Hydrasun, a Scottish-based services specialist, has secured a significant contract to supply subsea instrumentation for the Equinor-operated Mariner field in the North Sea. Valued at around $3 million, the contract was awarded by a major subsea original equipment manufacturer (OEM), which remains unnamed. This agreement covers the supply of low and high-pressure instrumentation tubing and fittings for a spool Christmas tree build program, with up to 20 trees to be manufactured over a three-year period.
Initial deliveries are set to begin in the first quarter of 2026, with Hydrasun supporting the phased build program as the project progresses. The company will supply specialist instrumentation products manufactured from exotic materials, including Super Duplex and 6Mo, designed to withstand the harsh operating conditions typical of subsea developments in the UK Continental Shelf (UKCS).
Hydrasun will collaborate closely with its global manufacturing partner, Parker Hannifin, to plan and schedule deliveries in line with the OEM’s production timetable. This partnership ensures continuity and certainty of supply throughout the program.
Craig Sangster, Chief Operating Officer at Hydrasun, highlighted the technical demands of the project, stating, “The Mariner development is a technically demanding project, and the supply of specialist instrumentation in materials such as Super Duplex and 6Mo reflects the level of engineering expertise and quality assurance that our customers expect from us.”
The Mariner field, located on the East Shetland Platform in UK Block 9/11a in the northern North Sea, is approximately 150 kilometers east of the Shetland Islands. Equinor operates the Mariner field with a 65.11% equity stake, while the partners include JX Nippon (20%), Siccar Point (8.89%), and ONE-Dyas (6%).
This contract underscores Hydrasun’s capability to deliver high-quality, specialized solutions for challenging subsea environments. The use of advanced materials like Super Duplex and 6Mo ensures that the instrumentation can endure the extreme conditions of the North Sea, reinforcing Hydrasun’s reputation for reliability and expertise in the sector.
The collaboration with Parker Hannifin further strengthens Hydrasun’s supply chain, ensuring that the project benefits from a robust and flexible manufacturing network. This partnership is crucial for meeting the precise and demanding schedules of subsea projects, where delays can have significant downstream impacts.
As the maritime industry continues to push the boundaries of deep-sea exploration and production, the demand for high-performance materials and precision engineering grows. Hydrasun’s involvement in the Mariner field project positions the company at the forefront of this technological evolution, driving innovation and setting new standards for subsea instrumentation.
The successful execution of this contract will not only contribute to the development of the Mariner field but also enhance Hydrasun’s standing in the global subsea market. By delivering on this high-profile project, Hydrasun reinforces its commitment to excellence and its ability to meet the complex demands of the offshore energy sector.
In the broader context, this project highlights the ongoing investment and technological advancements in the North Sea’s oil and gas fields. As operators like Equinor seek to maximize the potential of mature basins, the role of specialized service providers like Hydrasun becomes increasingly vital. Their expertise in materials science and engineering ensures that subsea infrastructure can operate efficiently and safely, even in the most challenging environments.
The Mariner field project exemplifies the synergy between operators, OEMs, and service providers in driving forward the energy transition. By leveraging advanced materials and cutting-edge technology, these partnerships are crucial for unlocking the potential of subsea resources while maintaining the highest standards of safety and environmental stewardship.
As the industry looks to the future, the lessons learned from projects like the Mariner field will be instrumental in shaping the next generation of subsea developments. The collaboration between Hydrasun and its partners sets a benchmark for excellence, demonstrating how innovation and strategic partnerships can overcome the technical challenges of deep-sea exploration.