Advanced visualisation and measurement solutions for critical mooring system inspections
Challenge
A Floating Production Storage and Offloading (FPSO) vessel, operating offshore West Africa, was due for its class society, 5-year mooring system inspection. The primary objective was to inspect critical mooring components including deep and shallow water chain segments in a challenging offshore environment with multiple operational constraints.
Solution
Leveraging our extensive experience and best-in-class technology, Ashtead Technology delivered a full-service inspection scope that included vital surveys, trench assessments, intergrip measurements and advanced 3D photogrammetry for shallow water segments and anomaly visualisation and measurement.
To complete the scope, Ashtead Technology utilised core proprietary technology including:
- Chain Measurement System (CMS) for optical measurements
- Subsea Caliper (SSC) for mechanical dimensioning
- Voyis Discovery Stereo Camera system for high-accuracy photogrammetry
- Subsea Cleaning Tool (SCT) to remove marine growth effectively without damaging components
A team of inspection engineers and technicians expertly navigated offshore challenges, including severely heaving chains, restricted visibility and operational disruptions, to deliver precise and actionable inspection data. Project phases included thorough planning with all stakeholders, Hazard Identification and Risk Assessment (HIRA) execution, real-time data acquisition during offshore operations and comprehensive reporting with detailed visual models and measurements.
Results and impact
Ashtead Technology’s range of bespoke inspection services, tooling and use of advanced photogrammetry technology was crucial in difficult sea states and key to the success of this project. This was specifically highlighted by the customer and class surveyor, demonstrating the robustness of our technology and offshore expertise.
The detailed dimensional and visual data we provided supported informed decision-making regarding asset integrity and life extension. By maintaining operational efficiency throughout the inspection, and delivering high-quality, actionable reports, Ashtead Technology reinforced its position as a trusted partner in complex subsea inspection campaigns.
To find out more, contact us today!