In a significant advancement for offshore operations, DeepOcean and Woodside Energy have completed an integrated subsea inspection and 3D scanning campaign in the Sangomar field, located off the coast of Senegal. The initiative introduces a dual-scope approach that allows both tasks to be executed simultaneously, reducing operational time and costs.
A Methodology Redefining Subsea Inspection
Traditionally, routine inspections and three-dimensional scanning of subsea infrastructure were carried out in separate campaigns using remotely operated vehicles (ROVs). However, DeepOcean has developed an integrated system that combines both activities into a single operation.
Furthermore, this methodology allowed for intervention on a total of 69 subsea structures, including production trees, without the need to increase offshore personnel. The result was a significant reduction in vessel days, while maintaining high quality standards in data acquisition.
Integrated Technology and Advanced Photogrammetry
The applied approach is based on a technological ecosystem that integrates specialized hardware and proprietary software. This system includes ROVs equipped with scanning sensors, image capture tools, sonar, and processing platforms compatible with CAD models.
Additionally, photogrammetry plays a key role by converting 2D images into precise three-dimensional models. This technique allows for the generation of detailed digital representations of subsea assets, facilitating the creation of digital twins and enhancing structural understanding.
Moreover, the integration of this data allows for more precise detection of anomalies such as cracks or deformations, optimizing maintenance planning and reducing the risk of failures.
Impact on Efficiency and Decision-Making
The campaign in Sangomar was completed in just over half the time that two separate operations would require. Furthermore, the volume of collected data was doubled, which improves the quality of subsequent analysis.
From an operational perspective, this approach provides more comprehensive information for decision-making in future subsea inspection, maintenance, and intervention activities.
A Step Forward in Offshore Operations in Africa
The Sangomar field, located approximately 100 kilometers south of Dakar, began production in June 2024 and represents one of the key deepwater developments in West Africa.
In this context, DeepOcean continues to strengthen its regional presence with operations in several countries across the continent, supporting both the oil and gas sector and initiatives linked to the energy transition.
Source and photo: DeepOcean