a major construction phase and ranks among the heaviest lifts onto an existing platform in the history of the Norwegian continental shelf.

The Wintershall Dea operated Dvalin field is a subsea gas development tied back to Heidrun, 15 kilometers to the northwest in the Norwegian Sea. In the case of Dvalin, some 700 yard workers have spent two and a half years building a dedicated gas treatment module.

“The Dvalin team has worked purposefully to safely construct and install this giant module in time and within budget. It is very satisfying to see this impressive technical feat carried out successfully and without incidents,” said Hugo Dijkgraaf, Chief Technology Officer (CTO) and Member of the Board for Wintershall Dea.

The Dvalin module was built at the Aibel yard in Haugesund on behalf of Equinor, which is the operator of the Heidrun platform. Wintershall Dea has worked closely with both companies to ensure smooth delivery of the unit.

“So far, there have been 3.5 million working hours carried out on the Dvalin project without a single serious injury. Although the project is still ongoing, I am incredibly proud that we have had such a clear focus on safe operation, while at the same time delivering against the project plan,” said Thomas Kainer, Senior Vice President, Major Project Dvalin for Wintershall Dea.

The lifting operation was carried out by the heavy lifting vessel Saipem 7000. The Dvalin module was lifted from the barge onto the Heidrun platform over the course of three hours.

Anita Albriktsen, Topsides Host Manager, said, "For those of us who have followed the construction of the module, from the first steel cut, through the pulling of 100,000 meters of cable and welding of 3,700 joints, to seeing it now on Heidrun, it was a great experience to see the module being lifted in place."

Categories: Engineering Industry News Activity Europe Production Installation

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