Grouting and injection
In 2018 RaKon was requested to contribute when a new riser was installed at Troll A. The jobb was to grout a sealtube annulus to set up an extra barricade against the seawater. The grout operation found place inside of the riser shaft at 300 meter water depth. Meaning that we had a water pressure from the sea water of around 30 bar to grout against.
The operation was planed in detail, and method, equipment and grout material was proven in a full-scale test.
The operation was successfully performed in march 2020.
This was not the first time for RaKon. We did the same job in 2012, last time a riser was implemented at Troll.
2012 and 2020
Development of method and equipment
RaKon has successfully preformed advanced grouting jobs for Equinor.