Subsea Pipeline Inspection

Subsea pipeline inspections require the highest level of accuracy to produce high-quality data. Pipeline integrity depends on it. TSC Subsea ARTEMIS® and the ARTEMIS® vCompact, incorporating TSC Subsea’s industry-leading Acoustic Resonance Technology (ART), offer unique solutions for inspecting unpiggable pipes. ART is the only high-resolution technology that penetrates and inspects through thick subsea coating with lightweight, high-precision 3-axis scanning to produce high accuracy wall thickness measurements and corrosion mapping.

In-Service External Subsea Pipeline Inspection


The TSC Subsea ARTEMIS® ART system enables subsea pipeline inspection via ROV without the need for field joint coating removal. This greatly reduces integrity risk and the cost of expensive inspection operations. The ARTEMIS® is compatible with most work-class ROVs and delivers real time data that provides a 2D image of the wall thickness of the inspected area. The inspection can also provide information about coating thickness and identifies whether a loss of wall thickness is on the outside or inside of the inspection area of the pipe.

It has a wide range of applications including through-coating inspections, piggyback solutions and field joint inspections.

      Key benefits of TSC Subsea ARTEMIS®, incorporating ART technology, include:

      • Remotely deployed by inspection or WROV
      • Provides direct quantitative wall thickness measurement with highly accurate depth sizing (± 0.2mm)
      • Versatile design for axial and circumferential measurements
      • Instant data capture with live topside feed for audit and comparison purposes
      • Lightweight with minimal dredging requirements
      • Minimal vessel time required
      • Enhances life extension of the equipment

      ARTEMIS® vCompact

      Developed in 2021, the TSC Subsea ARTEMIS® vCompact is a smaller, lightweight, more-flexible version of the standard ARTEMIS®. Incorporating TSC Subsea’s ART technology in its design, it has all the capabilities of ARTEMIS® with some additional features. Its smaller size and more flexible frame makes it the ideal solution for tight access field joint, right access tubular, subsea jumpers, risers and riser guides and hot tapping locations inspection without the need for coating removal. Designed to work in tandem with inspection class ROV for the remote inspection of pipelines and structures, the tooling uses motorised and encoded manipulators which enable the probe to accurately follow the areas to be inspected. Inspection data is transferred to a topside computer and can be analysed from anywhere in the world.
      Key additional benefits of TSC Subsea ARTEMIS® vCompact, incorporating ART technology, include:

      • Tight access semi-automated precision scanner with ART
      • Diameters range 89mm (3″) to 3000mm (118″)
      • Dedicated ‘teach and learn’ software to follow complex geometries
      • Magnetically attached for efficient deployment
        Spectrogram showing the acoustic response from the pipe. Defects are clearly visible on the C-scan.
        C-scan showing wall thickness measurement.

        Our services

        Subsea Structures

        Splash Zone

        Vessels and FPSOs

        Flexible Risers



        Case Studies

        Acoustic Resonance Technology External Measurement Inspection System

        The purpose of the inspection was to measure effective steel thickness through 4 inches of pipeline insulations made of Glass syntactic polypropylene and injection moulded polypropylene. Scanning operations were carried out at 2000 meters water depth. More than 40...

        Remote Subsea Inspections

        Remote Subsea Inspections

        The challenge Risers, and the riser guides that hold them in place, are subject to severe environmental conditions that often lead to fatigue damage. Failure of these structures could be potentially catastrophic so they must be inspected regularly to ensure structure...