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Foundation and reinforcement work under water with Wassara

Highly efficient

In maritime projects, like drilling in harbours, the Wassara technique offers superior efficiency compared to conventional drilling methods. The capacity is falling quickly when drilling with air-powered DTH hammer. With Wassara the capacity and speed is maintained during the whole operation, the surrounding water does not affect the drilling.

No oil in the water

Another benefit with the Wassara technique is that it uses no oil, which eliminates the risk of any oil polluting the water. This is often a strict requirement when drilling in maritime areas.

Minimised risk of pressurising the formation

The likelihood of pressurising the formation is very low with Wassara. This is always a risk when drilling with air-powered DTH equipment. Cracks and cavities in the formation will be at risk of expanding drastically with the expanding air.


Example of successful project:

An illustration over the partly sunken ship Costa Concordia that sank outside of the Italian border, where Wassara was a part of the solution to get the ship up straight again and taken away.

The rescue of capsized cruise line Costa Concordia

An important part of the work is to secure the wreck, keeping it from sliding further down the slope it lies on. A vital part is played by the Wassara DTH hammer when drilling for the anchoring foundations.

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