Jan de Nul N.V., a leading dredging Belgian-based company plans to complete underwater works for "Sakhalin-3" oil / gas project in the summer of 2012, the Company said.
Jan de Nul signed the contract with the general contractor JSC Mezhregiontruboprovodstroy for participation in Gazprom’s offshore oil and gas project ‘Sakhalin-3’ in June 2011.
To execute the contract Jan de Nul had deployed its fleet of dredgers on Sakhalin: the trailing suction hopper dredger Leiv Eiriksson with holds capacity of 46,000 cbm, the TSHD Francis Beaufort of holds capacity of 11,300 cbm and the cutter section dredger Fernão De Magalhães equipped with powerful cutter of 7 MW.
The vessels completed dredging of 28.5km-long trenches at a depth of 90 m from the Kirinskoye oil and gas condensate offshore field to shore cofferdam. The trenches are intended for laying pipelines MEG 4,5", export pipeline 20" and pipe cable of control systems.
To reduce the risk of gas leakage in case of earthquakes the company’s TSHD Leiv Eiriksson dredged at a depth of 90 m five 4m-deep craters to replace weak soil, for installation six subsea, manifold and other gas-collection equipment.
In mid-August the fallpipe La Boudeuse joined the fleet of Jan de Nul for rock dumping. Besides, the vessel completed rockdumping and backfilling of pipelines to protect them from ice and for stabilization.
This year Jan de Nul also completed dredging the dock based in Chaivo for Exxon, dredging up more than 200,000 cbm of soil.
The company had performed dredging contracts for offshore oil and gas projects, "Sakhalin-1" (De Kastri, Tatar Strait, Chaivo, Orlan) and "Sakhalin-2" (Nakhodka, Prigorodnoye, Lunskoye and Piltunskoye).
Jan De Nul Group operating worldwide specializes in dredging and land reclamation, rock placing, trenching, rock dumping for oil and gas related offshore pipeline projects, quay walls, marine related projects, civil engineering and large-scale environmental remediation projects, with a solid reputation in turnkey projects. With a yearly turnover of EUR 1.9 billion, the company ranks among the international top of dredging contractors and the top of marine engineering contractors.