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Boat Landing Installation

Kunde:

Anonymous

Ort:
Vereinigtes Königreich
Umfang:

Bilfinger UK were approached to install boat landing structures to the Beatrice platforms in the North Sea to the decommissioned assets owned by the client to allow the removal of an operational helideck and need for helicopter travel during the assets life in lighthouse mode (5-10 years).

Leistungen:
Projekt

Asset A:

  • Extensive planning and personnel briefings
  • Scope executed on the Beatrice A platform during derrick dismantle scope
  • Destruct of old Damaged redundant spider deck walkway and stair case
  • Destruct of old coatings on jacket leg and reinstate a splash zone coating
  • Install of 6 25 tonne air hoists and 30 tonne beam clamps to underdeck in preparation of heavy lift from dedicated supply vessel
  • Install of 1 large friction clamp to jacket leg and 2 half clamps to spider deck members
  • Lift 1st part sea ladder from supply vessel using platform crane and transfer to airhosts
  • Fit and tension structure to clamps 
  • Grout 2 half clamps spider deck members
  • Install new boat landing stair tower structure
  • Tension 4 friction clamps to new structures
  • Install new spider deck walkway and stair case to join new sea ladder
  • Coating repairs to new structure 
  • Install fall arrest system to new sea ladder 

Asset B:

  • Extensive planning and personnel briefings
  • Scope executed during well abandonment project on Ensco 80
  • Destruct of old Damaged redundant spider deck walkway 
  • Destruct of old coatings on jacket leg and reinstate a splash zone coating
  • Install of heavy winch and sub-frame to cellar deck 
  • Install of 8 25 tonne air hoists to underdeck in preparation of heavy lift from dedicated supply vessel
  • Install of 1 large friction clamp to jacket leg and 2 half clamps to spider deck members
  • Lift sea ladder from supply vessel using large drum winch and transfer to airhosts
  • Fit and tension sea ladder to clamps 
  • Grout 2 half clamps spider deck members
  • Install new spider deck walkway to join new sea ladder
  • Coating repairs to new structure 
  • Install fall arrest system to new sea ladder 

Asset C:

  • Extensive planning and personnel briefings
  • Scope executed during well abandonment project on Ensco 80
  • Set up heavy lifting equipment 
  • Remove old walkway section
  • Install 2 large half clamps
  • Fully tension sea ladder to 2 large friction clamps to jacket leg
  • Install new walkway section to join to new sea ladder
  • Coating repairs to new structure 
  • Install fall arrest system to new sea ladder 

Added value:

The result was a great success with the client satisfied that the objective was delivered safely and structures are now fully operational. Bilfinger UK have the expertise to interface with the client to successfully manage any issue that may arise during the preparation and the execution of any work scope.

  • No helicopters during lighthouse mode 
  • Ease of use with little training
  • Very high cost savings 
  • Installed with 25 tonne air hoist no crane available to reach install site
  • Installed via rope access riggers and platers
  • Long life structure to last over 10 years
  • Easy to install minimum parts assembled offshore
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