Surface
Dedicated to intervention
An unmatched fleet of seven dedicated, custom-designed subsea well intervention vessels strategically located around the world and supported by 50+ ROVs
Subsea
Efficient access to any well
Innovative riser-based, riserless, and specialized subsea well access and control systems for efficient access to any subsea well worldwide
Subsurface
The right tools for every job
A comprehensive portfolio of subsea reservoir performance services, leveraging cutting-edge, live-data-driven, and powered technologies and production chemistry to maximize returns from subsea assets

What is the Subsea Services Alliance?

Combining surface, subsea, and subsurface capabilities with proven world-class technologies, Subsea Services Alliance brings together the best of Schlumberger and Helix Energy Solutions Group to deliver integrated subsea intervention and decommissioning solutions designed to maximize economic recovery, reduce costs, and enhance safety.

We leverage an unmatched fleet of dedicated subsea intervention vessels, a global network of experts, and an unrivaled portfolio of well access technologies, innovative digital tools, subsea reservoir performance services, and production chemistry to maximize your returns.

Whether you need to efficiently enhance subsea production, extend productive life, or optimize decommissioning, we bring it all together—seamlessly.

Tech Talk: Subsea Services Alliance
Reservoir-driven approach, early proactive customer engagement, and performance-based contracts
Synchronized Services: Holistic Intervention and Decommissioning Solutions in 4D
Through our reservoir-driven approach and early proactive customer engagement, we combine the strengths of Schlumberger and Helix Energy Solutions Group to advise, plan, deliver, and continuously improve economically viable solutions.
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Recent Projects

Subsea Tree Repair Completed 30% Under Budget, Gulf of Mexico

Proprietary intervention system records 99.4% operating uptime and minimizes deferred production.

Intercompany Collaboration Improves Subsea Control Valve Reliability >350%

Well access system continues performing after 4,500 hours with zero NPT, deepwater Gulf of Mexico.

Subsea Intervention Program in Five Wells Completed 25 Days Ahead of Schedule

Single deployment of well access system with 96.86% uptime across 73 days, offshore Nigeria.

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