![]() ![]() The conductors were suspended on a Heerema Fabrication Group built Conductor Hang-off Frame made for this project. ![]() During the project, Heerema cut jacket legs at 7.3m diameter using a 288” Diamond Wire Cutting Tool developed alongside CUT UK, especially for the Brent Alpha removal - the largest leg diameter to have been cut this way," the company said.Īlso, during the Brent Alpha Heerema removed and transported the conductors with the jacket, which, Heerema says, is an entirely new way of decommissioning. "The Brent Alpha jacket removal presented novel challenges for Heerema, resulting in unique solutions. The jacket will end its lifecycle by being over 97% recycled. ![]() The removal of Brent Alpha jacket is Sleipnir’s fourth decommissioning job for this summer.įor the Brent Alpha jacket removal, Sleipnir arrived at the Brent Field located 186 km northeast of Scotland’s Shetland Islands on July 23, 2020, and completed the project by offloading the jacket onto the quayside at the AF Miljøbase decommissioning site in Vats, Norway on August 11, 2020. "This single jacket lift breaks Sleipnir’s recent record for lifting the 8100 mT Jotun-B jacket," Heerema Marine Contractors said Wednesday. The project’s success resulted from six years of close partnership and collaboration between all parties involved.Heerema Marine Contractors' giant semi-submersible crane vessel Sleipnir has broken its recently set heavy lifting record with the removal of Shell's 10100 mT Brent Alpha jacket in the UK North Sea. The record-breaking lift demonstrated the vessel’s capacity to install enormous structures at sea. Michel Hendriks, COO for Heerema: ‘The safe and successful installation of the 17,000-metric-tonne TEG module is a fantastic milestone for Heerema and Sleipnir. The team has been preparing this world record lift for years, and it was truly impressive to see how the planning culminated in just six hours when the world’s largest crane vessel Sleipnir helped us to put the enormous new process module into final position,’ says Lars Bo Christiansen, Project Director Deputy for TotalEnergies EP Denmark A/S. When all connections are welded, the installation team will hand over the baton to the TotalEnergies hook-up and commissioning team, who will focus on completing and powering up the installed platforms and reconnecting them to the existing North Sea infrastructure. In the coming weeks, the final Tyra II pieces – two bridges and a flare – will be installed. Afterward, they sailed one nautical mile to the final bare jacket while they raised the module by nine metres to then lower it onto the six legs.Īlso read: Heerema orders Motion Compensated Pile Gripper from Huisman With two enormous crane hooks, the team picked up the process module from the heavy transport vessel GPO Emerald. ![]() It required a lot of coordination, horsepower, and precision when the crew on Sleipnir had to install the enormous process module. Thanks to great weather conditions, the crane drivers got the green light to lift the module into its final position less than 24 hours after its arrival and four days ahead of schedule. The sea fastening helped to ensure a safe and stable journey from Indonesia. The lift has been prepared for years, and every single step prior to, during, and post lifting has been outlined in a several hundred pages long manual prepared by Heerema Marine Contractors and TotalEnergies.Īlso read: Heerema’s Thialf enters the Baltic Sea for the first time Installation in six hoursĪfter the processing module arrived at the Tyra field on October 3, the offshore crew were immediately into action mode and started to remove the sea fastening below the 47-metre-tall module. Nothing was left to chance when the two crane drivers, with the support of more than 260 offshore workers onboard semi-submersible crane vessel Sleipnir, lifted what corresponds to the weight of around two Eiffel Towers. The lift of the 17,000-metric-tonne heavy process module broke a world record as the heaviest crane lift ever undertaken at sea. Heerema Marine Contractors’ Sleipnir safely installed TotalEnergies’ biggest Tyra II topside on the last remaining bare jacket at the Tyra field on 4 October. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |