Enabling Oilfield Produced Water Reuse.

Oleava Technologies is a University of Toronto spin-off delivering next-generation oil–water separation for produced water in upstream and midstream operations.

Built and validated with U.S. and Canadian agencies, our modular, low-energy systems capture the micro- and nano-emulsions that limit conventional treatment performance. Designed for reliability in onshore and offshore environments, Oleava enables operators to meet evolving regulatory requirements while turning produced water into a reusable, cost-effective resource.


Oleava is the pivot point that transforms produced water from a disposal endpoint into a reuse-ready input for the next generation of energy and water systems.

Service Offerings

Our specialized services are designed to support oil & gas operators, environmental managers, and industrial stakeholders—from initial design to long-term system performance

Water Reuse Systems Design

Experience our site-specific treatment assessments, integration planning, and flow modeling for SAGD, CSS, offshore, and SWD workflows.

Produced Water Treatment Solutions

Turnkey containerized units for treatment with cartridge replacement programs, operator training, and predictive maintenance.

Smart Monitoring & Analytics

Real-time oil-in-water dashboards, anomaly detection, intelligent operation analytics, and compliance summaries.

Why Oleava?

  • Proudly Canadian, Purposefully-built: Oleava is designed, engineered, and manufactured in Canada—where harsh climates, stringent regulations, and high performance expectations are part of the operating standard. We understand the unique challenges North American oil and gas operators face, from unpredictable discharge quality to rising compliance costs. That’s why we don’t just deliver a product—we deliver peace of mind.
  • Onshore and Offshore-ready: Lightweight filters, stackable housing assembly, and ultra-low-energy operation—ideal for platforms with space and energy constraints.
  • High performance filtration: reliable <2 ppm oil-in-water concentration ensures easy integration to support regulatory compliance and ESG goals.
  • Zero heat, no membranes, no fouling — unlike DAF, MPPE, or hydrocyclones.
  • Low-risk, high-impact operation: Every Oleava unit reflects our commitment to durability, precision, and long-term value for operations that can’t afford compromise. With easy filter replacement and regeneration, no specialized operator training is required.
  • Optimized for Cost-Efficiency & Compliance ROI: Reduce operational downtime, lower effluent treatment costs, and extend asset life with a system designed to outperform traditional polishing technologies.

Ask us how we can lower your water treatment cost and improve your bottom line!

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