CLEANING

Cleaning

Subsea Cleaning Solutions

Based on our extensive expertise with subsea tools and cleaning principles, DECO

Subsea designs, manufactures and operates tailor-made subsea cleaning tools and

solutions to meet your specific cleaning requirements.

Cleaning with divers

Can be mechanical (brushes,…) or hydraulic (using high pressure guns)

Quay wall cleaning
Vessel cleaning
Hull cleaning
Jacket foundation pile cleaning
Jacket structure cleaning
…

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Jacket pile (internal) cleaning

When installing pre-piled jacket structures, often there is a period of several weeks between foundation pile driving and jacket installation. During this period, biological fouling develops on the surface of the pile walls.

Surface cleanliness of the inner pile walls is critical for effective grouting of the jacket pins into the foundation piles. Any loose debris and marine growth needs to be removed prior to jacket installation.

In addition, it is sometimes required to remove extra soil from the pile in order to accommodate the jacket pin length.

For this type of application, DECO Subsea designs, builds and operates inrunner-type robotic cleaning tools with dredging capabilities. Tools typically are equipped with rotating high pressure water jets, cameras and an airlift system.

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Monopile

(external) cleaning

When installing wind turbines on monopile foundations, it is not uncommon that there is a period of several weeks (or months) between monopile driving and installation of the transition piece. During this period, biological fouling develops on the surface of the monopile walls.

Surface cleanliness of the outer monopile walls is critical for effective grouting of the transition piece.

Therefore, any marine growth needs to be removed prior to installation and grouting of the transition piece.

DECO Subsea designs, builds and operates outrunner-type robotic cleaning tools equipped with rotating high pressure water jets for swift and effective monopile cleaning.