J-tubes and I-tubes – How Inspections are ensuring the longevity of your asset.
J-tubes and I-tubes play a critical role in protecting cables, umbilicals, and risers as they transition from subsea to topside structures. These assets are subject to loading, aggressive environments, and challenging inspection access. Undetected defects or degraded weld conditions can lead to serious operational and safety risks. AISUS provides targeted inspection solutions to identify issues early and support informed future maintenence planning.
Failure Consequences
As offshore assets go beyond their intended design life, the integrity of subsea structures in particular J-Tubes and I-Tubes become more critical.
Failure to inspect J-Tubes and I-tubes may lead to loss of containment, especially corrosion or fatigue in the unseen riser pipe, leading to potential hydrocarbon leaks and environmental disasters. Structural failure may also become present with unidentified corrosion leading to the collapse of the tube joints. These failures can cause operational disruption and massive financial and safety risks, which is why early identification of defects is essential to reducing risk and extending asset life
AISUS Methods and Capabilities
AISUS delivers inspection services tailored to both onshore and offshore assets enabling easy access and data collection from both J-tubes and I-tubes. Our teams are experienced in working within confined spaces, complex weld configurations, and splash-zone conditions.
AISUS technology has been crafted by our expert engineers with innovation at the forefront of development. Our crawlers enable entry into small internal diameters and around tight bends, collecting UT and visual data in never-before-seen areas. Our crawlers can be customised with different technology, for example: a high-pressure jetting unit or gauge plates depending on your inspection needs.
AISUS applies advanced non-destructive testing techniques to assess weld integrity and material condition without damaging the asset. These methods allow for reliable detection of surface and sub-surface defects, including cracking and corrosion. Utilising our vast knowledge and awareness, AISUS has designed and manufactured several unique inspection systems which are controlled by a small team at topside with abilities to manoeuvre past bends, along horizontal sections and eliminates the need for human entry.
We also host a selection of hydraulic tools, including hydraulic cutters which can be used for cutting messenger wires down both J-tubes and I-tubes.
Data Management
Our innovation enables the collection of actionable data, letting clients see defects firsthand and identifying weld conditions. However we offer much more than just the collection of data. Gemini, our Data Management platform utilises AI technology to give our clients predictive corrosion and in-depth insights that enable operators to track corrosion trends, prioritise repairs, and make confident integrity decisions over the life of the asset.
