Issue #111, 25 July 2003
Jan de Nul nearing completion of pipeline
Belgian dredging contractor Jan De Nul reports that it is in the final stage of completing the 26km gas pipeline connection between Singapore and the Indonesian Island Pulau Pemping.
Dredging work for the pipeline 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.
The pipeline from Pulau Pemping Pulau Sakra will be used for the transport of gas from the Sumatra gas fields to Singapore.
Jan de Nul says the execution of the work was "a real challenge" because of the difficult sub sea circumstances and the complication of the busy shipping in the Straight 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 two key shipping routes: 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 dredge Marco Polo and split trailer dredge 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 work will be completed by the end of July, said the company.
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