Jan De Nul acquires the Manifa Field Causeway and island construction project

News - March 2, 2007

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Jan de Nul has provided more details about the contracts for the Manifa Field Causeway and Island Construction Project awarded to it by Saudi Aramco, Saudi Arabia.

The combined value of the contracts makes it one of the largest dredging contracts in recent years. The scope of this project comprises the design and construction of some 41km of main causeway and associated lateral secondary causeways which will provide vehicle and service access to 25 drilling/production islands and two water injection islands.

The proposed scheme also includes the design and construction of bridges and culverts, dredging works, berthing areas, roll-on/roll-off facilities and the partial demolition and clearance of existing subsea pipelines.

The principal elements of the scheme are listed below:

a) The construction of the main and lateral (secondary) causeways to service 25 drilling/production islands and two water injection islands. The causeways support a roadway and facilities/zones for the future installation of pipelines,
electrical cables and associated facilities. The form of construction will be sand fill with armour protection and surfacing.

b) The construction of 25 oil drilling/production islands, all linked to the main causeway by the lateral secondary causeways. The form of construction will be sand fill with armour protection and a compacted, bladed island surface.

c) The construction of two water injection islands connected to land by causeways. The form of construction will be sand fill with armour protection and a compacted, bladed island surface.

d) A 2.4km long bridge at the southern end of the main causeway together with five short (180m) bridges and eight banks of culverts spaced along the causeways.

e) Dredging works will provide access channels for vessels, shore approaches for cables and subsea pipelines, subsea pipeline crossings of navigation channels and borrow areas for the collection of sand for reclamation.

f) The construction of two berthing areas (North and South) on the main causeway to accommodate Saudi Aramco vessels, including quayside and fixed ro-ro ramps.

g) The construction of a shore-side Ro-Ro facility adjacent to the landward section of the main causeway, to accommodate Saudi Aramco vessels, including quayside and fixed ro-ro ramps.

The reclamation works for the first islands at the site are targeted to start within a few weeks from the date of contract signature. The project is to be completed by December 2009.

Detailed engineering and design will be performed at the Jan De Nul engineering offices in Aalst, Belgium.

The causeway package is the first Lump Sum Turn Key contract awarded for the Manifa Programme.

The field, which will produce Arabian Heavy Crude, is expected to add 900,000 barrels per day of production capacity by mid-2011.

 

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