Terrawatt Energy delivers comprehensive maintenance, engineering, and asset integrity solutions designed to optimize the performance and safety
Our fleet of work-class ROVs, equipped with high-definition cameras, laser scanners, and robotic manipulators, performs precise I-tube inspections without requiring dry-docking or manned interventions. AI-driven navigation systems enable these vehicles to operate in strong currents and low-visibility conditions, capturing millimetre-accurate data on internal wear, marine growth, and clamp integrity. Real-time video feeds and sensor data allow onshore engineers to direct inspections collaboratively, minimising operational disruptions while maximising safety in deepwater applications.
Our inspection protocols adhere to API 17L2 and ISO 13628-5 standards for subsea umbilicals, ensuring compliance with global safety regulations. Detailed reports include 3D defect mapping, remaining wall thickness calculations, and risk-based repair timelines. Audit-ready documentation simplifies regulatory submissions and supports insurance renewals, providing stakeholders with confidence in asset integrity.
For mature offshore fields, we design customised I-tube monitoring programs combining ROV inspections, cathodic protection surveys, and fatigue analysis. By integrating real-time strain gauge data and finite element modelling (FEM), we predict failure points in aging systems and prioritise retrofits or replacements. This strategy maximises ROI on legacy assets while deferring costly decommissioning timelines.
When unexpected I-tube damage threatens production, our rapid-response ROV teams mobilise within hours. Equipped with subsea repair clamps, hydraulic cutting tools, and hot-tapping systems, we execute emergency isolation, debris removal, or temporary sealing—buying time for permanent repairs without shutting down entire operations.
Beyond inspection, we deploy ROV-mounted tools to address issues immediately. From jetting obstructions to applying subsea coatings, our teams execute corrective actions during the same deployment. Predictive analytics software correlates inspection data with historical performance, identifying trends like galvanic corrosion or vibration-induced stress to recommend targeted maintenance schedules. This end-to-end approach extends I-tube lifespans by up to 50% while reducing unplanned interventions.
We specialise in critical I-tube inspections for umbilicals, risers, and subsea infrastructure, ensuring structural integrity and uninterrupted operations in offshore oil and gas systems. Using advanced remotely operated vehicles (ROVs) paired with non-destructive testing (NDT) methods like ultrasonic testing (UT) and eddy current arrays, we assess corrosion, fatigue, and mechanical damage in I-tubes—key components connecting FPSOs to subsea production systems. Our proactive inspections prevent catastrophic failures, safeguarding against costly downtime in harsh marine environments.
We collaborate with offshore operators, engineering firms, and regulatory bodies to ensure every I-tube inspection meets the highest industry standards. With Terrawatt, your subsea infrastructure receives comprehensive care and attention to detail.
Our state-of-the-art ROVs and inspection systems deliver precise diagnostics for umbilicals, risers, and subsea infrastructure. Equipped with high-definition cameras, laser scanners, and robotic manipulators, we ensure comprehensive coverage and accurate assessment.
With Terrawatt, your subsea assets receive the highest level of inspection and maintenance expertise.
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