Manifold monitoring in deep water
- Industry: Oil & Gas
- Location: Norway – North Sea – Ormen Lange
- Hydro: Orus 3D (former Hydro 3000) | ROV: Merlin UCV | Depth: 500 – 800 m
Mission’s context
Deepwater manifold inspections are crucial for ensuring the integrity and functionality of subsea infrastructure. Traditional inspection methods often face challenges in deepwater environments due to limited visibility, high pressure, and the complexity of the structures.
This mission involved the inspection of two manifolds installed in two different templates at a depth of 800 msw. The primary objective was to verify the installation of the conductor and carry out a comprehensive inspection of its position against critical components including:
- Conductor and its lock pins
- Tombstone
- Guide pins
- Manifold wing hub and landing pads
IVM Solution
IVM Technologies provided state-of-the-art underwater stereo photogrammetry camera, the ORUS3D, specifically designed for deep water applications. One of our experts at IVM assisted the client’s personnel, ensuring the successful execution of the survey. In collaboration with them and marine contractors responsible for ROV deployment, IVM Technologies mobilized the photogrammetry survey equipment onto the designated vessel and ROV. This step involved careful planning and coordination to ensure seamless integration and operation of the equipment.
The acquired data was processed to generate high-resolution, textured 3D models of the surveyed areas. These models provide a detailed visual representation of the manifolds and their components, allowing for precise measurements and thorough inspections. The 3D models are particularly valuable for identifying any deviations or anomalies that may require further attention, as they offer a level of detail that is difficult to achieve with traditional inspection methods.
A dimensional control analysis was performed on the 3D models to ensure that all components met the specified design criteria. This involved measuring critical dimensions and comparing them with the nominal values provided by the client. The dimensional control process is essential for verifying the integrity and proper installation of the manifolds and their components, as it provides quantitative data that can be used to assess the condition of the infrastructure.
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