Jumbo main installation contractor for EnQuest Producer

abarrelfullabarrelfull wrote on 06 Dec 2012 07:28
Tags: enquest europe jumbo north-sea services uk


Jumbo has been awarded a FPSO mooring, installation and hook-up contract by EnQuest. EnQuest is redeveloping the Ardmore and Duncan fields as Alma and Galia respectively. The project scope is the mooring spread installation and FPSO tow out and hook up. This will be the first offshore project in which Jumbo acts as the main contractor instead of being the subcontractor.

Alma and Galia fields
EnQuest is redeveloping the Alma and Galia fields, located in Blocks 30/24, 30/25 and 30/29, 310km south-east of Aberdeen in the UK North Sea. The fields will be brought on stream in 2013 using the Floating, Production, Storage and Offloading (FPSO) vessel ‘EnQuest Producer’, formerly known as the ‘Uisge Gorm’. This FPSO is currently under refurbishment at a yard in Hamburg, Germany.

Efficient mooring installation
Jumbo’s Heavy Lift Vessel Fairplayer will install the mooring spread for the ‘EnQuest Producer’ in the middle of 2013. Utilizing the enormous hold and the onboard 900t mast cranes Jumbo’s Fairplayer takes all equipment on board, transits to site and installs all equipment in one go. To ensure station keeping, the Fairplayer’s Dynamic Positioning System (DP2) will be used during installation activities.

The complete EnQuest project scope:

  1. Storage of the chains and wires
  2. Mooring leg installation
    • Fabrication of the anchor piles
    • Preparation, mobilisation of HLV Fairplayer, transit to field
    • Installation of the anchor piles (9 pieces length 32-40m, diameter 48 inch, 72.5-84.5t)
    • Installation bottom chain (9 x 130m, 142mm, 58t each)
    • Installation mooring wires (spiral strand, 9 x 1150m, 94t each)
    • Installation top chain (9 x 715m, 142mm, 316t each)
    • Pre-tensioning
    • Demobilisation of HLV Fairplayer
  3. FPSO tow out and hook-up
    • FPSO tow preparations
    • Tow from yard in Hamburg to the field
    • Field approach and station keeping
    • Connecting of mooring legs
    • Final tensioning of the mooring legs

Main installation contractor
During the past decade Jumbo’s offshore division has built up a solid and reliable reputation as a combined transport and subsea installation company in the offshore industry. For the EnQuest project Jumbo will act as the main contractor, a well considered step in the development of Jumbo’s Offshore division. Jumbo’s Director Offshore & Operations, Mr Van Eerten: ‘We have the required skills and knowledge to complete this project successfully. We appreciate the confidence shown by EnQuest in awarding us this contract, giving Jumbo the opportunity to become main contractor for the first time.’

Jumbo awarded the FPSO tow-out and hook-up scope to experienced and reliable contractor Boskalis Offshore - Marine Contracting (formerly SMIT Marine Projects). Boskalis Offshore Business Unit Manager, Mr. Vogelaar: ‘We are pleased with the confidence both EnQuest and Jumbo are having in our capabilities to assist Jumbo in this interesting project and look forward to a safe and reliable execution.’

With the contract in hand, Jumbo is presently conducting engineering and preparation works. The pile fabrication order has been placed.


Unless otherwise stated, the content of this page is licensed under Creative Commons Attribution-ShareAlike 3.0 License