Decommissioning of Southern North Sea assets
Ashtead Technology’s Mechanical Solutions specialists were tasked with removing ageing subsea assets as part of platform decommissioning works on the UKCS.
With the ongoing shift to renewable energy sources, the UKCS presents many opportunities for the safe and efficient decommissioning of subsea assets.
Ashtead Technology’s Mechanical Solutions offering specialises in providing a range of in-house designed and engineered cutting, coating removal and dredging solutions; making us a compelling choice for a client looking to remove aged infrastructure from the LOGGS and CMS areas of the Southern North Sea.
Following consultation with the client, a tailor-made package was created for this workscope, to be operated on-site by 6 of Ashtead Technology’s Mechanical Solutions technicians. The package comprised of diamond wire saws in 11in, 22in and 42in size configurations, two hydraulic shears in MSD-2000 and MS-4000 specifications, and both 8in and 12in dredges, with a host of ancillary equipment to ensure reliable and effective performance.
In total, 239 cutting operations were carried out, with 124 dredging hours during this campaign.
Benefits and value
With 13 different cutting locations included in the scope, this diverse package was fitted to the client’s exact requirements. Ashtead Technology’s team of 6 technicians worked alongside the client, ensuring personnel continuity on staggered crew changes and improving operational safety.
This methodology allowed the site to be quickly prepared for work, effective action to be taken during the work scope, and safe removal of equipment from the area of operations following project completion.