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Seabed preparations, PGN

The pipeline between Pulau Pemping, Indonesia, and Pulau Sakra, Singapore, is the final link of the transportation system for natural gas from onshore fields on South Sumatra to Singapore. The successful completion of the Engineering, Procurement and Construction contracts for the 27-kilometers 28-inch gas pipeline with a 96-core fibre optic cable in one of the busiest ports and shipping traffic zones of the world marked a milestone for Boskalis. The scope of work comprised not only seabed preparations and protective rock berm installation - Boskalis Offshore core activities - but also pipeline manufacturing and installation.

The following comprehensive scope of work has been completed on a lump sum basis in two countries, with two clients and under three different contracts:

  • Construction of two landfalls: a cofferdam and 200-meters pipe pull at Pulau Sakra and a trench in shallow reef with 700-meters pipe pull at Pulau Pemping.
  • Seabed preparation for pipe lay: trench dredging and seabed levelling.
  • Procurement and installation of 28-inch concrete coated line pipe, grade X-70, and 96-core double armoured fibre optic cable.
  • Design verification of both a rock berm (drop and drag of 22-tonnes anchors in Singapore waters) and its filter layer (impact on cable of falling rock).
  • Procurement of 2,150,000 tonnes of rock armour and filter material and installation over a length of 25 kilometers.
  • Hydro-testing, drying and precommissioning of pipeline system.

Related projects

Selected filters
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Jotun A

The Jotun A FPSO, a 92,000 DWT FPSO capable of producing 70,000 bpd, began producing in 1999 on the Jotun field (Norway). As part of Vår Energi’s investment in increased oil recovery from the Balder field in the North Sea an upgrade of the Jotun FPSO is required. The Balder Future project will extend the life of the field (PL 001) by 2045, giving Norway’s oldest license a lifetime of 80 years.

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L10 -C -D & -G Decommissioning

Neptune Energy Netherlands B.V. (Neptune) has awarded Boskalis the contract for the removal, transport and load-in of three platforms. These platforms are located in the Dutch North Sea,
approximately 90 km west of Terschelling.

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Borssele ALPHA/BETA

Royal Boskalis Westminster is a leading global marine contractor and services provider. With safety as our core value, we offer a wide variety of specialist activities to the oil & gas and renewa-bles sectors. These activities include marine instal-lation and decommissioning, seabed intervention, marine transport and services, subsea services and marine survey. In addition, Boskalis is a global dredging contractor, provides towage and terminal services across the globe and delivers marine salvage solutions. By understanding what drives our clients we are able to provide the solutions that enable them to meet their specific business goals. For this reason we are constantly looking for new ways to broaden and optimize our offering and are committed to expanding our proposition, supported by our financial strength. With our committed professionals in engineering, project management and operations, 800 special-ized vessels and an unprecedented breadth of activities in 90 countries across six continents we help our clients in the offshore industry push boundaries and create new horizons.

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Çanakkale 1915 bridge

The 1915 Çanakkale Bridge, also known as the Çanakkale Strait Bridge, is a proposed suspension bridge being constructed in the Çanakkale area in Turkey. Situated just south of the towns of Lapseki in Asia and Sütlüce Village in Europe. The bridge will span the Dardanelles strait, about 10 km south of the Sea of Marmara.

Aberdeen bay offshore windfarm project

Boskalis was responsible for the eleven suction bucket jacket foundations, scour protection, 66 kV inter array and export cables and the installation of the wind turbine generators.

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NASR full field development

Boskalis was subcontracted to install 2 topsides and 3 jackets in the NASR and Umm Shait oil fields: The Accommodation Platform/AP Jacket, the Separation Platform/SP Jacket and the Gas Treatment Platform/GTP Jacket are installed in the NASR Field. The installed net weights of the jackets ranged from 2,270 to 3,070 metric tons.