MYCELX RE-GEN Advanced Water Treatment Media
Treats water with 95% single-pass efficiency—without chemicals
MYCELX RE-GEN advanced water treatment media is a proprietary backwashable media used for oily wastewater streams and produced and process water. Coated with a patented polymer, the media provides an economically sustainable treatment for removal of oils and suspended solids down to 5 um with 95% single-pass effectiveness, without the use of chemicals.
MYCELX RE-GEN media can function as a primary or secondary treatment option for oil and solids removal. Influent water quality, discharge requirements, and the end use of the treated water dictate the treatment system design.
Generates process and cost savings
For chemical enhanced oil recovery (CEOR) applications, polymer- and chemical-laden water that has been treated with MYCELX RE-GEN media can be recycled for reuse in the injection field and, in the case of polymer, with no viscosity loss across the system. The media removes oils and solids but very little to none of the water-soluble enhanced oil recovery (EOR) products. In thermal EOR, removing the oil and solids before sending the produced water to a softener generates process and cost savings.
APPLICATIONS
Onshore and offshore water treatment
Produced water treatment for discharge and recycle
Enhanced oil recovery
● Chemical enhanced oil recovery (CEOR)
● Steam-assisted gravity drainage (SAGD)
BENEFITS
Removes free and dispersed oil, solids, and oil-coated solids in one step without requiring additional chemicals for water separation；
Treats CEOR produced water from polymer and alkaline surfactant polymer (ASP) floods without absorbing polymer；
Provides long lifecycle and low operating cost；
Ensures reliable and predictable performance down to 5 um for free and dispersed oil, solids, and oil-coated solids；
Prevents process upsets and excursions with minimal impact on performance.
FEATURES
Standard (vertical) vessel configuration runs at any flow rate in multiple trains or horizontal design;
High effluent loading of 500-ppm oil and particulates;
Discharge at 5–50 ppm at outlet (depending on oil type and droplet size);
Capable of extended excursions exceeding 2,000-ppm oil recovered with increased backwash frequency.
Case Study: MYCELX Technology Recovers 98% of Oil Content from Heavily Emulsified Produced Water
Oil-free water technology reduces 2,500-ppm content to less than 10 ppm, enabling polymer injection reuse in EOR campaign
Challenge: Decontaminate produced water emulsified with 200- to 2,500-ppm oil and grease and 50- to 1,000-ppm solids—all with varying viscosities—from the enhanced oil recovery (EOR) process implemented in a mature field with medium-heavy oil.
Solution: Deploy a customized suite of MYCELX oil-free water technology, which uses patented oleophilic filtration media to attract, recover, and remove a range of oil types at varying concentrations.
Result: Removed oil initially at up to 2,500 ppm in the produced water to achieve oil content less than 10 ppm under upstream production process upset conditions, achieving an oil recovery rate of up to 98% and protecting the reservoir formation from plugging.
Remove oil from highly contaminated produced water for reinjection
A major oil and gas operator in North America implemented an EOR process in a mature field with medium-heavy oil. The EOR technologies used were polymer flooding and alkaline surfactant polymer (ASP) flooding. These techniques significantly increased production rates but resulted in highly emulsified produced water with higher concentrations of oil from the freewater-knockout outlet.
The produced water was emulsified with oils, solids, and residual polymer from the EOR process and contained 200- to 2,500-ppm oil and grease and 50- to 1,000-ppm solids, all with varying viscosities. The high levels of oil and total suspended solids (TSS) concentrations increased the consumption of chemicals to maintain production levels, reduced process efficiency, and risked plugging the reservoir formation.
Conventional filtration technologies proved to be unsuccessful at consistently treating the water to less than 10 ppm, which is the level necessary for recycling the produced water and minimizing the use of chemicals required for polymer flooding.
Engineer a customized MYCELX technology solution
To meet the operator’s objectives, Schlumberger recommended a custom MYCELX technology program in a pilot trial. The program presented a robust, compact solution consisting of
oil/water separator to coalesce and recover oil in the primary stage
MYCELX RE-GEN advanced water treatment in the secondary stage
MYCELX Polisher oil-in-water polishing filters in the tertiary stage.
The technology uses a patented oleophilic filtration media that attracts, recovers, and removes various oil types at varying concentrations, and all systems are designed per American Society of Mechanical Engineers (ASME), National Association of Corrosion Engineers (NACE), and Alberta Boilers Safety Association (ABSA) requirements for pressure vessels, instrumentation, and skids.
Achieved 98% reduction of oil-in-water level for reuse injection
Using the suite of MYCELX technology, the operator consistently removed up to 98% of the oil from the produced water to achieve concentrations of less than 10 ppm, even at a flow rate of 286 bbl/h [46 m3/h] during upset conditions in the upstream production process. The operator was able to reuse the decontaminated water in its polymer injection campaign, saving time and costs. Because the filtration system was easy to operate and required minimal maintenance, the operator saved additional time and internal resources.
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