UTEC can deliver complete vessel and data acquisition packages equipped with Cores, CPT’s, environment grabs and box cores. The requirement for increased efficiency and real time monitoring of seabed sampling sensors have driven UTEC to re-think the design of the basic Vibrocorer and manufacture an electro-hydraulic system with ROV style sensors. Rate of penetration, recovery, inclination of system, depth and altitude are multiplexed to the surface to provide in situ real time monitoring.
UTEC own and operate a number of sample recovery systems including the ‘Mini’ CPT Datem Neptune, Van de Berg Roson and a Deep Push CPT along with various hydraulic vibrocore, drop core and grab sampling units.
The Geo Scope Deep Push CPT is a heavy marine deep push CPT rig able to retrieve 30m core samples in water depths up to 350 metres. The rig has successfully completed sampling works in the North Sea after being mobilised onboard the Kommandor Stuart and on vessels of opportunity thus creating a viable cost alternative to bore hole drilling.
UTEC also operate a high power electric twin-linear vibrocorer to producing a centrifugal force of 9090Kgs from a 415v, 3-phase, 50Hz power supply. This unit has a modular frame construction allowing for the recovery of 4, 5 or 6 metre continuous 86 mm diameter samples in water depths of up to 50 metres. This vibrocorer is suitable for obtaining cores in most marine sediments ranging from silt and sand through to gravel and stiff clay.
The Neptune 3000 MCPT incorporates the latest developments in miniature cone technology. The cone is designed specifically and features high precision built in electronics to increase the accuracy and stability of the cone data. The amplified data outputs allow much improved signal transfer between the cone and the sub sea CPT control electronics. The CPT cones are fitted with tip, friction sleeve and dual axis tilt as standard. There are various pore pressure sensor options available from 7bar to 350bar dependent on working depth. The cones are easily detachable from the CPT rod so as to minimize consumable costs, and each cone is supplied with a multipoint calibration. The data can be is viewed in real time and is use to define the geotechnical parameters of the sea bed.
