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Øya, Norway

HDDs in Norway

Mira IKS, a consortium in Norway, plans to link up several Norwegian municipalities to a new waste new water treatment plant to be built near the town of Sømersand.  As part of this project, the Norwegian contractor has hired Visser & Smit Hanab to conduct four drilling operations at sites in Øya and Hammeren.  

DrillRig
250 ton
Soil
Clay (silt)
Material
PE
Diameter
315 mm, 355 mm, 450 mm
Length
880 meter, 890 meter, 1284 meter

On 5 January, V&SH started drilling the first sections in Øya: one with a length of around 880 metres and a diameter of 315 mm and one with a length of 890 metres and a diameter of 355  mm. In mid-February, Visser & Smit Hanab will start drilling two more sections in Hammeren. At the sites, four pipes will be laid for transporting sewage and drinking water.

 

In mid-February Visser & Smit Hanab started with another two drilling operations between the municipalities of Sørumsand and Hammeren in Norway. The new pipelines, made of 450-mm-diameter HDPE pipe, will convey wastewater to a wastewater treatment plant that is being built.

 

The HDD operations here measured 1,284 metres, making them the longest drill holes ever installed in Norway. That gives V&SH the Norwegian record.

 

The project was completed without incident, with the sand and clay subsurface forming no problem for the 250-tonne rig. The climate, however, was challenging: working in the snow at -18 °C takes some getting used to. V&SH set up a tent over the drill rig and pipeline site to prevent freezing.

 

The project was delivered on time, to the customer's complete satisfaction.