The OceanSENSE 4 is a 3,000 m-rated, ROV-mounted subsea leak and cement-return detection system for offshore construction, commissioning, production and decommissioning operations.
OceanSENSE detects minute particles of fluorescent tracing dyes in seawater. The sensor emits high-intensity light at a wavelength matched to the selected dye and analyses the resulting fluorescence, providing clear, software-based detection results without relying solely on visual interpretation.
With a typical detection range of 5–7 metres, the OceanSENSE SW 3K assists operators in locating leaks in hydraulic control systems, flowlines, risers and other subsea infrastructure. It can also confirm structural integrity during commissioning and identify cement returns at the seabed during well construction, plug and abandonment operations.
The bright-light design allows the system to operate while the ROV lights remain switched on, supporting safer and more efficient subsea operations.
Key features
ROV-mounted subsea leak and cement-return detector
3,000 m depth rating by design
Typical detection range of 5–7 m
Detects minute concentrations of fluorescent tracing dyes
Software-based results reduce operator subjectivity
Bright-light operation does not require the ROV lights to be switched off
Compact anodised-aluminium housing
RS232 and RS485 data communication
MCBH8M wet-mate connector
Windows application interface
Suitable for construction, commissioning, production and decommissioning
Detectable media
Rhodamine dyes, including RX9022 and B275
Fluorescein
Pelagic 100 and Pelagic 100 Pink
Champion Clear Dye
Hydrocarbons
Additional detectable dyes subject to confirmation
Technical specifications
Model: OceanSENSE SW 3K
OTAQ part number: OS-200100
Depth rating: 3,000 m by design
Maximum detection range: 5–7 m
Housing material: anodised aluminium
Weight in air: 1.9 kg
Weight in water: 0.97 kg
Input voltage: 18–32 VDC
Power requirement: 250 mA at 24 VDC
Data interface: RS232 / RS485
Connector: MCBH8M wet mate
Operator interface: Windows application or configured laptop
Typical applications
Subsea hydraulic leak detection
Flowline and riser inspection
Subsea infrastructure integrity testing
Spool tie-in commissioning
Cement-return confirmation
Well construction
Plug and abandonment
Offshore production and decommissioning
Contact Oceanic Supply to confirm the required dye-detection configuration, ROV integration requirements, cable arrangement and availability before ordering.
