Curtain up for the next Dvalin film: Insights into the installation of Xmas trees
A key milestone in our own operated Dvalin project – the installation of the 52 tonnes Xmas trees at the end of last year – is now on film. After the successful installation of the 3,500 tonnes module in August 2019, our new film enables all of us again to participate in another important moment for this project.
In December 2019 and under harsh weather conditions in the Norwegian Sea, the 52 tonnes Xmas trees were lowered almost 400 metres down to the seabed at the Dvalin field, 260 kilometres north of Kristiansund. The Xmas trees are a set of valves and other equipment that secures the well and are key components for drilling the production wells at Dvalin.
“It was a complex subsea operation with big swells, waves and tide. Under these conditions, the rig was constantly moving, and it was very challenging to control the 52 tonnes Xmas trees and let them safely down to the wellhead on the seabed. It required a high level of coordination between all the parties involved. A great job performed by Transocean and the service companies on the rig! They all worked together as a great team to make this big milestone happen”, said Tore Øian, Dvalin drilling manager.
The Dvalin field is being developed as a subsea tieback to the Equinor operated Heidrun platform, using a subsea template on the seabed. Another example of our sustainable strategy to develop near existing infrastructure.
The Dvalin project now moves from the drilling phase to the completion phase – into the direction of first gas!
See more of the great job done in the video. Enjoy!
The Dvalin gas field in the Norwegian Sea is being developed with four subsea wells, tied back to the Equinor operated Heidrun host platform. The gas from Dvalin will be transported to the Heidrun platform via a 15-kilometre pipeline. From there, it will be sent to the Polarled gas transportation system via a 7.5-kilometre pipeline, before it will be further processed to dry gas at the Nyhamna onshore gas terminal. Finally, the gas will be transported via Gassled to the market.
Partnership: Wintershall Dea (operator 55%), Petoro (35%), Edison (10%)
Location: Approximately 259 kilometres north of Kristiansund in the mid of Norway and 15 kilometres northwest of the Heidrun field and 35 kilometres south of the Skarv field in the Norwegian Sea.