Boskalis signs fallpipe vessel contract with KeppelVessel & ROV News // February 8, 2010
Artist's impression of Royal Boskalis Westminster's new fallpipe vessel.
Royal Boskalis Westminster has signed a contract with Singapore-based Keppel Singmarine Pte Ltd for the construction and completion of a fallpipe vessel. The vessel with an overall length of 159m and is expected to be completed late 2011.
The vessel will be deployed in oil and gas offshore projects.
Fallpipe vessels are designed to place rocks in deep water with great precision in order to provide protection for oil and gas pipelines.
The vessel will have a flexible fallpipe with a ROV at the lower end for positioning rock, which will be lowered through the fall pipe at a controlled rate while the vessel moves along its track under dynamic control.
The ROV is controlled from the ship, and can be precisely positioned above the job.
Boskalis currently operates two fall pipe vessels: Seahorse and Sandpiper. Seahorse can be fitted with an 'A' frame located on the stern and an ROV-steered clamshell grab, making it possible to dredge down to depths of 1,000m.