is a deepwater post-lay trenching machine,
designed for pipeline trenching upto a maximum
slope angle of 40°, in water depths
ranging from 10m to 2200m. Trenching is
performed by two “up-milling”
cutting discs, promoting trenching in soils
varying from very soft clays to 30MPa clay-stone.
Trench clearance is via two retracted
impeller pumps, capable of managing cobbles
without risk of damage.
trench width angle and deployment of the
cutting discs are individually adjustable,
enabling multi-pass deep trench formation.
A trench depth of 1.5m can be achieved in
a single pass, and a maximum trench depth
of 5.1m is achievable by multi-pass. Beluga
is a technological development of the successful
Giano™ system, aspects of its key
operating features have been optimised to
enhance the Beluga performance.
is free-swimming (neutrally buoyant) allowing
independent, controlled attachment to the
pipeline with minimal risk of damage. Once
attached to the pipeline the Beluga propels
itself using eight polyurethane-coated rollers
capable of overcoming anodes and buckle
arrestors. Pipeline safety features are
included in all aspects of Beluga operations.
to provide the most up to date, recent
specifications on these ROV systems. However,
ROV system specifications are changing
all the time, so please double check with
the manufacturer to insure the specifications
are correct before making a decision in
using or purchasing these systems.