Produced Water Treatment

Full Line of Produced Water Treatment Solutions

ProSep offers a full line of proven methods for handling produced water while keeping installations in compliance and online. The line includes primary, secondary, and tertiary treatment solutions for onshore, fixed-offshore, and floating-offshore facilities. All of the offerings have been proven over a broad spectrum of applications and years of strong performance. Their individual limitations are also well-defined and understood.

Whether the goal is to re-inject for disposal or pressure maintenance, discharge to the surface or go overboard, ProSep can help producers to effectively treat produced water in a timely, smooth and cost-efficient manner.

Typical Produced Water Treatment Flow Diagram

ProSep Offering

  • Complete line of produced water treatment solutions
  • Decades of combined industry experience and packaging expertise
  • Proven and accepted conventional equipment designs
  • Next-level technologies
  • Quality manufacturing and assembly
  • Client-focused, customized, solution-oriented approach

    • Primary Separation

    In a typical process flow, production enters a three-phase high-pressure separator, from which the output is water with a 500-2000+ mg/l oil-in-water concentration. Initial treatment of the produced water stream will be either with a Skimmer, Corrugated Plate Interceptor (CPI), or a De-oiling Hydrocyclone, to take the dispersed oil levels well below 500 mg/l.

    Secondary Treatment

    After the first oil cut, the secondary stage of treatment conditions the produced water for overboard discharge, re-injection or further polishing through filtration. The secondary stage of treatment will consist of Induced Gas Flotation (IGF). Discharge oil-in-water concentrations are below 20 ppm.

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    Tertiary Treatment

    Primary and secondary treatment will keep 90% of operators worldwide within either regulatory or self-imposed discharge limits. Depending on the reservoir matrix or discharge requirements, a maximum of 15-25 mg/l of oil and/or solids may not be sufficient. Further polishing is best accomplished with Nutshell Media Filtration.

    Near Zero Discharge Offerings

    CTour®

    Produced water treatment for the future.

    In response to increasing produced water volume combined with stricter discharge legislation, ProSep offers the CTour® process. The process is one of the only technologies in the world that can cost-effectively remove both dispersed and dissolved hydrocarbons from large volumes of produced water. It does this through injecting a condensate of light hydrocarbons into the produced water stream to extract the harmful components. The CTour® process breaks ground as a step change in the treatment approach for produced waters and has served as a vehicle in facilitating "Zero Harmful Discharges" legislation in the North Sea. Aside from environmental advantages, the CTour® process provides improved separation efficiency for debottlenecking your produced water treatment problems.

    Typical CTour® Process

  • Condensate is injected and mixed with the produced water.
  • Hydrocarbon contaminants are extracted; oil and condensate droplets coalesce.
  • The condensate is separated from the produced water in the hydrocyclone and routed back to the main process.

    • ProSep's CTour® Offering

  • Prediction of performance
  • Process definition for implementation of CTour® process in both green field and brown field applications
  • Configuration and specification of equipment for full-scale installation
  • Project execution
  • Commissioning, start-up assistance, and operational support
  • Field testing

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    TORRTM De-Oiling Technology

    The TORRTM de-oiling technology, with its small footprint and ability to replace less efficient de-oiling equipment, exceeds today's discharge regulations in the treatment of produced water for offshore producers and operators. The scalable technology addresses future increases in water cut. Adding compact TORRTM vessels requires very little real estate when water cuts increase.

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    TORRTM Features

  • Small footprint and low weight
  • Better polishing for reinjection applications
  • Same high de-oiling efficiency during production start-up periods
  • No additional treatment required for recovered oil
  • Minimal pressure drop and maintenance
  • Minimal operation costs
  • High flow rate turndown
  • No moving internal parts
  • No added heat or chemicals

    • Gas Flotation Unit (GFU) Combination with CTour® or Eco-Friendly Flocculant

    To treat produced water for overboard discharge or reinjection, the Gas Flotation Unit (GFU) delivers a high degree of hydrocarbon removal. Combined with CTour®, the GFU removes dispersed and dissolved hydrocarbons, heavy metals, nano-particles, and aromatic components.

    The GFU can be used as a stand-alone unit that meets strict requirements of oil-in-water content. When combined with CTour®, its efficiency exceeds conventional induced gas flotation units by achieving outlet oil-in-water content of <5 ppm.

    Benefits

    • Up to 99% removal efficiency when combined with CTour®
    • High turndown
    • Robust and simple design - No moving parts
    • Minimal energy requirements
    • Simple operation and low maintenance
    • Small footprint
    • Motion insensitive design

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