Horizontal Directional Drilling

Gazoduc Pipeline

Gazoduc Pipeline

Scope

Michels used pilot hole intersect technology to install 2,273 metres of 20-inch steel pipe through solid rock under the St. Lawrence Seaway. Because the elevation of bedrock was fairly deep on the north side of the crossing, a telescoping method was used to drill 122 metres of 42-inch, 36-inch and 20-inch steel casing was driven down through the overburden soils to the bedrock.

Michels used its 840,000-pound drill rig set up on the north side to drill 1,487 linear metres and its 1.2 million-pound drill rig on the south side to drill 1,029 linear metres to intersect with it. The drill was conducted through limestone and shale bedrock ranging in strength from 3,000 psi to 8,000 psi. Overburden consisted of fine sand, clay and traces of gravel.

Because the crossing was performed during winter months when temperatures reached -42 degrees celsius, tents were erected on both sides for protection from the elements. Noise barriers were secured to the inside bracing of the north-side tent to keep noise below the acceptable decibel barriers.

Projects

Michels was subcontracted to provide all labour, equipment and materials required to complete two 36-inch diameter Horizontal Directional Drills (HDDs) on the King's North Connection Project, an 11-kilometre pipeline project.

Horizontal Directional Drilling

King's North Connection Project HDD

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King's North Connection Project HDD

Michels used HDD to complete a 800 metre of 12-inch pipe installation under the St. Lawrence River.

Horizontal Directional Drilling

St. Lawrence River Crossing

ON

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St. Lawrence River Crossing

Teamwork: Simply stated, it is less me and more we.

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Great teamwork can do great things.

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