Offshore staff
ABERDEEN, UK – Rotech Subsea has completed a major post-lay umbilical trenching scope for an unnamed global offshore services provider at the West Barracouta development project offshore Australia.
The company was contracted to bury 6,000 m (19,685 ft) of 118-mm (4.6-in.) diameter umbilical to client specification of 0.6 m (2 ft) top of cable.
The TRS1 jet trenching tool operated in water depths of up to 50 m LAT, experiencing soil conditions of medium to coarse grained sand as well as harder, more cohesive soils.
According to the company, the umbilical was easily trenched to client specification and its equipment was operational for only 22 hours of the entire project. In the soft soil areas, a trench depth between 1.3-1.6 m BOT was achieved at a progress rate of 3m/min. The depths were achieved with one pass.
04/26/2021
