Perenco Welland Field | Grout Removal

Project scope 

DECO carried out the following work for Boskalis Offshore Marine Contracting:

Offshore Grout Dredging at the Welland WHPS. A purpose built grout dredging tool was
designed and constructed by Deco.


Grout dredging specifications

• 4 piles with 30” diameter

• 38 meter water depth

• Dredging to 4 meters below seabed to allow cutting

• Removal of 6 meters grout and 4 meters of London clay