James Fisher Subsea Excavation launches new jetting technologyEquipment & Technology // July 20, 2017
James Fisher Subsea Excavation (JFSE), a part of James Fisher and Sons plc, has announced the introduction of centrally-located jetting systems to its mass/controlled flow excavation (M/CFE) equipment spreads.
The high velocity water jet, designed, developed and patented by JFSE, facilitates the excavation of soils previously considered too dense to excavate using traditional mass/controlled flow techniques.
Moving away from customary designs which place jets at the side of M/CFE tools, JFSE’s innovative technology dramatically reduces velocity degradation.
JFSE’s excavators will now be capable of cutting soils with shear strengths up to double that which any other M/CFE system can realise. JFSE is the only M/CFE provider that can place its jets centrally.
The company says the jets will "markedly improve efficiency" where additional tooling was required to complete a project due to the density of the soils thereby helping to lower costs for clients. They will also decrease operational time on a number of excavations.
The development of this new technology follows the recent successful launch of the MultiROV, an exclusive ROV system which provides new levels of controllability and productivity, as well as the Twin T8000 which the company claims has the highest volume output of any subsea excavator in the world.