Flexible Riser Inspection
The use of flexible piping has increased tremendously in the past decade. Its layered structure poses challenges for the inspection industry. If the outer sheath of flexible pipe is breached, sea water can mix with the gases in the annulus, creating a corrosive atmosphere leading to failure. A reliable non-destructive inspection, which is able to penetrate the structural layers of the pipe, is therefore necessary. Acoustic Resonance Technology (ART) enables the medium detection in the critical annulus area of the flexible pipe.
Flexible Riser Inspection
Since flexible risers have been in service, there has been a need and requirement to determine the medium within the annulus of the flexible pipe. Flexible pipe annulus medium detection is a challenge due to the complexity of the multi layered and multimaterial structure in combination with the external forces caused by water depth. Providing a reliable non-intrusive inspection of the flexible pipe’s annulus has proven to be an industry challenge.
TSC Subsea solves this challenge by using its acoustic resonance technology (ART), a cost-effective, non-intrusive method to inspect flexible risers and flowlines. The technology was first commercialized for subsea inspections by DNV in the 1990’s; since then the technology was transferred to Halfwave and is now part of the TSC Subsea technologies group. The sensitivity of ART is very well suited to annulus medium detection solutions and was first patented in 2006. TSC Subsea has over many years developed deepwater subsea inspection systems, application solutions including studies, and testing focused on annulus medium detection.
ARTEMIS® technology:
• Characterizes the medium within the annulus
• Evaluates the outer sheath’s condition
• Provides structural information for integrity analysis
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