
Case Study
Transforming Produced Water in Oil & Gas with
Sigma Waters

The Challenge:
Produced Water in Oil & Gas
In oil and gas drilling, one of the largest challenges is managing produced water—a byproduct that often exceeds oil production by 4–7 times. Handling this water creates costly problems:
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Environmental risks from disposal and contamination
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Operational downtime linked to transportation and disposal bottlenecks
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Safety concerns from hazardous chemical treatments and trucking requirements
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Shrinking disposal capacity in critical regions such as the Permian Basin

As one industry executive put it:
We’ve become a water
company with an oil problem.

The Sigma Waters Solution
Sigma Waters has pioneered an ozone-based water treatment system purpose-built for oilfield conditions. Unlike chemical-heavy alternatives, Sigma’s approach uses the power of ozone—an oxidant with the highest disinfection strength—to clean produced water safely and efficiently.
Key Technology Advantages:
Sigma Waters was founded by a team of scientists and engineers to address the oil industry’s biggest water challenge—produced water. With roots in Sandia National Laboratories, we deliver environmentally responsible ozone-based water treatment to operations of every size.
Results That Scale
Sigma Waters’ mobile systems demonstrate that produced water doesn’t need to be an operational burden. Their technology offers:
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Flexibility to deploy units directly where they’re needed
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Scalability to handle everything from small operators to large-scale fields
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Sustainability by reducing seismic disposal risks and enabling water recycling
Real-World Impact in Oil & Gas
Sigma Waters units are already operating in the field, providing oil producers with:
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Lower costs: treatment for as little as
$0.03 per barrel -
Fewer safety risks: eliminating storage and handling of hazardous chemicals
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Regulatory compliance: addressing stricter environmental rules with a sustainable solution
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Water reuse opportunities: converting produced water into a resource instead of a liability
Industry-Wide Benefits
For the oil and gas industry, Sigma Waters provides a path forward to:
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Reduce environmental footprint
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Cut costs tied to produced water disposal
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Increase operational uptime
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Support long-term sustainability in oilfield operations
Sigma Waters isn’t just treating water—it’s redefining how the oil and gas industry approaches one of its most pressing challenges.
The Power of Ozone


Greater oxidation strength vs other options
Pathogen kill efficacy better than ClO2
Gaseous delivery
Does not affect nor is affected by pH
Converts back into oxygen within minutes
No hazardous residual
Eliminates HAZMAT chemical storage
No storage safety risk
Fully automated Cost effective