Pierce field lifetime extension
Replacement of Haewene BRIM FPSO mooring system
Scope of work
|Project||Jumbo’s scope of work for this extremely short-track project consisted of the Transport and Installation of 8-off anchor piles including installation and pre-tensioning of 8-off bottom chain segments (200t tension at seabed). Finally, 5-off Spiral Strand Wires had to be connected to 5-off bottom chain segments and abandoned on the seabed.|
|Location||Pierce Field, UK Block 23/22a and 23/27|
|Water depth||86 m|
|Client/Operator||Bluewater Energy Services / Shell|
Replacement of Haewene Brim FPSO mooring system
As part of an ongoing program to extend the lifetime of the Bluewater-owned FPSO Haewene Brim, it was necessary to replace the existing mooring system. Jumbo was tasked with the Transport and Installation of 8 anchor piles sourced from Germany, which were to be driven into the seabed in the Pierce field (offshore Aberdeen).
This project involved not only the installation and pretensioning of 8 bottom chain segments, each with a tension of 200 tons at the seabed, but also the connection of 5 Spiral Strand Wires to 5 bottom chain segments, which were subsequently abandoned on the seabed.
Within a tight timeframe of 3 months from the contract award and while adhering to the given installation window, Jumbo successfully completed the offshore installation in a safe and efficient manner. Additionally, Jumbo designed and utilized a pile guide frame to ensure precise installation of the anchor piles according to the tolerances specified by the client.
|Quantity / Size / Weight||8-leg FPSO Mooring System comprising of:
• 8 x 84” 25,5 m Driven Anchor Piles
• 1,290 m of Ø 147 mm Chain
• 2,300 m of Ø 152 mm sheathed Spiral Strand Wire
|HLCV Fairplayer and OCV Olympic Zeus
• Menck MHU-500T Hammer
• Pile Guide Frame (purpose-built)
• SSW Reel Drive System
• 2 x Work Class ROVs
• Gypsy Winch for chain handling