Calendar An icon of a desk calendar. Cancel An icon of a circle with a diagonal line across. Caret An icon of a block arrow pointing to the right. Email An icon of a paper envelope. Facebook An icon of the Facebook "f" mark. Google An icon of the Google "G" mark. Linked In An icon of the Linked In "in" mark. Logout An icon representing logout. Profile An icon that resembles human head and shoulders. Telephone An icon of a traditional telephone receiver. Tick An icon of a tick mark. Is Public An icon of a human eye and eyelashes. Is Not Public An icon of a human eye and eyelashes with a diagonal line through it. Pause Icon A two-lined pause icon for stopping interactions. Quote Mark A opening quote mark. Quote Mark A closing quote mark. Arrow An icon of an arrow. Folder An icon of a paper folder. Breaking An icon of an exclamation mark on a circular background. Camera An icon of a digital camera. Caret An icon of a caret arrow. Clock An icon of a clock face. Close An icon of the an X shape. Close Icon An icon used to represent where to interact to collapse or dismiss a component Comment An icon of a speech bubble. Comments An icon of a speech bubble, denoting user comments. Ellipsis An icon of 3 horizontal dots. Envelope An icon of a paper envelope. Facebook An icon of a facebook f logo. Camera An icon of a digital camera. Home An icon of a house. Instagram An icon of the Instagram logo. LinkedIn An icon of the LinkedIn logo. Magnifying Glass An icon of a magnifying glass. Search Icon A magnifying glass icon that is used to represent the function of searching. Menu An icon of 3 horizontal lines. Hamburger Menu Icon An icon used to represent a collapsed menu. Next An icon of an arrow pointing to the right. Notice An explanation mark centred inside a circle. Previous An icon of an arrow pointing to the left. Rating An icon of a star. Tag An icon of a tag. Twitter An icon of the Twitter logo. Video Camera An icon of a video camera shape. Speech Bubble Icon A icon displaying a speech bubble WhatsApp An icon of the WhatsApp logo. Information An icon of an information logo. Plus A mathematical 'plus' symbol. Duration An icon indicating Time. Success Tick An icon of a green tick. Success Tick Timeout An icon of a greyed out success tick. Loading Spinner An icon of a loading spinner.

Heerema’s Thialf removes Shell’s Goldeneye platform after installing structure in 2003

© Supplied by HeeremaThialf Goldeneye
Heerema's Thialf initially installed the Goldeneye platform in 2003

Heerema’s Thialf has removed Shell’s Goldeneye wellhead platform, almost 20 years after the semi-submersible crane vessel (SSCV) installed the structure.

The operations included removing the 1280 metric ton topside and the 3019 metric ton jacket before transportation to the AF Environmental Base in Norway for recycling and reuse.

Goldeneye was installed by Thialf in the central North Sea in 2003 and started up production from the gas-producing field the previous year.

Located about 80 miles north-east of Aberdeen, the platform included five platform wells in 120 metre water depth with a direct tie-back via the Goldeneye pipeline to the St Fergus gas plant, near Peterhead.

Cessation of production was granted in 2011 and Shell was given the green light to decommission the installation in 2019.

Shell is proposing to repurpose the Goldeneye pipeline to allow it to transport emissions as part of the Acorn carbon capture and storage (CCS) project, based at St Fergus.

© Supplied by Heerema
<br />It is anticipated that over 97% of Goldeneye will be recycled.

Removal campaign

The Goldeneye platform was removed using Heerema’s reverse installation method, starting with removing the 1280 metric ton topside in a single lift.

After removal, the topside was transferred to Thialf’s deck for transportation.

The Goldeneye jacket involved cutting skirt piles using Deco Subsea’s internal abrasive water jet cutting techniques at -3m below the seabed.

After which, the 3019 metric ton jacket was safely removed and remained suspended in Thialf’s cranes for transportation to Vats, Norway.

What’s next?

The Goldeneye platform has been safely set down at the AF Environmental Base yard in Vats, Norway, to be dismantled for reuse and recycling.

It is anticipated that over 97% of the material will be recycled.

Thialf will now undergo yard maintenance, including modifications to the vessel’s A-Frame to enable it to expand its service area and deliver solutions in the Baltic and the Black Sea.

Recommended for you


More from Energy Voice

Latest Posts