Heerema’s SSCV Sleipnir has securely and also sustainably eliminated Shell’s 10100 mT Brent Alpha coat. This solitary coat lift breaks Sleipnir’s current document for raising the 8100 mT Jotun- B coat.
This task is Sleipnir’s 4th deactivating work for this summer season. The vessel will certainly remain to be hectic in the North Sea prior to switching the biggest lifts for among the tiniest with the installment of Dana Petroleum’s P11-Unity Platform later on this year.
So much, Sleipnir has actually securely eliminated and also delivered greater than 43900 mT of deactivated offshore framework for reusing over this summer season project.

Image Credits: hmc.heerema.com
For the Brent Alpha coat elimination, Sleipnir got to the Brent Field situated 186 kilometres northeast of Scotland’s Shetland Islands on July 23, 2020 and also finished the task by unloading the coat onto the quayside at the AF Milj øbase deactivating website in Vats, Norway on August 11, 2020.
The Brent Alpha coat elimination offered unique obstacles for Heerema, causing one-of-a-kind services. During the task, Heerema reduced coat legs at 7.3 m size making use of a 288″ Diamond Wire Cutting Tool created together with CUT UK, particularly for the Brent Alpha elimination– the biggest leg size to have actually been reduced by doing this.

Image Credits: hmc.heerema.com
Also, throughout this task Heerema got rid of and also delivered the conductors with the coat, a completely brand-new means of deactivating. The conductors were put on hold on a Heerema Fabrication Group constructed Conductor Hang- off Frame created this task.
Sleipnir is the globe’s most lasting SSCV, and also throughout the task the vessel did the complete elimination procedures while operating on emission-reducing LNG gas. Using LNG, Sleipnir lowers CARBON DIOXIDE discharges by 25%, lowers NOx discharges by 92%, lowers SOx discharges by 99%, and also Particulate Matters by around 99% contrasted to standard Marine Gas Oil crane vessels.

Image Credits: hmc.heerema.com
Now that the Brent Alpha coat has actually been securely and also sustainably delivered to Vats, it will certainly finish its lifecycle by moring than 97% reused.
Heerema’s Decommissioning Director, Jeroen van Oosten kept in mind that ‘there were quite some technical challenges during this record-breaking lift. Such as the cutting of the 3 x 288″ legs of the platform. However, due to the excellent preparation and perseverance during execution, we successfully delivered this jacket safely and sustainably to Vats for disposal. An outstanding achievement for all involved.’
It is vital to discuss that all business included adhered to the stringent federal government standards to shield their labor forces throughout the continuous COVID-19 episode. For Heerema, protecting our workers and also those that function together with Heerema is constantly the leading concern.
Reference: hmc.heerema.com