Jan de Nul completing gas pipelineNews // July 18, 2003
The dredging works have been carried out in joint venture with Boskalis, with Jan De Nul as leading partner. The contract is executed for Powergas in Singapore and Perusahaan Gas Negara (PGN) in Indonesia.
This gas pipeline from Pulau Pemping Pulau Sakra will be used for the transport of gas from the Sumatra gas fields to Singapore.
The execution of the works was a real challenge because of the difficult sub sea circumstances and the complication of the busy shipping in the Strait of Singapore in which the works had to be carried out.
Jan De Nul was responsible for the engineering, the dredging and the installation of a protection rock layer for the 28 inch pipeline, and for the pipeline installation which was subcontracted to Global Industries.
The pipeline is situated underneath the two shipping routes of Singapore: the Main Strait coming from the West and the Philip Channel, the access to the Port from the East.
In the 9km Singapore section, hard rock material has been dredged by Jan De Nul's cutter suction dredger Marco Polo and split trailer Pinta.
On the Indonesian section, the seabed has been leveled to eliminate free spans. Here, Jan De Nul's backhoe dredge, Jerommeke and the dynamic positioned rock dumping vessel Pompeď were deployed.
In order to protect the pipeline from anchors of the largest ULCCs, more than two million tons of rock have been dumped.
The entire work will be completed end of July 2003.