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Seabox module on offshore platform preparing for installation subsea

Subsea Processing

We have the technology and expertise to provide advanced, industry-leading processing solutions for greenfield and brownfield applications.

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Modular. Configurable. Scalable.

Our disruptive subsea processing technologies help enhance your field performance, extend production, and solve topside capacity challenges. Recoverable and potentially reusable, the unmanned facilities help improve field economics while securing and increasing flowline production capacity and in parallel reducing carbon emissions.

Improve field economics

From long-distance tiebacks of remote and marginal fields to mature fields, our subsea processing solutions create incremental value by enabling field development that otherwise would be constrained by the host facility. Located on the seabed, these proven, unmanned facilities are easy to install, increase oil recovery, and require low maintenance.

Enabling technology

Our pioneering Seabox™ subsea seawater treatment module and SWIT™ sulfate removal system enhance oil recovery and reduce the health, safety, and environmental (HSE) impact of water injection, including lower power consumption and chemical use. The world’s first commercial subsea water treatment and filtration systems have won OTC’s Spotlight on New Technology Awards: Seabox in 2018 and SWIT in 2020.

Our subsea processing technologies safely, efficiently, and reliably operate in water depths of up to 3,000 m, temperatures down to freezing, and pressures as required for your water injection solution.



  • Seabox Brochure
  • Seabox Business Case

    Case Study for seabox business case

Pain points and opportunities for Subsea Processing Solutions


Hoist constraints/ Brownfields

  • Space weight capacity
  • Riser Tie-in slots
  • Lost production, during host modification
  • Phased development
  • Defer abandonment/IOR


  • Offshore manning
  • Chemical use
  • Power consumption, including CO2 emissions and associated taxes
Flow stop

Long Tiebacks

  • Flow assurance
  • Pipeline restrictions
  • Unmanned operations
NOV Seabox above water

Subsea Seawater Treatment

Our energy-efficient Seabox subsea water treatment solution applies a two-step electrolysis process in an inherently simplistic design.

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Subsea chemical storage

Subsea Chemical Storage and Injection

We help solve topside capacity challenges and enable cost-effective electrification, improved field economics and flow assurance.

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Rendering of a Subsea Produced Water Treatment Technology system

Produced Water Treatment

Take your produced water treatment process to the seabed with robust and consistently performing technology.

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Main Seaback tieback in operation subsea
Seabox tie back render
Seabox module installed on the seafloor

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