Expro has introduced Solus, a new solution designed to simplify subsea well control operations while improving efficiency and reducing operational risk.
The system addresses longstanding challenges in in-riser subsea well intervention, where conventional methods typically rely on two separate valves, one for shearing and another for sealing coiled tubing.
Traditionally, this dual-valve approach increases operational time and introduces additional complexity, along with higher risk due to the use of multiple tools. As operators continue to prioritise streamlined processes and safer well intervention campaigns, the demand for more integrated technologies has grown. Solus responds to this need by combining shearing and sealing into a single ball-valve system capable of performing both functions in one operation.
Enhanced well control capabilities
Solus has been tested and validated to API Std 17G and is fully compliant with NACE MR0175 standards. It is designed as a fail-close, bi-directional sealing system with high debris tolerance, capable of shearing and sealing braided wireline, slickline and coiled tubing. The system can be integrated into a subsea test tree assembly or deployed in open water applications, providing a primary and independent barrier for well isolation during testing or intervention activities while also helping to mitigate emissions risks.
The system has been qualified using a 15% sand slurry, demonstrating its ability to operate effectively in environments with high levels of debris, aggressive media and entrained solids. This makes it particularly suitable for wells where reservoir fracturing has taken place or where challenging fluid conditions are present.
Driving operational efficiency
Solus is engineered for both in-riser and open water operations, offering faster performance compared to conventional manual systems. Its modular design enables operators to isolate and disconnect from the well in a manner similar to traditional subsea test tree systems. In addition, its compact and lightweight configuration supports the industry’s transition towards smaller, next-generation blowout preventer stacks.
The solution is applicable across the full well lifecycle, from exploration and appraisal through to completion, intervention and eventual decommissioning. It supports a wide range of activities including subsea engineering, offshore drilling, well control and supply chain operations, helping operators enhance overall efficiency.
Proven field deployment
Solus has already demonstrated its capabilities in real-world applications. It has been successfully deployed in an in-riser completions development project in the Gulf of Mexico and has also been commissioned for an open water plug and abandonment campaign in the North Sea. These deployments highlight its adaptability across different offshore environments and operational requirements.
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