NodeScanner™
Certain jacket nodes—fatigue-sensitive nodes—are subject to significant dynamic loading and require regular inspections to detect the initiation of fatigue cracks. The complex nature of the welds rule out inspections via ‘direct scanning,’ even with the best work-class ROVs, and the difficult access and dangerous conditions are often outside the capabilities of divers.
NodeScanner™
TSC Subsea’s field-proven NodeScanner™ system addresses these issues. An ROV places the NodeScanner on the brace, then stands back and monitors the inspection progress. The NodeScanner’s unique teach-and-learn system provides the dexterity and control needed to quickly and accurately scan the area in question.
The NodeScanner system, designed to work in tandem with ROVs in the deployment of TSC Subsea’s ACFM® Array probes, inspects difficult-to-reach areas and complex geometries such as tubular welded node joints. The multi-element arrays ensure maximum weld coverage and POD, whilst limiting false calls.
The NodeScanner:
- Can be deployed with TSC Subsea’s ACFM®, ART, or PEC systems
- Is designed to fit the diameter of any brace
- Offers buoyancy that reduces its weight, reducing drag on the ROV
- Uses precise, motorized movement to accurately track the geometry of the weld
- Uses passive compliance to reduce the effects of an uneven inspection surface
- Provides camera views that allow operators to predict a correct scan path
- Offers an optional wheelbase that can be used instead of the unit’s frame
Our Services
Subsea Structures
Splash Zone
Vessels and FPSOs
Flexible Risers
Pipelines
Grouting
Case Studies
Subsea Grout Integrity Assessment with ART
Grout integrity verification of subsea structures is now possible thanks to TSC Subsea’s innovative technology and the development of its unique solution, the ART GUIDE scanner.
Subsea Grout Integrity Assessment with ART
Grout integrity verification of subsea structures is now possible thanks to TSC Subsea’s innovative technology and the development of its unique solution, the ART GUIDE scanner.
Deploying dual NDT methods for the inspection of complex welds.
The Challenge TSC Subsea received a request from a major operator, Equinor AS, to evaluate the feasibility of inspecting subsea risers coated with thermally sprayed aluminium (TSA). Specifically, the inspection focused on assessing the fillet weld surrounding an anode...
Inspecting Concrete Weighed Pipes with SPECTA
The Challenge TSC Subsea was contracted by a client to carry out wall thickness assessment of Condensate Export Pipeline (CEP) and Pipeline End Manifold (PLEM) without removing the protective concrete weight coat (CWC). The assessment was required as the client...
Subsea Phased Array (SPA)
TSC Subsea were challenged to investigate sand erosion concerns on subsea structure piping off the coast of Western Australia. The inspection campaign covered multiple assets including Pipeline End Manifold (PLEM), tie in spool and subsea cooling skid in the Halyard Field and a PLEM in the East Spar Field.
Solutions